Proposals for CF

Proposer: Martin Juckes

Proposed Date: Sept. 5, 2018

Comments: CMIP6 - OMIP

CF mailing list link: Ocean content tendencies due to sedimentation -- sign ambiguity in CMIP usage

Units: mol m-2 s-1 (M2MS)

New Term

The phrase "tendency_of_X" means derivative of X with respect to time. The phrase "minus_tendency" means that the quantity described takes the opposite sign convention to that for the quantity which has the same standard name apart from this phrase, i.e. the two quantities differ from one another by a factor of -1. Thus a "minus_tendency" in the atmosphere means a positive deposition rate onto the underlying surface. "Content" indicates a quantity per unit area. The "ocean content" of a quantity refers to the vertical integral from the surface to the bottom of the ocean. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Denitrification" is the conversion of nitrate into gaseous compounds such as nitric oxide, nitrous oxide and molecular nitrogen which are then emitted to the atmosphere. "Sedimentation" is the sinking of particulate matter to the floor of a body of water.

Proposer: Martin Juckes

Proposed Date: Sept. 5, 2018

Comments: CMIP6 - OMIP

CF mailing list link: Ocean content tendencies due to sedimentation -- sign ambiguity in CMIP usage

Units: mol m-2 s-1 (M2MS)

New Term

The phrase "tendency_of_X" means derivative of X with respect to time. The phrase "minus_tendency" means that the quantity described takes the opposite sign convention to that for the quantity which has the same standard name apart from this phrase, i.e. the two quantities differ from one another by a factor of -1. Thus a "minus_tendency" in the atmosphere means a positive deposition rate onto the underlying surface. "Content" indicates a quantity per unit area. The "ocean content" of a quantity refers to the vertical integral from the surface to the bottom of the ocean. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Sedimentation" is the sinking of particulate matter to the floor of a body of water. "Inorganic carbon" describes a family of chemical species and is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute.

Proposer: Martin Juckes

Proposed Date: Sept. 5, 2018

Comments: CMIP6 - OMIP

CF mailing list link: Ocean content tendencies due to sedimentation -- sign ambiguity in CMIP usage

Units: mol m-2 s-1 (M2MS)

New Term

The phrase "tendency_of_X" means derivative of X with respect to time. The phrase "minus_tendency" means that the quantity described takes the opposite sign convention to that for the quantity which has the same standard name apart from this phrase, i.e. the two quantities differ from one another by a factor of -1. Thus a "minus_tendency" in the atmosphere means a positive deposition rate onto the underlying surface. "Content" indicates a quantity per unit area. The "ocean content" of a quantity refers to the vertical integral from the surface to the bottom of the ocean. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Sedimentation" is the sinking of particulate matter to the floor of a body of water. "Organic carbon" describes a family of chemical species and is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute.

Proposer: Martin Juckes

Proposed Date: Sept. 5, 2018

Comments: CMIP6 - OMIP

CF mailing list link: Ocean content tendencies due to sedimentation -- sign ambiguity in CMIP usage

Units: mol m-2 s-1 (M2MS)

New Term

The phrase "tendency_of_X" means derivative of X with respect to time. The phrase "minus_tendency" means that the quantity described takes the opposite sign convention to that for the quantity which has the same standard name apart from this phrase, i.e. the two quantities differ from one another by a factor of -1. Thus a "minus_tendency" in the atmosphere means a positive deposition rate onto the underlying surface. "Content" indicates a quantity per unit area. The "ocean content" of a quantity refers to the vertical integral from the surface to the bottom of the ocean. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Sedimentation" is the sinking of particulate matter to the floor of a body of water.

Proposer: Alison Pamment

Proposed Date: Sept. 24, 2018

Comments: CMIP6 - OMIP. Correct typo in spelling of 'gaseous'.

CF mailing list link: Ocean content tendencies due to sedimentation -- sign ambiguity in CMIP usage

Units: mol m-2 s-1 (M2MS)

Updated term description

The phrase "tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "ocean content" of a quantity refers to the vertical integral from the surface to the bottom of the ocean. The specification of a physical process by the phrase due_to_process means that the quantity named is asingle term in a sum of terms which together compose the general quantity named by omitting the phrase. 'Denitrification' is the conversion of nitrate into gaseous compounds such as nitric oxide, nitrous oxide and molecular nitrogen which are then emitted to the atmosphere. 'Sedimentation' is the sinking of particulate matter to the floor of a body of water.

Proposer: Martin Juckes

Proposed Date: June 25, 2018

Comments: CMIP6 - OMIP. Amend expressed_as_heat_content definition.

CF mailing list link: tendency_of_sea_water_conservative_temperature_expressed_as_heat_content units

Units: W m-2 (UFAA)

Updated term description

The phrase "tendency_of_X" means derivative of X with respect to time. The phrase "expressed_as_heat_content" means that this quantity is calculated as the specific heat capacity times density of sea water multiplied by the potential temperature of the sea water in the grid cell and integrated over depth. If used for a layer heat content, coordinate bounds should be used to define the extent of the layers. If no coordinate bounds are specified, it is assumed that the integral is calculated over the entire vertical extent of the medium, e.g, if the medium is sea water the integral is assumed to be calculated over the full depth of the ocean. Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized mesoscale eddy advection occurs on a spatial scale of many tens of kilometres and an evolutionary time of weeks. Reference: James C. McWilliams 2016, Submesoscale currents in the ocean, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, volume 472, issue 2189. DOI: 10.1098/rspa.2016.0117. Parameterized mesoscale eddy advection is represented in ocean models using schemes such as the Gent-McWilliams scheme. There are also standard names for parameterized_submesoscale_eddy_advection which, along with parameterized_mesoscale_eddy_advection, contributes to the total parameterized eddy advection. Additionally, when the parameterized advective process is represented in the model as a skew-diffusion rather than an advection, then the parameterized skew diffusion should be included in this diagnostic. The convergence of a skew-flux is identical (in the continuous formulation) to the convergence of an advective flux, making their tendencies the same.

Proposer: Martin Juckes

Proposed Date: June 25, 2018

Comments: CMIP6 - OMIP. Amend expressed_as_heat_content definition.

CF mailing list link: tendency_of_sea_water_conservative_temperature_expressed_as_heat_content units

Units: W m-2 (UFAA)

Updated term description

The phrase "tendency_of_X" means derivative of X with respect to time. The phrase "expressed_as_heat_content" means that this quantity is calculated as the specific heat capacity times density of sea water multiplied by the conservative temperature of the sea water in the grid cell and integrated over depth. If used for a layer heat content, coordinate bounds should be used to define the extent of the layers. If no coordinate bounds are specified, it is assumed that the integral is calculated over the entire vertical extent of the medium, e.g, if the medium is sea water the integral is assumed to be calculated over the full depth of the ocean. Conservative Temperature is defined as part of the Thermodynamic Equation of Seawater 2010 (TEOS-10) which was adopted in 2010 by the International Oceanographic Commission (IOC). Conservative Temperature is specific potential enthalpy (which has the standard name sea_water_specific_potential_enthalpy) divided by a fixed value of the specific heat capacity of sea water, namely cp_0 = 3991.86795711963 J kg-1 K-1. Conservative Temperature is a more accurate measure of the "heat content" of sea water, by a factor of one hundred, than is potential temperature. Because of this, it can be regarded as being proportional to the heat content of sea water per unit mass. Reference: www.teos-10.org; McDougall, 2003 doi: 10.1175/1520-0485(2003)033<0945:PEACOV>2.0.CO;2. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized submesoscale eddy advection occurs on a spatial scale of the order of 1 km horizontally. Reference: James C. McWilliams 2016, Submesoscale currents in the ocean, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, volume 472, issue 2189. DOI: 10.1098/rspa.2016.0117. There are also standard names for parameterized_mesoscale_eddy_advection which, along with parameterized_submesoscale_eddy_advection, contributes to the total parameterized eddy advection. Additionally, when the parameterized advective process is represented in the model as a skew-diffusion rather than an advection, then the parameterized skew diffusion should be included in this diagnostic. The convergence of a skew-flux is identical (in the continuous formulation) to the convergence of an advective flux, making their tendencies the same.

Proposer: Martin Juckes

Proposed Date: June 25, 2018

Comments: CMIP6 - OMIP. Amend expressed_as_heat_content definition.

CF mailing list link: tendency_of_sea_water_conservative_temperature_expressed_as_heat_content units

Units: W m-2 (UFAA)

Updated term description

The phrase "tendency_of_X" means derivative of X with respect to time. This tendency encompasses all processes that impact on the time changes for the heat content within a grid cell. The phrase "expressed_as_heat_content" means that this quantity is calculated as the specific heat capacity times density of sea water multiplied by the potential temperature of the sea water in the grid cell and integrated over depth. If used for a layer heat content, coordinate bounds should be used to define the extent of the layers. If no coordinate bounds are specified, it is assumed that the integral is calculated over the entire vertical extent of the medium, e.g, if the medium is sea water the integral is assumed to be calculated over the full depth of the ocean. Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure.

Proposer: Martin Juckes

Proposed Date: June 25, 2018

Comments: CMIP6 - OMIP. Amend expressed_as_heat_content definition.

CF mailing list link: tendency_of_sea_water_conservative_temperature_expressed_as_heat_content units

Units: W m-2 (UFAA)

Updated term description

The phrase "tendency_of_X" means derivative of X with respect to time. The phrase "expressed_as_heat_content" means that this quantity is calculated as the specific heat capacity times density of sea water multiplied by the potential temperature of the sea water in the grid cell and integrated over depth. If used for a layer heat content, coordinate bounds should be used to define the extent of the layers. If no coordinate bounds are specified, it is assumed that the integral is calculated over the entire vertical extent of the medium, e.g, if the medium is sea water the integral is assumed to be calculated over the full depth of the ocean. Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Eddy dianeutral mixing" means dianeutral mixing, i.e. mixing across neutral directions caused by the unresolved turbulent motion of eddies of all types (e.g., breaking gravity waves, boundary layer turbulence, etc.).

Proposer: Martin Juckes

Proposed Date: June 25, 2018

Comments: CMIP6 - OMIP. Amend expressed_as_heat_content definition.

CF mailing list link: tendency_of_sea_water_conservative_temperature_expressed_as_heat_content units

Units: W m-2 (UFAA)

Updated term description

The phrase "tendency_of_X" means derivative of X with respect to time. The phrase "expressed_as_heat_content" means that this quantity is calculated as the specific heat capacity times density of sea water multiplied by the conservative temperature of the sea water in the grid cell and integrated over depth. If used for a layer heat content, coordinate bounds should be used to define the extent of the layers. If no coordinate bounds are specified, it is assumed that the integral is calculated over the entire vertical extent of the medium, e.g, if the medium is sea water the integral is assumed to be calculated over the full depth of the ocean. Conservative Temperature is defined as part of the Thermodynamic Equation of Seawater 2010 (TEOS-10) which was adopted in 2010 by the International Oceanographic Commission (IOC). Conservative Temperature is specific potential enthalpy (which has the standard name sea_water_specific_potential_enthalpy) divided by a fixed value of the specific heat capacity of sea water, namely cp_0 = 3991.86795711963 J kg-1 K-1. Conservative Temperature is a more accurate measure of the "heat content" of sea water, by a factor of one hundred, than is potential temperature. Because of this, it can be regarded as being proportional to the heat content of sea water per unit mass. Reference: www.teos-10.org; McDougall, 2003 doi: 10.1175/1520-0485(2003)033<0945:PEACOV>2.0.CO;2. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. The phrase "residual_mean_advection" refers to the sum of the model's resolved advective transport plus any parameterized advective transport. Parameterized advective transport includes processes such as parameterized mesoscale and submesoscale transport, as well as any other advectively parameterized transport. When the parameterized advective transport is represented in the model as a skew-diffusion rather than an advection, then the parameterized skew diffusion should be included in this diagnostic, since the convergence of skew-fluxes are identical (in the continuous formulation) to the convergence of advective fluxes.

Proposer: Martin Juckes

Proposed Date: June 25, 2018

Comments: CMIP6 - OMIP. Amend expressed_as_heat_content definition.

CF mailing list link: tendency_of_sea_water_conservative_temperature_expressed_as_heat_content units

Units: W m-2 (UFAA)

Updated term description

The phrase "tendency_of_X" means derivative of X with respect to time. The phrase "expressed_as_heat_content" means that this quantity is calculated as the specific heat capacity times density of sea water multiplied by the potential temperature of the sea water in the grid cell and integrated over depth. If used for a layer heat content, coordinate bounds should be used to define the extent of the layers. If no coordinate bounds are specified, it is assumed that the integral is calculated over the entire vertical extent of the medium, e.g, if the medium is sea water the integral is assumed to be calculated over the full depth of the ocean. Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized submesoscale eddy advection occurs on a spatial scale of the order of 1 km horizontally. Reference: James C. McWilliams 2016, Submesoscale currents in the ocean, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, volume 472, issue 2189. DOI: 10.1098/rspa.2016.0117. There are also standard names for parameterized_mesoscale_eddy_advection which, along with parameterized_submesoscale_eddy_advection, contributes to the total parameterized eddy advection. Additionally, when the parameterized advective process is represented in the model as a skew-diffusion rather than an advection, then the parameterized skew diffusion should be included in this diagnostic. The convergence of a skew-flux is identical (in the continuous formulation) to the convergence of an advective flux, making their tendencies the same.

Proposer: Martin Juckes

Proposed Date: June 25, 2018

Comments: CMIP6 - OMIP. Amend expressed_as_heat_content definition.

CF mailing list link: tendency_of_sea_water_conservative_temperature_expressed_as_heat_content units

Units: W m-2 (UFAA)

Updated term description

The phrase "tendency_of_X" means derivative of X with respect to time. This tendency encompasses all processes that impact on the time changes for the heat content within a grid cell. The phrase "expressed_as_heat_content" means that this quantity is calculated as the specific heat capacity times density of sea water multiplied by the conservative temperature of the sea water in the grid cell and integrated over depth. If used for a layer heat content, coordinate bounds should be used to define the extent of the layers. If no coordinate bounds are specified, it is assumed that the integral is calculated over the entire vertical extent of the medium, e.g, if the medium is sea water the integral is assumed to be calculated over the full depth of the ocean. Conservative Temperature is defined as part of the Thermodynamic Equation of Seawater 2010 (TEOS-10) which was adopted in 2010 by the International Oceanographic Commission (IOC). Conservative Temperature is specific potential enthalpy (which has the standard name sea_water_specific_potential_enthalpy) divided by a fixed value of the specific heat capacity of sea water, namely cp_0 = 3991.86795711963 J kg-1 K-1. Conservative Temperature is a more accurate measure of the "heat content" of sea water, by a factor of one hundred, than is potential temperature. Because of this, it can be regarded as being proportional to the heat content of sea water per unit mass. Reference: www.teos-10.org; McDougall, 2003 doi: 10.1175/1520-0485(2003)033<0945:PEACOV>2.0.CO;2.

Proposer: Martin Juckes

Proposed Date: June 25, 2018

Comments: CMIP6 - OMIP. Amend expressed_as_heat_content definition.

CF mailing list link: tendency_of_sea_water_conservative_temperature_expressed_as_heat_content units

Units: W m-2 (UFAA)

Updated term description

The phrase "tendency_of_X" means derivative of X with respect to time. The phrase "expressed_as_heat_content" means that this quantity is calculated as the specific heat capacity times density of sea water multiplied by the conservative temperature of the sea water in the grid cell and integrated over depth. If used for a layer heat content, coordinate bounds should be used to define the extent of the layers. If no coordinate bounds are specified, it is assumed that the integral is calculated over the entire vertical extent of the medium, e.g, if the medium is sea water the integral is assumed to be calculated over the full depth of the ocean. Conservative Temperature is defined as part of the Thermodynamic Equation of Seawater 2010 (TEOS-10) which was adopted in 2010 by the International Oceanographic Commission (IOC). Conservative Temperature is specific potential enthalpy (which has the standard name sea_water_specific_potential_enthalpy) divided by a fixed value of the specific heat capacity of sea water, namely cp_0 = 3991.86795711963 J kg-1 K-1. Conservative Temperature is a more accurate measure of the "heat content" of sea water, by a factor of one hundred, than is potential temperature. Because of this, it can be regarded as being proportional to the heat content of sea water per unit mass. Reference: www.teos-10.org; McDougall, 2003 doi: 10.1175/1520-0485(2003)033<0945:PEACOV>2.0.CO;2. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized eddy advection can be represented on various spatial scales and there are standard names for parameterized_mesoscale_eddy_advection and parameterized_submesoscale_eddy_advection which both contribute to the total parameterized eddy advection. Additionally, when the parameterized advective process is represented in the model as a skew-diffusion rather than an advection, then the parameterized skew diffusion should be included in this diagnostic. The convergence of a skew-flux is identical (in the continuous formulation) to the convergence of an advective flux, making their tendencies the same.

Proposer: Martin Juckes

Proposed Date: June 25, 2018

Comments: CMIP6 - OMIP. Amend expressed_as_heat_content definition.

CF mailing list link: tendency_of_sea_water_conservative_temperature_expressed_as_heat_content units

Units: W m-2 (UFAA)

Updated term description

The phrase "tendency_of_X" means derivative of X with respect to time. The phrase "expressed_as_heat_content" means that this quantity is calculated as the specific heat capacity times density of sea water multiplied by the conservative temperature of the sea water in the grid cell and integrated over depth. If used for a layer heat content, coordinate bounds should be used to define the extent of the layers. If no coordinate bounds are specified, it is assumed that the integral is calculated over the entire vertical extent of the medium, e.g, if the medium is sea water the integral is assumed to be calculated over the full depth of the ocean. Conservative Temperature is defined as part of the Thermodynamic Equation of Seawater 2010 (TEOS-10) which was adopted in 2010 by the International Oceanographic Commission (IOC). Conservative Temperature is specific potential enthalpy (which has the standard name sea_water_specific_potential_enthalpy) divided by a fixed value of the specific heat capacity of sea water, namely cp_0 = 3991.86795711963 J kg-1 K-1. Conservative Temperature is a more accurate measure of the "heat content" of sea water, by a factor of one hundred, than is potential temperature. Because of this, it can be regarded as being proportional to the heat content of sea water per unit mass. Reference: www.teos-10.org; McDougall, 2003 doi: 10.1175/1520-0485(2003)033<0945:PEACOV>2.0.CO;2. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized mesoscale eddy diffusive processes include diffusion along neutral directions in the interior of the ocean and horizontal diffusion in the surface boundary layer. The processes occur on a spatial scale of many tens of kilometres and an evolutionary time of weeks. The phrase "expressed_as_heat_content" means that this quantity is calculated as the specific heat capacity times density of sea water multiplied by the conservative temperature of the sea water in the grid cell.

Proposer: Martin Juckes

Proposed Date: June 25, 2018

Comments: CMIP6 - OMIP. Amend expressed_as_heat_content definition.

CF mailing list link: tendency_of_sea_water_conservative_temperature_expressed_as_heat_content units

Units: W m-2 (UFAA)

Updated term description

The phrase "tendency_of_X" means derivative of X with respect to time. The phrase "expressed_as_heat_content" means that this quantity is calculated as the specific heat capacity times density of sea water multiplied by the conservative temperature of the sea water in the grid cell and integrated over depth. If used for a layer heat content, coordinate bounds should be used to define the extent of the layers. If no coordinate bounds are specified, it is assumed that the integral is calculated over the entire vertical extent of the medium, e.g, if the medium is sea water the integral is assumed to be calculated over the full depth of the ocean. Conservative Temperature is defined as part of the Thermodynamic Equation of Seawater 2010 (TEOS-10) which was adopted in 2010 by the International Oceanographic Commission (IOC). Conservative Temperature is specific potential enthalpy (which has the standard name sea_water_specific_potential_enthalpy) divided by a fixed value of the specific heat capacity of sea water, namely cp_0 = 3991.86795711963 J kg-1 K-1. Conservative Temperature is a more accurate measure of the "heat content" of sea water, by a factor of one hundred, than is potential temperature. Because of this, it can be regarded as being proportional to the heat content of sea water per unit mass. Reference: www.teos-10.org; McDougall, 2003 doi: 10.1175/1520-0485(2003)033<0945:PEACOV>2.0.CO;2. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Eddy dianeutral mixing" means dianeutral mixing, i.e. mixing across neutral directions caused by the unresolved turbulent motion of eddies of all types (e.g., breaking gravity waves, boundary layer turbulence, etc.).

Proposer: Martin Juckes

Proposed Date: June 25, 2018

Comments: CMIP6 - OMIP. Amend expressed_as_heat_content definition.

CF mailing list link: tendency_of_sea_water_conservative_temperature_expressed_as_heat_content units

Units: W m-2 (UFAA)

Updated term description

The phrase "tendency_of_X" means derivative of X with respect to time. The phrase "expressed_as_heat_content" means that this quantity is calculated as the specific heat capacity times density of sea water multiplied by the potential temperature of the sea water in the grid cell and integrated over depth. If used for a layer heat content, coordinate bounds should be used to define the extent of the layers. If no coordinate bounds are specified, it is assumed that the integral is calculated over the entire vertical extent of the medium, e.g, if the medium is sea water the integral is assumed to be calculated over the full depth of the ocean. Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized eddy advection can be represented on various spatial scales and there are standard names for parameterized_mesoscale_eddy_advection and parameterized_submesoscale_eddy_advection which both contribute to the total parameterized eddy advection. Additionally, when the parameterized advective process is represented in the model as a skew-diffusion rather than an advection, then the parameterized skew diffusion should be included in this diagnostic. The convergence of a skew-flux is identical (in the continuous formulation) to the convergence of an advective flux, making their tendencies the same.

Proposer: Martin Juckes

Proposed Date: June 25, 2018

Comments: CMIP6 - OMIP. Amend expressed_as_heat_content definition.

CF mailing list link: tendency_of_sea_water_conservative_temperature_expressed_as_heat_content units

Units: W m-2 (UFAA)

Updated term description

The phrase "tendency_of_X" means derivative of X with respect to time. The phrase "expressed_as_heat_content" means that this quantity is calculated as the specific heat capacity times density of sea water multiplied by the potential temperature of the sea water in the grid cell and integrated over depth. If used for a layer heat content, coordinate bounds should be used to define the extent of the layers. If no coordinate bounds are specified, it is assumed that the integral is calculated over the entire vertical extent of the medium, e.g, if the medium is sea water the integral is assumed to be calculated over the full depth of the ocean. Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. The phrase "residual_mean_advection" refers to the sum of the model's resolved advective transport plus any parameterized advective transport. Parameterized advective transport includes processes such as parameterized mesoscale and submesoscale transport, as well as any other advectively parameterized transport. When the parameterized advective transport is represented in the model as a skew-diffusion rather than an advection, then the parameterized skew diffusion should be included in this diagnostic, since the convergence of skew-fluxes are identical (in the continuous formulation) to the convergence of advective fluxes.

Proposer: Martin Juckes

Proposed Date: June 25, 2018

Comments: CMIP6 - OMIP. Don't describe expressed_as_heat_content names as integrals - put it in the definition.

CF mailing list link: tendency_of_sea_water_conservative_temperature_expressed_as_heat_content units

Units: J m-2 (JMSQ)

The quantity with standard name sea_ice_temperature_expressed_as_heat_content is calculated relative to the heat content of ice at zero degrees Celsius, which is assumed to have a heat content of zero Joules. The phrase "expressed_as_heat_content" means that this quantity is calculated as the specific heat capacity times density of sea ice multiplied by the temperature of the sea ice in the grid cell and integrated over depth. If used for a layer heat content, coordinate bounds should be used to define the extent of the layers. If no coordinate bounds are specified, it is assumed that the integral is calculated over the entire vertical extent of the medium, e.g, if the medium is sea ice the integral is assumed to be calculated over the full depth of the ice. "Sea ice" means all ice floating in the sea which has formed from freezing sea water, rather than by other processes such as calving of land ice to form icebergs.

Proposer: Martin Juckes

Proposed Date: June 25, 2018

Comments: CMIP6 - OMIP. Don't describe expressed_as_heat_content names as integrals - put it in the definition.

CF mailing list link: tendency_of_sea_water_conservative_temperature_expressed_as_heat_content units

Units: J m-2 (JMSQ)

The phrase "expressed_as_heat_content" means that this quantity is calculated as the specific heat capacity times density of sea water multiplied by the potential temperature of the sea water in the grid cell and integrated over depth. If used for a layer heat content, coordinate bounds should be used to define the extent of the layers. If no coordinate bounds are specified, it is assumed that the integral is calculated over the entire vertical extent of the medium, e.g, if the medium is sea water the integral is assumed to be calculated over the full depth of the ocean. Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure.

Proposer: Martin Juckes

Proposed Date: June 25, 2018

Comments: CMIP6 - OMIP. Amend expressed_as_heat_content definition.

CF mailing list link: tendency_of_sea_water_conservative_temperature_expressed_as_heat_content units

Units: W m-2 (UFAA)

Updated term description

The phrase "tendency_of_X" means derivative of X with respect to time. The phrase "expressed_as_heat_content" means that this quantity is calculated as the specific heat capacity times density of sea water multiplied by the potential temperature of the sea water in the grid cell and integrated over depth. If used for a layer heat content, coordinate bounds should be used to define the extent of the layers. If no coordinate bounds are specified, it is assumed that the integral is calculated over the entire vertical extent of the medium, e.g, if the medium is sea water the integral is assumed to be calculated over the full depth of the ocean. Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized mesoscale eddy diffusive processes include diffusion along neutral directions in the interior of the ocean and horizontal diffusion in the surface boundary layer. The processes occur on a spatial scale of many tens of kilometres and an evolutionary time of weeks.

Proposer: Martin Juckes

Proposed Date: June 25, 2018

Comments: CMIP6 - OMIP. Amend expressed_as_heat_content definition.

CF mailing list link: tendency_of_sea_water_conservative_temperature_expressed_as_heat_content units

Units: W m-2 (UFAA)

Updated term description

The phrase "tendency_of_X" means derivative of X with respect to time. The phrase "expressed_as_heat_content" means that this quantity is calculated as the specific heat capacity times density of sea water multiplied by the conservative temperature of the sea water in the grid cell and integrated over depth. If used for a layer heat content, coordinate bounds should be used to define the extent of the layers. If no coordinate bounds are specified, it is assumed that the integral is calculated over the entire vertical extent of the medium, e.g, if the medium is sea water the integral is assumed to be calculated over the full depth of the ocean. Conservative Temperature is defined as part of the Thermodynamic Equation of Seawater 2010 (TEOS-10) which was adopted in 2010 by the International Oceanographic Commission (IOC). Conservative Temperature is specific potential enthalpy (which has the standard name sea_water_specific_potential_enthalpy) divided by a fixed value of the specific heat capacity of sea water, namely cp_0 = 3991.86795711963 J kg-1 K-1. Conservative Temperature is a more accurate measure of the "heat content" of sea water, by a factor of one hundred, than is potential temperature. Because of this, it can be regarded as being proportional to the heat content of sea water per unit mass. Reference: www.teos-10.org; McDougall, 2003 doi: 10.1175/1520-0485(2003)033<0945:PEACOV>2.0.CO;2. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized mesoscale eddy advection occurs on a spatial scale of many tens of kilometres and an evolutionary time of weeks. Reference: James C. McWilliams 2016, Submesoscale currents in the ocean, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, volume 472, issue 2189. DOI: 10.1098/rspa.2016.0117. Parameterized mesoscale eddy advection is represented in ocean models using schemes such as the Gent-McWilliams scheme. There are also standard names for parameterized_submesoscale_eddy_advection which, along with parameterized_mesoscale_eddy_advection, contributes to the total parameterized eddy advection. Additionally, when the parameterized advective process is represented in the model as a skew-diffusion rather than an advection, then the parameterized skew diffusion should be included in this diagnostic. The convergence of a skew-flux is identical (in the continuous formulation) to the convergence of an advective flux, making their tendencies the same.

Proposer: Martin Juckes

Proposed Date: March 27, 2018

Comments: CMIP6 - OMIP. Make alias for consistency with isotope discussion.

CF mailing list link:

Units: kg m-2 s-1 (KSP2)

The surface called "surface" means the lower boundary of the atmosphere. "Downward" indicates a vector component which is positive when directed downward (negative upward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. In ocean biogeochemistry models, an "abiotic analogue" is used to simulate the effect on a modelled variable when biological effects on ocean carbon concentration and alkalinity are ignored. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. "C" means the element carbon and "14C" is the radioactive isotope "carbon-14", having six protons and eight neutrons and used in radiocarbon dating.

Proposer: Martin Juckes

Proposed Date: March 27, 2018

Comments: CMIP6 - OMIP. Make alias for consistency with isotope discussion.

CF mailing list link:

Units: kg m-2 s-1 (KSP2)

The surface called "surface" means the lower boundary of the atmosphere. "Downward" indicates a vector component which is positive when directed downward (negative upward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. In ocean biogeochemistry models, an "abiotic analogue" is used to simulate the effect on a modelled variable when biological effects on ocean carbon concentration and alkalinity are ignored. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. "C" means the element carbon and "13C" is the stable isotope "carbon-13", having six protons and seven neutrons.

Proposer: Martin Juckes

Proposed Date: March 27, 2018

Comments: CMIP6 - OMIP. Make alias for consistency with isotope discussion.

CF mailing list link:

Units: mol m-3 (MLM3)

Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". "Dissolved inorganic carbon" describes a family of chemical species in solution, including carbon dioxide, carbonic acid and the carbonate and bicarbonate anions. "Dissolved inorganic carbon" is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. "C" means the element carbon and "13C" is the stable isotope "carbon-13", having six protons and seven neutrons.

Proposer: Martin Juckes

Proposed Date: March 27, 2018

Comments: CMIP6 - OMIP. Make alias for consistency with isotope discussion.

CF mailing list link:

Units: mol m-3 (MLM3)

Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". "Dissolved inorganic carbon" describes a family of chemical species in solution, including carbon dioxide, carbonic acid and the carbonate and bicarbonate anions. "Dissolved inorganic carbon" is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. "C" means the element carbon and "14C" is the radioactive isotope "carbon-14", having six protons and eight neutrons and used in radiocarbon dating.

Proposer: Paul Durack

Proposed Date: March 19, 2018

Comments: CMIP6 - OMIP

CF mailing list link:

Units: 1e-6 (UUUU)

New Term

The phrase "square_of_X" means X*X. Sea surface salinity is the salt concentration of sea water close to the sea surface, often on the Practical Salinity Scale of 1978. However, the unqualified term 'salinity' is generic and does not necessarily imply any particular method of calculation. The units of salinity are dimensionless and the units attribute should normally be given as 1e-3 or 0.001 i.e. parts per thousand. Sea surface salinity is often abbreviated as "SSS". For the salinity of sea water at a particular depth or layer, a data variable of "sea_water_salinity" or one of the more precisely defined salinities should be used with a vertical coordinate axis. There are standard names for the precisely defined salinity quantities: sea_water_knudsen_salinity, S_K (used for salinity observations between 1901 and 1966), sea_water_cox_salinity, S_C (used for salinity observations between 1967 and 1977), sea_water_practical_salinity, S_P (used for salinity observations from 1978 to the present day), sea_water_absolute_salinity, S_A, sea_water_preformed_salinity, S_*, and sea_water_reference_salinity. Practical Salinity is reported on the Practical Salinity Scale of 1978 (PSS-78), and is usually based on the electrical conductivity of sea water in observations since the 1960s. Conversion of data between the observed scales follows: S_P = (S_K - 0.03) * (1.80655 / 1.805) and S_P = S_C, however the accuracy of the latter is dependent on whether chlorinity or conductivity was used to determine the S_C value, with this inconsistency driving the development of PSS-78. The more precise standard names should be used where appropriate for both modelled and observed salinities. In particular, the use of sea_water_salinity to describe salinity observations made from 1978 onwards is now deprecated in favor of the term sea_water_practical_salinity which is the salinity quantity stored by national data centers for post-1978 observations. The only exception to this is where the observed salinities are definitely known not to be recorded on the Practical Salinity Scale. The unit "parts per thousand" was used for sea_water_knudsen_salinity and sea_water_cox_salinity.

Proposer: Alison Pamment

Proposed Date: Jan. 17, 2018

Comments: CMIP6 - OMIP. Update definition to change "bolus" to "parameterized eddy".

CF mailing list link: New standard names for OMIP: physics

Units: kg s-1 (KGPS)

Updated term description

"y" indicates a vector component along the grid y-axis, positive with increasing y. In contrast to the quantity with standard name ocean_meridional_overturning_streamfunction, this quantity includes all physical processes, resolved or parameterized, that impact mass/volume transport. Thus it includes contributions from the parameterized eddy velocity.

Proposer: Alison Pamment

Proposed Date: Jan. 17, 2018

Comments: CMIP6 - OMIP. Update definition to change "bolus" to "parameterized eddy".

CF mailing list link: New standard names for OMIP: physics

Units: kg s-1 (KGPS)

Updated term description

"Northward" indicates a vector component which is positive when directed northward (negative southward). "Salt transport" means the mass of salt being transported. Northward transport by (meridional) overturning is geometrically defined as being the part due to the vertical integral of the product of zonal means of velocity and tracer. The velocity does not include the parameterized eddy velocity. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase.

Proposer: Alison Pamment

Proposed Date: Jan. 17, 2018

Comments: CMIP6 - OMIP. Update definition to change "bolus" to "parameterized eddy".

CF mailing list link: New standard names for OMIP: physics

Units: K s-1 (KPRS)

Updated term description

"tendency_of_X" means derivative of X with respect to time. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Horizontal mixing" means any horizontal transport other than by advection and parameterized eddy advection, usually represented as horizontal diffusion in ocean models. Sea water temperature is the in situ temperature of the sea water. For observed data, depending on the period during which the observation was made, the measured in situ temperature was recorded against standard "scales". These historical scales include the International Practical Temperature Scale of 1948 (IPTS-48; 1948-1967), the International Practical Temperature Scale of 1968 (IPTS-68, Barber, 1969; 1968-1989) and the International Temperature Scale of 1990 (ITS-90, Saunders 1990; 1990 onwards). Conversion of data between these scales follows t68 = t48 - (4.4 x 10e-6) * t48(100 - t - 48); t90 = 0.99976 * t68. Observations made prior to 1948 (IPTS-48) have not been documented and therefore a conversion cannot be certain. Differences between t90 and t68 can be up to 0.01 at temperatures of 40 C and above; differences of 0.002-0.007 occur across the standard range of ocean temperatures (-10 - 30 C). The International Equation of State of Seawater 1980 (EOS-80, UNESCO, 1981) and the Practical Salinity Scale (PSS-78) were both based on IPTS-68, while the Thermodynamic Equation of Seawater 2010 (TEOS-10) is based on ITS-90. References: Barber, 1969, doi: 10.1088/0026-1394/5/2/001; UNESCO, 1981; Saunders, 1990, WOCE Newsletter, 10, September 1990.

Proposer: Alison Pamment

Proposed Date: Jan. 17, 2018

Comments: CMIP6 - OMIP. Update definition to change "bolus" to "parameterized eddy".

CF mailing list link: New standard names for OMIP: physics

Units: K s-1 (KPRS)

Updated term description

"tendency_of_X" means derivative of X with respect to time. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Vertical mixing" means any vertical transport other than by advection and parameterized eddy advection, represented by a combination of vertical diffusion, turbulent mixing and convection in ocean models. Sea water temperature is the in situ temperature of the sea water. For observed data, depending on the period during which the observation was made, the measured in situ temperature was recorded against standard "scales". These historical scales include the International Practical Temperature Scale of 1948 (IPTS-48; 1948-1967), the International Practical Temperature Scale of 1968 (IPTS-68, Barber, 1969; 1968-1989) and the International Temperature Scale of 1990 (ITS-90, Saunders 1990; 1990 onwards). Conversion of data between these scales follows t68 = t48 - (4.4 x 10e-6) * t48(100 - t - 48); t90 = 0.99976 * t68. Observations made prior to 1948 (IPTS-48) have not been documented and therefore a conversion cannot be certain. Differences between t90 and t68 can be up to 0.01 at temperatures of 40 C and above; differences of 0.002-0.007 occur across the standard range of ocean temperatures (-10 - 30 C). The International Equation of State of Seawater 1980 (EOS-80, UNESCO, 1981) and the Practical Salinity Scale (PSS-78) were both based on IPTS-68, while the Thermodynamic Equation of Seawater 2010 (TEOS-10) is based on ITS-90. References: Barber, 1969, doi: 10.1088/0026-1394/5/2/001; UNESCO, 1981; Saunders, 1990, WOCE Newsletter, 10, September 1990.

Proposer: Alison Pamment

Proposed Date: Jan. 17, 2018

Comments: CMIP6 - OMIP. Update definition to change "bolus" to "parameterized eddy".

CF mailing list link: New standard names for OMIP: physics

Units: kg s-1 (KGPS)

Updated term description

"Northward" indicates a vector component which is positive when directed northward (negative southward). Northward transport by (meridional) overturning is geometrically defined as being the part due to the vertical integral of the product of zonal means of velocity and tracer. The velocity does not include the parameterized eddy velocity. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase.

Proposer: Alison Pamment

Proposed Date: Jan. 17, 2018

Comments: CMIP6 - OMIP. Update definition to change "bolus" to "parameterized eddy".

CF mailing list link: New standard names for OMIP: physics

Units: W (WATT)

Updated term description

"Northward" indicates a vector component which is positive when directed northward (negative southward). Northward transport by (meridional) overturning is geometrically defined as being the part due to the vertical integral of the product of zonal means of velocity and tracer. The velocity does not include the parameterized eddy velocity. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase.

Proposer: Alison Pamment

Proposed Date: Jan. 17, 2018

Comments: CMIP6 - OMIP. Update definition to change "bolus" to "parameterized eddy".

CF mailing list link: New standard names for OMIP: physics

Units: kg s-1 (KGPS)

Updated term description

"Northward" indicates a vector component which is positive when directed northward (negative southward). "Salt transport" means the mass of salt being transported. Northward transport by diffusion means the part due to horizontal or isopyncal diffusion schemes in an ocean model, but not including the parameterized eddy velocity. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase.

Proposer: Alison Pamment

Proposed Date: Jan. 17, 2018

Comments: CMIP6 - OMIP. Update definition to change "bolus" to "parameterized eddy".

CF mailing list link: New standard names for OMIP: physics

Units: m3 s-1 (CMPS)

Updated term description

The ocean meridional overturning streamfunction should not include not include the parameterized eddy advection velocity.

Proposer: Alison Pamment

Proposed Date: Jan. 17, 2018

Comments: CMIP6 - OMIP. Update definition to change "bolus" to "parameterized eddy".

CF mailing list link: New standard names for OMIP: physics

Units: W (WATT)

Updated term description

"Northward" indicates a vector component which is positive when directed northward (negative southward). Northward transport by the ocean gyre is geometrically defined as being the part due to the vertical integral of the product of deviations of velocity and tracer from their zonal means. The velocity does not include the parameterized eddy velocity. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase.

Proposer: Alison Pamment

Proposed Date: Jan. 17, 2018

Comments: CMIP6 - OMIP. Update definition to change "bolus" to "parameterized eddy".

CF mailing list link: New standard names for OMIP: physics

Units: kg s-1 (KGPS)

Updated term description

"Northward" indicates a vector component which is positive when directed northward (negative southward). "Salt transport" means the mass of salt being transported. Northward transport by the ocean gyre is geometrically defined as being the part due to the vertical integral of the product of deviations of velocity and tracer from their zonal means. The velocity does not include the parameterized eddy velocity. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase.

Proposer: Alison Pamment

Proposed Date: Jan. 17, 2018

Comments: CMIP6 - OMIP. Update definition to change "bolus" to "parameterized eddy".

CF mailing list link: New standard names for OMIP: physics

Units: kg s-1 (KGPS)

Updated term description

"Northward" indicates a vector component which is positive when directed northward (negative southward). Northward transport by diffusion means the part due to horizontal or isopyncal diffusion schemes in an ocean model, but not including the parameterized eddy velocity. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase.

Proposer: Alison Pamment

Proposed Date: Jan. 17, 2018

Comments: CMIP6 - OMIP. Update definition to change "bolus" to "parameterized eddy".

CF mailing list link: New standard names for OMIP: physics

Units: 1e-3 s-1 (PRSC)

Updated term description

"tendency_of_X" means derivative of X with respect to time. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Horizontal mixing" means any horizontal transport other than by advection and parameterized eddy advection, usually represented as horizontal diffusion in ocean models. Sea water salinity is the salt content of sea water, often on the Practical Salinity Scale of 1978. However, the unqualified term 'salinity' is generic and does not necessarily imply any particular method of calculation. The units of salinity are dimensionless and normally given as 1e-3 or 0.001 i.e. parts per thousand. There are standard names for the more precisely defined salinity quantities: sea_water_knudsen_salinity, S_K (used for salinity observations between 1901 and 1966), sea_water_cox_salinity, S_C (used for salinity observations between 1967 and 1977), sea_water_practical_salinity, S_P (used for salinity observations from 1978 to the present day), sea_water_absolute_salinity, S_A, sea_water_preformed_salinity, S_*, and sea_water_reference_salinity. Practical Salinity is reported on the Practical Salinity Scale of 1978 (PSS-78), and is usually based on the electrical conductivity of sea water in observations since the 1960s. Conversion of data between the observed scales follows: S_P = (S_K - 0.03) * (1.80655 / 1.805) and S_P = S_C, however the accuracy of the latter is dependent on whether chlorinity or conductivity was used to determine the S_C value, with this inconsistency driving the development of PSS-78. The more precise standard names should be used where appropriate for both modelled and observed salinities. In particular, the use of sea_water_salinity to describe salinity observations made from 1978 onwards is now deprecated in favor of the term sea_water_practical_salinity which is the salinity quantity stored by national data centers for post-1978 observations. The only exception to this is where the observed salinities are definitely known not to be recorded on the Practical Salinity Scale. The unit "parts per thousand" was used for sea_water_knudsen_salinity and sea_water_cox_salinity.

Proposer: Alison Pamment

Proposed Date: Jan. 17, 2018

Comments: CMIP6 - OMIP. Update definition to change "bolus" to "parameterized eddy".

CF mailing list link: New standard names for OMIP: physics

Units: 1e-3 s-1 (PRSC)

Updated term description

"tendency_of_X" means derivative of X with respect to time. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Vertical mixing" means any vertical transport other than by advection and parameterized eddy advection, represented by a combination of vertical diffusion, turbulent mixing and convection in ocean models. Sea water salinity is the salt content of sea water, often on the Practical Salinity Scale of 1978. However, the unqualified term 'salinity' is generic and does not necessarily imply any particular method of calculation. The units of salinity are dimensionless and normally given as 1e-3 or 0.001 i.e. parts per thousand. There are standard names for the more precisely defined salinity quantities: sea_water_knudsen_salinity, S_K (used for salinity observations between 1901 and 1966), sea_water_cox_salinity, S_C (used for salinity observations between 1967 and 1977), sea_water_practical_salinity, S_P (used for salinity observations from 1978 to the present day), sea_water_absolute_salinity, S_A, sea_water_preformed_salinity, S_*, and sea_water_reference_salinity. Practical Salinity is reported on the Practical Salinity Scale of 1978 (PSS-78), and is usually based on the electrical conductivity of sea water in observations since the 1960s. Conversion of data between the observed scales follows: S_P = (S_K - 0.03) * (1.80655 / 1.805) and S_P = S_C, however the accuracy of the latter is dependent on whether chlorinity or conductivity was used to determine the S_C value, with this inconsistency driving the development of PSS-78. The more precise standard names should be used where appropriate for both modelled and observed salinities. In particular, the use of sea_water_salinity to describe salinity observations made from 1978 onwards is now deprecated in favor of the term sea_water_practical_salinity which is the salinity quantity stored by national data centers for post-1978 observations. The only exception to this is where the observed salinities are definitely known not to be recorded on the Practical Salinity Scale. The unit "parts per thousand" was used for sea_water_knudsen_salinity and sea_water_cox_salinity.

Proposer: Alison Pamment

Proposed Date: Jan. 17, 2018

Comments: CMIP6 - OMIP. Update definition to change "bolus" to "parameterized eddy".

CF mailing list link: New standard names for OMIP: physics

Units: kg s-1 (KGPS)

Updated term description

"Northward" indicates a vector component which is positive when directed northward (negative southward). Northward transport by the ocean gyre is geometrically defined as being the part due to the vertical integral of the product of deviations of velocity and tracer from their zonal means. The velocity does not include the parameterized eddy velocity. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase.

Proposer: Alison Pamment

Proposed Date: Jan. 17, 2018

Comments: CMIP6 - OMIP. Update definition to change "bolus" to "parameterized eddy".

CF mailing list link: New standard names for OMIP: physics

Units: kg s-1 (KGPS)

Updated term description

In contrast to the quantity with standard name ocean_meridional_overturning_streamfunction, this quantity includes all physical processes, resolved or parameterized, that impact mass/volume transport. Thus it includes contributions from the parameterized eddy velocity.

Proposer: Alison Pamment

Proposed Date: Jan. 17, 2018

Comments: CMIP6 - OMIP. Update definition to change "bolus" to "parameterized eddy".

CF mailing list link: New standard names for OMIP: physics

Units: W (WATT)

Updated term description

"Northward" indicates a vector component which is positive when directed northward (negative southward). Northward transport by diffusion means the part due to horizontal or isopyncal diffusion schemes in an ocean model, but not including the parameterized eddy velocity. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase.

Proposer: Alison Pamment

Proposed Date: Nov. 30, 2017

Comments: CMIP6 - OMIP. Remove erroneous sentence from definition re. 'mesoscale_eddy_advection'.

CF mailing list link:

Units: W (WATT)

Updated term description

"Northward" indicates a vector component which is positive when directed northward (negative southward). The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized eddy advection can be represented on various spatial scales and there are standard names for parameterized_mesoscale_eddy_advection and parameterized_submesoscale_eddy_advection which both contribute to the total parameterized eddy advection.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. "Bolus advection" is now usually called "parameterized eddy advection" in ocean models.

CF mailing list link: New standard names for OMIP: physics

Units: W m-2 (UFAA)

"tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The "ocean content" of a quantity refers to the vertical integral from the surface to the bottom of the ocean. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized eddy advection can be represented on various spatial scales and there are standard names for parameterized_mesoscale_eddy_advection and parameterized_submesoscale_eddy_advection which both contribute to the total parameterized eddy advection.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. "Bolus advection" is now usually called "parameterized eddy advection" in ocean models.

CF mailing list link: New standard names for OMIP: physics

Units: kg s-1 (KGPS)

"y" indicates a vector component along the grid y-axis, positive with increasing y. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized eddy advection can be represented on various spatial scales and there are standard names for parameterized_mesoscale_eddy_advection and parameterized_submesoscale_eddy_advection which both contribute to the total parameterized eddy advection.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. "Bolus advection" is now usually called "parameterized eddy advection" in ocean models.

CF mailing list link: New standard names for OMIP: physics

Units: m s-1 (UVAA)

A velocity is a vector quantity. "x" indicates a vector component along the grid x-axis, positive with increasing x. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized mesoscale eddies occur on a spatial scale of many tens of kilometres and an evolutionary time of weeks. Reference: James C. McWilliams 2016, Submesoscale currents in the ocean, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, volume 472, issue 2189. DOI: 10.1098/rspa.2016.0117. Parameterized mesoscale eddies are represented in ocean models using schemes such as the Gent-McWilliams scheme. sea_water_x_velocity_due_to_parameterized_mesoscale_eddies is used in some parameterisations of lateral diffusion in the ocean.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. "Bolus advection" is now usually called "parameterized eddy advection" in ocean models.

CF mailing list link: New standard names for OMIP: physics

Units: kg s-1 (KGPS)

"y" indicates a vector component along the grid y-axis, positive with increasing y. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized eddy advection can be represented on various spatial scales and there are standard names for parameterized_mesoscale_eddy_advection and parameterized_submesoscale_eddy_advection which both contribute to the total parameterized eddy advection.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. "Bolus advection" is now usually called "parameterized eddy advection" in ocean models.

CF mailing list link: New standard names for OMIP: physics

Units: m2 s-1 (SQMS)

Diffusivity is also sometimes known as the coefficient of diffusion. Diffusion occurs as a result of a gradient in the spatial distribution of mass concentration, temperature or momentum. The diffusivity may be very different in the vertical and horizontal directions. "laplacian diffusivity" means diffusivity for use with a Laplacian diffusion operator. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized mesoscale eddy advection occurs on a spatial scale of many tens of kilometres and an evolutionary time of weeks. Reference: James C. McWilliams 2016, Submesoscale currents in the ocean, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, volume 472, issue 2189. DOI: 10.1098/rspa.2016.0117. Parameterized mesoscale eddy advection is represented in ocean models using schemes such as the Gent-McWilliams scheme. There are also standard names for parameterized_submesoscale_eddy_advection which, along with parameterized_mesoscale_eddy_advection, contributes to the total parameterized eddy advection.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. "Bolus advection" is now usually called "parameterized eddy advection" in ocean models.

CF mailing list link: New standard names for OMIP: physics

Units: K s-1 (KPRS)

"tendency_of_X" means derivative of X with respect to time. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized eddy advection can be represented on various spatial scales and there are standard names for parameterized_mesoscale_eddy_advection and parameterized_submesoscale_eddy_advection which both contribute to the total parameterized eddy advection. Sea water temperature is the in situ temperature of the sea water. For observed data, depending on the period during which the observation was made, the measured in situ temperature was recorded against standard "scales". These historical scales include the International Practical Temperature Scale of 1948 (IPTS-48; 1948-1967), the International Practical Temperature Scale of 1968 (IPTS-68, Barber, 1969; 1968-1989) and the International Temperature Scale of 1990 (ITS-90, Saunders 1990; 1990 onwards). Conversion of data between these scales follows t68 = t48 - (4.4 x 10e-6) * t48(100 - t - 48); t90 = 0.99976 * t68. Observations made prior to 1948 (IPTS-48) have not been documented and therefore a conversion cannot be certain. Differences between t90 and t68 can be up to 0.01 at temperatures of 40 C and above; differences of 0.002-0.007 occur across the standard range of ocean temperatures (-10 - 30 C). The International Equation of State of Seawater 1980 (EOS-80, UNESCO, 1981) and the Practical Salinity Scale (PSS-78) were both based on IPTS-68, while the Thermodynamic Equation of Seawater 2010 (TEOS-10) is based on ITS-90. References: Barber, 1969, doi: 10.1088/0026-1394/5/2/001; UNESCO, 1981; Saunders, 1990, WOCE Newsletter, 10, September 1990.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. "Bolus advection" is now usually called "parameterized eddy advection" in ocean models.

CF mailing list link: New standard names for OMIP: physics

Units: W (WATT)

"x" indicates a vector component along the grid x-axis, positive with increasing x. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized eddy advection can be represented on various spatial scales and there are standard names for parameterized_mesoscale_eddy_advection and parameterized_submesoscale_eddy_advection which both contribute to the total parameterized eddy advection.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. "Bolus advection" is now usually called "parameterized eddy advection" in ocean models.

CF mailing list link: New standard names for OMIP: physics

Units: m4 s-1 (M4S1)

Diffusivity is also sometimes known as the coefficient of diffusion. Diffusion occurs as a result of a gradient in the spatial distribution of mass concentration, temperature or momentum. The diffusivity may be very different in the vertical and horizontal directions. "biharmonicdiffusivity" means diffusivity for use with a biharmonic diffusion operator. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized mesoscale eddy advection occurs on a spatial scale of many tens of kilometres and an evolutionary time of weeks. Reference: James C. McWilliams 2016, Submesoscale currents in the ocean, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, volume 472, issue 2189. DOI: 10.1098/rspa.2016.0117. Parameterized mesoscale eddy advection is represented in ocean models using schemes such as the Gent-McWilliams scheme. There are also standard names for parameterized_submesoscale_eddy_advection which, along with parameterized_mesoscale_eddy_advection, contributes to the total parameterized eddy advection.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. "Bolus advection" is now usually called "parameterized eddy advection" in ocean models.

CF mailing list link: New standard names for OMIP: physics

Units: m s-1 (UVAA)

"Eastward" indicates a vector component which is positive when directed eastward (negative westward). The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized mesoscale eddies occur on a spatial scale of many tens of kilometres and an evolutionary time of weeks. Reference: James C. McWilliams 2016, Submesoscale currents in the ocean, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, volume 472, issue 2189. DOI: 10.1098/rspa.2016.0117. Parameterized mesoscale eddies are represented in ocean models using schemes such as the Gent-McWilliams scheme.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. "Bolus advection" is now usually called "parameterized eddy advection" in ocean models.

CF mailing list link: New standard names for OMIP: physics

Units: m s-1 (UVAA)

A velocity is a vector quantity. "y" indicates a vector component along the grid y-axis, positive with increasing y. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized mesoscale eddies occur on a spatial scale of many tens of kilometres and an evolutionary time of weeks. Reference: James C. McWilliams 2016, Submesoscale currents in the ocean, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, volume 472, issue 2189. DOI: 10.1098/rspa.2016.0117. Parameterized mesoscale eddies are represented in ocean models using schemes such as the Gent-McWilliams scheme. sea_water_y_velocity_due_to_parameterized_mesoscale_eddies is used in some parameterisations of lateral diffusion in the ocean.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. "Bolus advection" is now usually called "parameterized eddy advection" in ocean models.

CF mailing list link: New standard names for OMIP: physics

Units: W (WATT)

"Northward" indicates a vector component which is positive when directed northward (negative southward). The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized mesoscale eddy advection occurs on a spatial scale of many tens of kilometres and an evolutionary time of weeks. Reference: James C. McWilliams 2016, Submesoscale currents in the ocean, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, volume 472, issue 2189. DOI: 10.1098/rspa.2016.0117. Parameterized eddy advection can be represented on various spatial scales and there are standard names for parameterized_mesoscale_eddy_advection and parameterized_submesoscale_eddy_advection which both contribute to the total parameterized eddy advection.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. "Bolus advection" is now usually called "parameterized eddy advection" in ocean models.

CF mailing list link: New standard names for OMIP: physics

Units: m s-1 (UVAA)

A velocity is a vector quantity. "Upward" indicates a vector component which is positive when directed upward (negative downward). The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized mesoscale eddies occur on a spatial scale of many tens of kilometres and an evolutionary time of weeks. Reference: James C. McWilliams 2016, Submesoscale currents in the ocean, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, volume 472, issue 2189. DOI: 10.1098/rspa.2016.0117. Parameterized mesoscale eddies are represented in ocean models using schemes such as the Gent-McWilliams scheme.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. "Bolus advection" is now usually called "parameterized eddy advection" in ocean models.

CF mailing list link: New standard names for OMIP: physics

Units: W (WATT)

"y" indicates a vector component along the grid y-axis, positive with increasing y. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized eddy advection can be represented on various spatial scales and there are standard names for parameterized_mesoscale_eddy_advection and parameterized_submesoscale_eddy_advection which both contribute to the total parameterized eddy advection.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. "Bolus advection" is now usually called "parameterized eddy advection" in ocean models.

CF mailing list link: New standard names for OMIP: physics

Units: kg s-1 (KGPS)

"x" indicates a vector component along the grid x-axis, positive with increasing x. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized eddy advection can be represented on various spatial scales and there are standard names for parameterized_mesoscale_eddy_advection and parameterized_submesoscale_eddy_advection which both contribute to the total parameterized eddy advection.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. "Bolus advection" is now usually called "parameterized eddy advection" in ocean models.

CF mailing list link: New standard names for OMIP: physics

Units: kg s-1 (KGPS)

"Northward" indicates a vector component which is positive when directed northward (negative southward). The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized eddy advection can be represented on various spatial scales and there are standard names for parameterized_mesoscale_eddy_advection and parameterized_submesoscale_eddy_advection which both contribute to the total parameterized eddy advection.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. "Bolus advection" is now usually called "parameterized eddy advection" in ocean models.

CF mailing list link: New standard names for OMIP: physics

Units: kg s-1 (KGPS)

"Northward" indicates a vector component which is positive when directed northward (negative southward). The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized eddy advection can be represented on various spatial scales and there are standard names for parameterized_mesoscale_eddy_advection and parameterized_submesoscale_eddy_advection which both contribute to the total parameterized eddy advection.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. "Bolus advection" is now usually called "parameterized eddy advection" in ocean models.

CF mailing list link: New standard names for OMIP: physics

Units: kg s-1 (KGPS)

The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized eddy advection can be represented on various spatial scales and there are standard names for parameterized_mesoscale_eddy_advection and parameterized_submesoscale_eddy_advection which both contribute to the total parameterized eddy advection.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. "Bolus advection" is now usually called "parameterized eddy advection" in ocean models.

CF mailing list link: New standard names for OMIP: physics

Units: m s-1 (UVAA)

"Northward" indicates a vector component which is positive when directed northward (negative southward). The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized mesoscale eddies occur on a spatial scale of many tens of kilometres and an evolutionary time of weeks. Reference: James C. McWilliams 2016, Submesoscale currents in the ocean, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, volume 472, issue 2189. DOI: 10.1098/rspa.2016.0117. Parameterized mesoscale eddies are represented in ocean models using schemes such as the Gent-McWilliams scheme.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. "Bolus advection" is now usually called "parameterized eddy advection" in ocean models.

CF mailing list link: New standard names for OMIP: physics

Units: 1e-3 s-1 (PRSC)

"tendency_of_X" means derivative of X with respect to time. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized eddy advection can be represented on various spatial scales and there are standard names for parameterized_mesoscale_eddy_advection and parameterized_submesoscale_eddy_advection which both contribute to the total parameterized eddy advection. Sea water salinity is the salt content of sea water, often on the Practical Salinity Scale of 1978. However, the unqualified term 'salinity' is generic and does not necessarily imply any particular method of calculation. The units of salinity are dimensionless and normally given as 1e-3 or 0.001 i.e. parts per thousand. There are standard names for the more precisely defined salinity quantities: sea_water_knudsen_salinity, S_K (used for salinity observations between 1901 and 1966), sea_water_cox_salinity, S_C (used for salinity observations between 1967 and 1977), sea_water_practical_salinity, S_P (used for salinity observations from 1978 to the present day), sea_water_absolute_salinity, S_A, sea_water_preformed_salinity, S_*, and sea_water_reference_salinity. Practical Salinity is reported on the Practical Salinity Scale of 1978 (PSS-78), and is usually based on the electrical conductivity of sea water in observations since the 1960s. Conversion of data between the observed scales follows: S_P = (S_K - 0.03) * (1.80655 / 1.805) and S_P = S_C, however the accuracy of the latter is dependent on whether chlorinity or conductivity was used to determine the S_C value, with this inconsistency driving the development of PSS-78. The more precise standard names should be used where appropriate for both modelled and observed salinities. In particular, the use of sea_water_salinity to describe salinity observations made from 1978 onwards is now deprecated in favor of the term sea_water_practical_salinity which is the salinity quantity stored by national data centers for post-1978 observations. The only exception to this is where the observed salinities are definitely known not to be recorded on the Practical Salinity Scale. The unit "parts per thousand" was used for sea_water_knudsen_salinity and sea_water_cox_salinity.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. Create alias to standardize syntax in all integral names.

CF mailing list link: New standard names for OMIP: physics

Units: W s m-2 (WSMM)

The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. "wrt" means with respect to. The surface called "surface" means the lower boundary of the atmosphere. "Downward" indicates a vector component which is positive when directed downward (negative upward). Net downward radiation is the difference between radiation from above (downwelling) and radiation from below (upwelling). "longwave" means longwave radiation. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. Create alias to standardize syntax in all integral names.

CF mailing list link: New standard names for OMIP: physics

Units: W s m-2 (WSMM)

The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. "wrt" means with respect to. The surface called "surface" means the lower boundary of the atmosphere. "Downward" indicates a vector component which is positive when directed downward (negative upward). The surface sensible heat flux, also called "turbulent" heat flux, is the exchange of heat between the surface and the air by motion of air. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. Create alias to standardize syntax in all integral names.

CF mailing list link: New standard names for OMIP: physics

Units: W s m-2 (WSMM)

The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. "wrt" means with respect to. The surface called "surface" means the lower boundary of the atmosphere. "shortwave" means shortwave radiation. Downwelling radiation is radiation from above. It does not mean "net downward". Surface downwelling shortwave is the sum of direct and diffuse solar radiation incident on the surface, and is sometimes called "global radiation". When thought of as being incident on a surface, a radiative flux is sometimes called "irradiance". In addition, it is identical with the quantity measured by a cosine-collector light-meter and sometimes called "vector irradiance". In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. Create alias to standardize syntax in all integral names.

CF mailing list link: New standard names for OMIP: physics

Units: W s m-2 (WSMM)

The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. "wrt" means with respect to. The surface called "surface" means the lower boundary of the atmosphere. "Downward" indicates a vector component which is positive when directed downward (negative upward). The surface latent heat flux is the exchange of heat between the surface and the air on account of evaporation (including sublimation). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. Create alias to standardize syntax in all integral names.

CF mailing list link: New standard names for OMIP: physics

Units: Pa s (PASS)

The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. "wrt" means with respect to. The surface called "surface" means the lower boundary of the atmosphere. "Northward" indicates a vector component which is positive when directed northward (negative southward). "Downward" indicates a vector component which is positive when directed downward (negative upward). "Downward northward" indicates the ZY component of a tensor. A downward northward stress is a downward flux of northward momentum, which accelerates the lower medium northward and the upper medium southward. The surface downward stress is the wind stress on the surface.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. Create alias to standardize syntax in all integral names.

CF mailing list link: New standard names for OMIP: physics

Units: W s m-2 (WSMM)

The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. "wrt" means with respect to. "toa" means top of atmosphere. "Downward" indicates a vector component which is positive when directed downward (negative upward). Net downward radiation is the difference between radiation from above (downwelling) and radiation from below (upwelling). "Shortwave" means shortwave radiation. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. Create alias to standardize syntax in all integral names.

CF mailing list link: New standard names for OMIP: physics

Units: K m (http://vocab.ndg.nerc.ac.uk/term/P061/40/KMTX)

Updated term description

"integral_of_Y_wrt_X" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. "wrt" means with respect to. Depth is the vertical distance below the surface. Sea water temperature is the in situ temperature of the sea water. For observed data, depending on the period during which the observation was made, the measured in situ temperature was recorded against standard "scales". These historical scales include the International Practical Temperature Scale of 1948 (IPTS-48; 1948-1967), the International Practical Temperature Scale of 1968 (IPTS-68, Barber, 1969; 1968-1989) and the International Temperature Scale of 1990 (ITS-90, Saunders 1990; 1990 onwards). Conversion of data between these scales follows t68 = t48 - (4.4 x 10e-6) * t48(100 - t - 48); t90 = 0.99976 * t68. Observations made prior to 1948 (IPTS-48) have not been documented and therefore a conversion cannot be certain. Differences between t90 and t68 can be up to 0.01 at temperatures of 40 C and above; differences of 0.002-0.007 occur across the standard range of ocean temperatures (-10 - 30 C). The International Equation of State of Seawater 1980 (EOS-80, UNESCO, 1981) and the Practical Salinity Scale (PSS-78) were both based on IPTS-68, while the Thermodynamic Equation of Seawater 2010 (TEOS-10) is based on ITS-90. References: Barber, 1969, doi: 10.1088/0026-1394/5/2/001; UNESCO, 1981; Saunders, 1990, WOCE Newsletter, 10, September 1990.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. Create alias to standardize syntax in all integral names.

CF mailing list link: New standard names for OMIP: physics

Units: W s m-2 (WSMM)

The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. "wrt" means with respect to. "toa" means top of atmosphere. "Longwave" means longwave radiation. The TOA outgoing longwave flux is the upwelling thermal radiative flux, often called the "outgoing longwave radiation" or "OLR". In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. Create alias to standardize syntax in all integral names.

CF mailing list link: New standard names for OMIP: physics

Units: W s m-2 (WSMM)

The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. "wrt" means with respect to. The surface called "surface" means the lower boundary of the atmosphere. "longwave" means longwave radiation. Downwelling radiation is radiation from above. It does not mean "net downward". When thought of as being incident on a surface, a radiative flux is sometimes called "irradiance". In addition, it is identical with the quantity measured by a cosine-collector light-meter and sometimes called "vector irradiance". In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. Create alias to standardize syntax in all integral names.

CF mailing list link: New standard names for OMIP: physics

Units: W s m-2 (WSMM)

The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. "wrt" means with respect to. The surface called "surface" means the lower boundary of the atmosphere. "Downward" indicates a vector component which is positive when directed downward (negative upward). Net downward radiation is the difference between radiation from above (downwelling) and radiation from below (upwelling). "Shortwave" means shortwave radiation. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. Create alias to standardize syntax in all integral names.

CF mailing list link: New standard names for OMIP: physics

Units: m2 s-1 (SQMS)

The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". Height is the vertical distance above the surface. The phrase "product_of_X_and_Y" means X*Y. Wind is defined as a two-dimensional (horizontal) air velocity vector, with no vertical component. (Vertical motion in the atmosphere has the standard name "upward_air_velocity".) "Eastward" indicates a vector component which is positive when directed eastward (negative westward). Specific humidity is the mass fraction of water vapor in (moist) air.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. Create alias to standardize syntax in all integral names.

CF mailing list link: New standard names for OMIP: physics

Units: m2 s-1 (SQMS)

The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". Height is the vertical distance above the surface. The phrase "product_of_X_and_Y" means X*Y. Wind is defined as a two-dimensional (horizontal) air velocity vector, with no vertical component. (Vertical motion in the atmosphere has the standard name "upward_air_velocity".) "Northward" indicates a vector component which is positive when directed northward (negative southward). Specific humidity is the mass fraction of water vapor in (moist) air.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. Create alias to standardize syntax in all integral names.

CF mailing list link: New standard names for OMIP: physics

Units: J m-2 (JMSQ)

The quantity with standard name integral_wrt_depth_of_sea_ice_temperature_expressed_as_heat_content is calculated relative to the heat content of ice at zero degrees Celsius, which is assumed to have a heat content of zero Joules. The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. "wrt" means with respect to. "Content" indicates a quantity per unit area. Depth is the vertical distance below the surface.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. Create alias to standardize syntax in all integral names.

CF mailing list link: New standard names for OMIP: physics

Units: J m-2 (JMSQ)

The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. "wrt" means with respect to. "expressed_as_heat_content" means that this quantity is calculated as the (assumed constant) specific heat capacity times density of sea water multiplied by the integral, over the specified layer of the ocean, of the sea water potential temperature wrt depth. "Content" indicates a quantity per unit area. Depth is the vertical distance below the surface. Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. Create alias to standardize syntax in all integral names.

CF mailing list link: New standard names for OMIP: physics

Units: K s (KSXX)

The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. "wrt" means with respect to. Air temperature is the bulk temperature of the air, not the surface (skin) temperature. The air temperature excess is the air temperature minus the air temperature threshold, where only positive values are included in the integral. Its integral with respect to time is often called after its units of "degree-days". The air_temperature variable, which is the data variable of the integral should have a scalar coordinate variable or a size-one coordinate variable with the standard name of air_temperature_threshold, to indicate the threshold.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. Create alias to standardize syntax in all integral names.

CF mailing list link: New standard names for OMIP: physics

Units: Pa s (PASS)

The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. "wrt" means with respect to. The surface called "surface" means the lower boundary of the atmosphere. "Eastward" indicates a vector component which is positive when directed eastward (negative westward). "Downward" indicates a vector component which is positive when directed downward (negative upward). "Downward eastward" indicates the ZX component of a tensor. A downward eastward stress is a downward flux of eastward momentum, which accelerates the lower medium eastward and the upper medium westward. The surface downward stress is the wind stress on the surface.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. Create alias to standardize syntax in all integral names.

CF mailing list link: New standard names for OMIP: physics

Units: m (ULAA)

The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. "wrt" means with respect to. Depth is the vertical distance below the surface. Practical Salinity, S_P, is a determination of the salinity of sea water, based on its electrical conductance. The measured conductance, corrected for temperature and pressure, is compared to the conductance of a standard potassium chloride solution, producing a value on the Practical Salinity Scale of 1978 (PSS-78). This name should not be used to describe salinity observations made before 1978, or ones not based on conductance measurements. Conversion of Practical Salinity to other precisely defined salinity measures should use the appropriate formulas specified by TEOS-10. Other standard names for precisely defined salinity quantities are sea_water_absolute_salinity (S_A); sea_water_preformed_salinity (S_*), sea_water_reference_salinity (S_R); sea_water_cox_salinity (S_C), used for salinity observations between 1967 and 1977; and sea_water_knudsen_salinity (S_K), used for salinity observations between 1901 and 1966. Salinity quantities that do not match any of the precise definitions should be given the more general standard name of sea_water_salinity. Reference: www.teos-10.org; Lewis, 1980 doi:10.1109/JOE.1980.1145448.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. Create alias to standardize syntax in all integral names.

CF mailing list link: New standard names for OMIP: physics

Units: K m (KMTX)

The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. "wrt" means with respect to. "Layer" means any layer with upper and lower boundaries that have constant values in some vertical coordinate. There must be a vertical coordinate variable indicating the extent of the layer(s). If the layers are model layers, the vertical coordinate can be model_level_number, but it is recommended to specify a physical coordinate (in a scalar or auxiliary coordinate variable) as well. Depth is the vertical distance below the surface. Sea water temperature is the in situ temperature of the sea water. For observed data, depending on the period during which the observation was made, the measured in situ temperature was recorded against standard "scales". These historical scales include the International Practical Temperature Scale of 1948 (IPTS-48; 1948-1967), the International Practical Temperature Scale of 1968 (IPTS-68, Barber, 1969; 1968-1989) and the International Temperature Scale of 1990 (ITS-90, Saunders 1990; 1990 onwards). Conversion of data between these scales follows t68 = t48 - (4.4 x 10e-6) * t48(100 - t - 48); t90 = 0.99976 * t68. Observations made prior to 1948 (IPTS-48) have not been documented and therefore a conversion cannot be certain. Differences between t90 and t68 can be up to 0.01 at temperatures of 40 C and above; differences of 0.002-0.007 occur across the standard range of ocean temperatures (-10 - 30 C). The International Equation of State of Seawater 1980 (EOS-80, UNESCO, 1981) and the Practical Salinity Scale (PSS-78) were both based on IPTS-68, while the Thermodynamic Equation of Seawater 2010 (TEOS-10) is based on ITS-90. References: Barber, 1969, doi: 10.1088/0026-1394/5/2/001; UNESCO, 1981; Saunders, 1990, WOCE Newsletter, 10, September 1990.

Proposer: Jonathan Gregory / Stephen Griffies / Alison Pamment

Proposed Date: Oct. 12, 2017

Comments: CMIP6 - OMIP. Create alias to standardize syntax in all integral names.

CF mailing list link: New standard names for OMIP: physics

Units: K s (KSXX)

The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. "wrt" means with respect to. Air temperature is the bulk temperature of the air, not the surface (skin) temperature. The air temperature deficit is the air temperature threshold minus the air temperature, where only positive values are included in the integral. Its integral with respect to time is often called after its units of "degree-days". The air_temperature variable, which is the data variable of the integral should have a scalar coordinate variable or a size-one coordinate variable with the standard name of air_temperature_threshold, to indicate the threshold.

Proposer: Alison Pamment

Proposed Date: May 17, 2017

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: s-2 (UPSS)

Updated term description

The phrase "square_of_X" means X*X. Frequency is the number of oscillations of a wave per unit time. Brunt-Vaisala frequency is also sometimes called "buoyancy frequency" and is a measure of the vertical stratification of the medium.

Proposer: Alison Pamment

Proposed Date: May 17, 2017

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: s-1 (PRSC)

Updated term description

Frequency is the number of oscillations of a wave per unit time. Brunt-Vaisala frequency is also sometimes called "buoyancy frequency" and is a measure of the vertical stratification of the medium.

Proposer: Alison Pamment

Proposed Date: May 11, 2017

Comments: CMIP6 - OMIP Updated definition of dissolved_inorganic_phosphorus for consistency with OMIP discussion.

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 s-1 (MM3S)

Updated term description

'Mole concentration' means number of moles per unit volume, also called "molarity", and is used in the construction mole_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. "Dissolved inorganic phosphorus" means the sum of all inorganic phosphorus in solution (including phosphate, hydrogen phosphate, dihydrogen phosphate, and phosphoric acid).

Proposer: Alison Pamment

Proposed Date: May 11, 2017

Comments: CMIP6 - OMIP Updated definition of dissolved_inorganic_phosphorus for consistency with OMIP discussion.

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-2 s-1 (M2MS)

Updated term description

"Content" indicates a quantity per unit area. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. "Dissolved inorganic phosphorus" means the sum of all inorganic phosphorus in solution (including phosphate, hydrogen phosphate, dihydrogen phosphate, and phosphoric acid).

Proposer: Alison Pamment

Proposed Date: May 11, 2017

Comments: CMIP6 - OMIP Updated definition of pH to replace 'activity' with 'concentration' for consistency with OMIP discussion.

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: 1 (UUUU)

Updated term description

'sea_water_pH_reported_on_total_scale' is the measure of acidity of seawater, defined as the negative logarithm of the concentration of dissolved hydrogen ions plus bisulfate ions in a sea water medium; it can be measured or calculated; when measured the scale is defined according to a series of buffers prepared in artificial seawater containing bisulfate. The quantity may be written as pH(total) = -log([H+](free) + [HSO4-]).

Proposer: Alison Pamment

Proposed Date: May 11, 2017

Comments: CMIP6 - OMIP Updated definition of dissolved_inorganic_silicon for consistency with OMIP discussion.

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-2 s-1 (M2MS)

Updated term description

"Content" indicates a quantity per unit area. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. "Dissolved inorganic silicon" means the sum of all silicon in solution (including silicic acid and its first dissociated anion SiO(OH)3-).

Proposer: Alison Pamment

Proposed Date: May 11, 2017

Comments: CMIP6 - OMIP Removed the unnecessary occurrence of the word 'dissolved' from final sentence of definition.

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

Updated term description

Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". "Dissolved inorganic silicon" means the sum of all silicon in solution (including silicic acid and its first dissociated anion SiO(OH)3-).

Proposer: Alison Pamment

Proposed Date: May 11, 2017

Comments: CMIP6 - OMIP Updated definition of dissolved_inorganic_phosphorus for consistency with OMIP discussion.

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-2 s-1 (M2MS)

Updated term description

"Content" indicates a quantity per unit area. "tendency_of_X" means derivative of X with respect to time. "Dissolved inorganic phosphorus" means the sum of all inorganic phosphorus in solution (including phosphate, hydrogen phosphate, dihydrogen phosphate, and phosphoric acid).

Proposer: Alison Pamment

Proposed Date: May 11, 2017

Comments: CMIP6 - OMIP Removed the unnecessary occurrence of the word 'dissolved' from final sentence of definition.

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

Updated term description

Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". "Dissolved inorganic phosphorus" means the sum of all inorganic phosphorus in solution (including phosphate, hydrogen phosphate, dihydrogen phosphate, and phosphoric acid).

Proposer: Alison Pamment

Proposed Date: May 11, 2017

Comments: CMIP6 - OMIP Updated definition of dissolved_inorganic_silicon for consistency with OMIP discussion.

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-2 s-1 (M2MS)

Updated term description

"Content" indicates a quantity per unit area. "tendency_of_X" means derivative of X with respect to time. "Dissolved inorganic silicon" means the sum of all silicon in solution (including silicic acid and its first dissociated anion SiO(OH)3-).

Proposer: Alison Pamment

Proposed Date: May 11, 2017

Comments: CMIP6 - OMIP Updated definition of dissolved_inorganic_silicon for consistency with OMIP discussion.

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 s-1 (MM3S)

Updated term description

'Mole concentration' means number of moles per unit volume, also called "molarity", and is used in the construction mole_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. "Dissolved inorganic silicon" means the sum of all silicon in solution (including silicic acid and its first dissociated anion SiO(OH)3-).

Proposer: Martin Juckes and James Orr

Proposed Date: March 25, 2017

Comments: CMIP6 - OMIP

CF mailing list link: Silicate vs. dissolved inorganic silicon

Units: mol m-3 (MLM3)

Updated term description

Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". "Dissolved inorganic phosphorus" means the sum of all dissolved inorganic phosphorus in solution (including phosphate, hydrogen phosphate, dihydrogen phosphate, and phosphoric acid).

Proposer: Martin Juckes and James Orr

Proposed Date: March 25, 2017

Comments: CMIP6 - OMIP

CF mailing list link: Silicate vs. dissolved inorganic silicon

Units: mol m-3 (MLM3)

Updated term description

Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". "Dissolved inorganic silicon" means the sum of all dissolved silicon in solution (including silicic acid and its first dissociated anion SiO(OH)3-).

Proposer: Paul Durack

Proposed Date: Nov. 10, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-2 s-1 (M2MS)

New Term

"tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. "Inorganic carbon" describes a family of chemical species and is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute.

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Dec. 1, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: W m-2 (UFAA)

New Term

The phrase "tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The phrase "expressed_as_heat_content" means that this quantity is calculated as the specific heat capacity times density of sea water multiplied by the conservative temperature of the sea water in the grid cell. Conservative Temperature is defined as part of the Thermodynamic Equation of Seawater 2010 (TEOS-10) which was adopted in 2010 by the International Oceanographic Commission (IOC). Conservative Temperature is specific potential enthalpy (which has the standard name sea_water_specific_potential_enthalpy) divided by a fixed value of the specific heat capacity of sea water, namely cp_0 = 3991.86795711963 J kg-1 K-1. Conservative Temperature is a more accurate measure of the "heat content" of sea water, by a factor of one hundred, than is potential temperature. Because of this, it can be regarded as being proportional to the heat content of sea water per unit mass. Reference: www.teos-10.org; McDougall, 2003 doi: 10.1175/1520-0485(2003)033<0945:PEACOV>2.0.CO;2. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized mesoscale eddy advection occurs on a spatial scale of many tens of kilometres and an evolutionary time of weeks. Reference: James C. McWilliams 2016, Submesoscale currents in the ocean, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, volume 472, issue 2189. DOI: 10.1098/rspa.2016.0117. Parameterized mesoscale eddy advection is represented in ocean models using schemes such as the Gent-McWilliams scheme. There are also standard names for parameterized_submesoscale_eddy_advection which, along with parameterized_mesoscale_eddy_advection, contributes to the total parameterized eddy advection. Additionally, when the parameterized advective process is represented in the model as a skew-diffusion rather than an advection, then the parameterized skew diffusion should be included in this diagnostic. The convergence of a skew-flux is identical (in the continuous formulation) to the convergence of an advective flux, making their tendencies the same.

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 31, 2015

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: W m-2 (UFAA)

New Term

The phrase "tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The phrase "expressed_as_heat_content" means that this quantity is calculated as the specific heat capacity times density of sea water multiplied by the potential temperature of the sea water in the grid cell. Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized mesoscale eddy advection occurs on a spatial scale of many tens of kilometres and an evolutionary time of weeks. Reference: James C. McWilliams 2016, Submesoscale currents in the ocean, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, volume 472, issue 2189. DOI: 10.1098/rspa.2016.0117. Parameterized mesoscale eddy advection is represented in ocean models using schemes such as the Gent-McWilliams scheme. There are also standard names for parameterized_submesoscale_eddy_advection which, along with parameterized_mesoscale_eddy_advection, contributes to the total parameterized eddy advection. Additionally, when the parameterized advective process is represented in the model as a skew-diffusion rather than an advection, then the parameterized skew diffusion should be included in this diagnostic. The convergence of a skew-flux is identical (in the continuous formulation) to the convergence of an advective flux, making their tendencies the same.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-2 s-1 (M2MS)

New Term

The surface called "surface" means the lower boundary of the atmosphere. "Downward" indicates a vector component which is positive when directed downward (negative upward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The chemical formula of sulfur hexafluoride is SF6.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The chemical formula of sulfur hexafluoride is SF6.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The chemical formula for CFC12 is CF2Cl2. The IUPAC name for CFC12 is dichloro-difluoro-methane.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The chemical formula of CFC11 is CFCl3. The IUPAC name fof CFC11 is trichloro-fluoro-methane.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-2 s-1 (M2MS)

New Term

The surface called "surface" means the lower boundary of the atmosphere. "Downward" indicates a vector component which is positive when directed downward (negative upward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The chemical formula for CFC12 is CF2Cl2. The IUPAC name for CFC12 is dichloro-difluoro-methane.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-2 s-1 (M2MS)

New Term

The surface called "surface" means the lower boundary of the atmosphere. "Downward" indicates a vector component which is positive when directed downward (negative upward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The chemical formula of CFC11 is CFCl3. The IUPAC name fof CFC11 is trichloro-fluoro-methane.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-2 s-1 (M2MS)

New Term

"tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. "Organic carbon" describes a family of chemical species and is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Runoff is the liquid water which drains from land. If not specified, "runoff" refers to the sum of surface runoff and subsurface drainage.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: 1 (UUUU)

New Term

Diatoms are phytoplankton with an external skeleton made of silica. Phytoplankton are algae that grow where there is sufficient light to support photosynthesis. "Iron growth limitation" means the ratio of the growth rate of a species population in the environment (where there is a finite availability of iron) to the theoretical growth rate if there were no such limit on iron availability.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-2 s-1 (M2MS)

New Term

"tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: 1 (UUUU)

New Term

"Calcareous phytoplankton" are phytoplankton that produce calcite. Calcite is a mineral that is a polymorph of calcium carbonate. The chemical formula of calcite is CaCO3. Phytoplankton are algae that grow where there is sufficient light to support photosynthesis. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Irradiance" means the power per unit area (called radiative flux in other standard names), the area being normal to the direction of flow of the radiant energy. Solar irradiance is essential to the photosynthesis reaction and its presence promotes the growth of phytoplankton populations. "Growth limitation due to solar irradiance" means the ratio of the growth rate of a species population in the environment (where the amount of sunlight reaching a location may be limited) to the theoretical growth rate if there were no such limit on solar irradiance.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: 1 (UUUU)

New Term

In ocean modelling, diazotrophs are phytoplankton of the phylum cyanobacteria distinct from other phytoplankton groups in their ability to fix nitrogen gas in addition to nitrate and ammonium. Phytoplankton are algae that grow where there is sufficient light to support photosynthesis. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Irradiance" means the power per unit area (called radiative flux in other standard names), the area being normal to the direction of flow of the radiant energy. Solar irradiance is essential to the photosynthesis reaction and its presence promotes the growth of phytoplankton populations. "Growth limitation due to solar irradiance" means the ratio of the growth rate of a species population in the environment (where the amount of sunlight reaching a location may be limited) to the theoretical growth rate if there were no such limit on solar irradiance.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement that separate 'surface' names are not needed. A generic (3D) name for this quantity is under discussion.

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The chemical formula of the carbonate anion is CO3 with an electrical charge of minus two. Calcite is a mineral that is a polymorph of calcium carbonate. The chemical formula of calcite is CaCO3. Standard names also exist for aragonite, another polymorph of calcium carbonate.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: Pa (PASX)

New Term

The surface called "surface" means the lower boundary of the atmosphere. The chemical formula for carbon dioxide is CO2. In ocean biogeochemistry models, an "abiotic analogue" is used to simulate the effect on a modelled variable when biological effects on ocean carbon concentration and alkalinity are ignored. The partial pressure of a gaseous constituent of air is the pressure which it alone would exert with unchanged temperature and number of moles per unit volume. The partial pressure of a dissolved gas in sea water is the partial pressure in air with which it would be in equilibrium. The partial pressure difference between sea water and air is positive when the partial pressure of the dissolved gas in sea water is greater than the partial pressure in air.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mole_concentration_of_carbonate_expressed_as_carbon_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The chemical formula of the carbonate anion is CO3 with an electrical charge of minus two.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list after agreement to use existing name mole_concentration_of_carbonate_natural_analogue_expressed_as_carbon_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". In ocean biogeochemistry models, a "natural analogue" is used to simulate the effect on a modelled variable of imposing preindustrial atmospheric carbon dioxide concentrations, even when the model as a whole may be subjected to varying forcings. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The chemical formula of the carbonate anion is CO3 with an electrical charge of minus two.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mole_concentration_of_phytoplankton_expressed_as_phosphorus_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Phytoplankton are autotrophic prokaryotic or eukaryotic algae that live near the water surface where there is sufficient light to support photosynthesis. Standard names also exist for the mole concentration of a number of components that make up the total phytoplankton population, such as diatoms, diazotrophs, calcareous phytoplankton, picophytoplankton and miscellaneous phytoplankton.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Proposal added to rejected list after agreement to use existing name mole_concentration_of_carbonate_abiotic_analogue_expressed_as_carbon_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". In ocean biogeochemistry models, an "abiotic analogue" is used to simulate the effect on a modelled variable when biological effects on ocean carbon concentration and alkalinity are ignored. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The chemical formula of the carbonate anion is CO3 with an electrical charge of minus two.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: 1 (UUUU)

New Term

"Calcareous phytoplankton" are phytoplankton that produce calcite. Calcite is a mineral that is a polymorph of calcium carbonate. The chemical formula of calcite is CaCO3. Phytoplankton are algae that grow where there is sufficient light to support photosynthesis. "Nitrogen growth limitation" means the ratio of the growth rate of a species population in the environment (where there is a finite availability of nitrogen) to the theoretical growth rate if there were no such limit on nitrogen availability.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: 1 (UUUU)

New Term

Phytoplankton are algae that grow where there is sufficient light to support photosynthesis. "Miscellaneous phytoplankton" are all those phytoplankton that are not diatoms, diazotrophs, calcareous phytoplankton, picophytoplankton or other separately named components of the phytoplankton population. "Iron growth limitation" means the ratio of the growth rate of a species population in the environment (where there is a finite availability of iron) to the theoretical growth rate if there were no such limit on iron availability.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: 1 (UUUU)

New Term

Picophytoplankton are phytoplankton of less than 2 micrometers in size. Phytoplankton are algae that grow where there is sufficient light to support photosynthesis. "Iron growth limitation" means the ratio of the growth rate of a species population in the environment (where there is a finite availability of iron) to the theoretical growth rate if there were no such limit on iron availability.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: 1 (UUUU)

New Term

Phytoplankton are algae that grow where there is sufficient light to support photosynthesis. "Miscellaneous phytoplankton" are all those phytoplankton that are not diatoms, diazotrophs, calcareous phytoplankton, picophytoplankton or other separately named components of the phytoplankton population. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Irradiance" means the power per unit area (called radiative flux in other standard names), the area being normal to the direction of flow of the radiant energy. Solar irradiance is essential to the photosynthesis reaction and its presence promotes the growth of phytoplankton populations. "Growth limitation due to solar irradiance" means the ratio of the growth rate of a species population in the environment (where the amount of sunlight reaching a location may be limited) to the theoretical growth rate if there were no such limit on solar irradiance.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-2 s-1 (M2MS)

New Term

"tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. "Inorganic carbon" describes a family of chemical species and is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Runoff is the liquid water which drains from land. If not specified, "runoff" refers to the sum of surface runoff and subsurface drainage.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement that separate 'surface' names are not required. A generic (3D) name for this quantity is under discussion.

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The chemical formula of the carbonate anion is CO3 with an electrical charge of minus two. Aragonite is a mineral that is a polymorph of calcium carbonate. The chemical formula of aragonite is CaCO3. Standard names also exist for calcite, another polymorph of calcium carbonate.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: 1 (UUUU)

New Term

Picophytoplankton are phytoplankton of less than 2 micrometers in size. Phytoplankton are algae that grow where there is sufficient light to support photosynthesis. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Irradiance" means the power per unit area (called radiative flux in other standard names), the area being normal to the direction of flow of the radiant energy. Solar irradiance is essential to the photosynthesis reaction and its presence promotes the growth of phytoplankton populations. "Growth limitation due to solar irradiance" means the ratio of the growth rate of a species population in the environment (where the amount of sunlight reaching a location may be limited) to the theoretical growth rate if there were no such limit on solar irradiance.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-2 s-1 (M2MS)

New Term

"tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. "Organic carbon" describes a family of chemical species and is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Sedimentation" is the sinking of particulate matter to the floor of a body of water.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: 1 (UUUU)

New Term

"Calcareous phytoplankton" are phytoplankton that produce calcite. Calcite is a mineral that is a polymorph of calcium carbonate. The chemical formula of calcite is CaCO3. Phytoplankton are algae that grow where there is sufficient light to support photosynthesis. "Iron growth limitation" means the ratio of the growth rate of a species population in the environment (where there is a finite availability of iron) to the theoretical growth rate if there were no such limit on iron availability.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: 1 (UUUU)

New Term

Picophytoplankton are phytoplankton of less than 2 micrometers in size. Phytoplankton are algae that grow where there is sufficient light to support photosynthesis. "Nitrogen growth limitation" means the ratio of the growth rate of a species population in the environment (where there is a finite availability of nitrogen) to the theoretical growth rate if there were no such limit on nitrogen availability.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mole_concentration_of_particulate_organic_matter_expressed_as_iron_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mole_concentration_of_particulate_organic_matter_expressed_as_phosphorus_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: 1 (UUUU)

New Term

Diatoms are phytoplankton with an external skeleton made of silica. Phytoplankton are algae that grow where there is sufficient light to support photosynthesis. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Irradiance" means the power per unit area (called radiative flux in other standard names), the area being normal to the direction of flow of the radiant energy. Solar irradiance is essential to the photosynthesis reaction and its presence promotes the growth of phytoplankton populations. "Growth limitation due to solar irradiance" means the ratio of the growth rate of a species population in the environment (where the amount of sunlight reaching a location may be limited) to the theoretical growth rate if there were no such limit on solar irradiance.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: 1 (UUUU)

New Term

In ocean modelling, diazotrophs are phytoplankton of the phylum cyanobacteria distinct from other phytoplankton groups in their ability to fix nitrogen gas in addition to nitrate and ammonium. Phytoplankton are algae that grow where there is sufficient light to support photosynthesis. "Nitrogen growth limitation" means the ratio of the growth rate of a species population in the environment (where there is a finite availability of nitrogen) to the theoretical growth rate if there were no such limit on nitrogen availability.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-2 s-1 (M2MS)

New Term

"tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. "Inorganic carbon" describes a family of chemical species and is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Sedimentation" is the sinking of particulate matter to the floor of a body of water.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mole_concentration_of_dimethyl_sulfide_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The chemical formula for dimethyl sulfide is (CH3)2S. Dimethyl sulfide is sometimes referred to as DMS.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: Pa (PASX)

New Term

The surface called "surface" means the lower boundary of the atmosphere. The chemical formula for carbon dioxide is CO2. In ocean biogeochemistry models, an "abiotic analogue" is used to simulate the effect on a modelled variable when biological effects on ocean carbon concentration and alkalinity are ignored. The partial pressure of a dissolved gas in sea water is the partial pressure in air with which it would be in equilibrium. The partial pressure of a gaseous constituent of air is the pressure which it alone would exert with unchanged temperature and number of moles per unit volume.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-2 s-1 (M2MS)

New Term

"tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. "Nitrogen" summarizes all chemical species containing nitrogen atoms. The list of individual species that are included in this quantity can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mole_concentration_of_phytoplankton_expressed_as_iron_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Phytoplankton are autotrophic prokaryotic or eukaryotic algae that live near the water surface where there is sufficient light to support photosynthesis. Standard names also exist for the mole concentration of a number of components that make up the total phytoplankton population, such as diatoms, diazotrophs, calcareous phytoplankton, picophytoplankton and miscellaneous phytoplankton.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: kg m-2 (KMP2)

New Term

"Content" indicates a quantity per unit area. Organic carbon describes a family of chemical species and is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mole_concentration_of_phytoplankton_expressed_as_silicon_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Phytoplankton are autotrophic prokaryotic or eukaryotic algae that live near the water surface where there is sufficient light to support photosynthesis. Standard names also exist for the mole concentration of a number of components that make up the total phytoplankton population, such as diatoms, diazotrophs, calcareous phytoplankton, picophytoplankton and miscellaneous phytoplankton.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mole_concentration_of_phytoplankton_expressed_as_nitrogen_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Phytoplankton are autotrophic prokaryotic or eukaryotic algae that live near the water surface where there is sufficient light to support photosynthesis.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: 1 (UUUU)

New Term

Phytoplankton are algae that grow where there is sufficient light to support photosynthesis. "Miscellaneous phytoplankton" are all those phytoplankton that are not diatoms, diazotrophs, calcareous phytoplankton, picophytoplankton or other separately named components of the phytoplankton population. "Nitrogen growth limitation" means the ratio of the growth rate of a species population in the environment (where there is a finite availability of nitrogen) to the theoretical growth rate if there were no such limit on nitrogen availability.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: kg m-2 (KMP2)

New Term

"Content" indicates a quantity per unit area. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: Pa (PASX)

New Term

The surface called "surface" means the lower boundary of the atmosphere. The chemical formula for carbon dioxide is CO2. In ocean biogeochemistry models, a "natural analogue" is used to simulate the effect on a modelled variable of imposing preindustrial atmospheric carbon dioxide concentrations, even when the model as a whole may be subjected to varying forcings. The partial pressure of a dissolved gas in sea water is the partial pressure in air with which it would be in equilibrium. The partial pressure of a gaseous constituent of air is the pressure which it alone would exert with unchanged temperature and number of moles per unit volume.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: 1 (UUUU)

New Term

In ocean modelling, diazotrophs are phytoplankton of the phylum cyanobacteria distinct from other phytoplankton groups in their ability to fix nitrogen gas in addition to nitrate and ammonium. Phytoplankton are algae that grow where there is sufficient light to support photosynthesis. "Iron growth limitation" means the ratio of the growth rate of a species population in the environment (where there is a finite availability of iron) to the theoretical growth rate if there were no such limit on iron availability.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: 1 (UUUU)

New Term

Diatoms are phytoplankton with an external skeleton made of silica. Phytoplankton are algae that grow where there is sufficient light to support photosynthesis. "Nitrogen growth limitation" means the ratio of the growth rate of a species population in the environment (where there is a finite availability of nitrogen) to the theoretical growth rate if there were no such limit on nitrogen availability.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: Pa (PASX)

New Term

The surface called "surface" means the lower boundary of the atmosphere. The chemical formula for carbon dioxide is CO2. In ocean biogeochemistry models, a "natural analogue" is used to simulate the effect on a modelled variable of imposing preindustrial atmospheric carbon dioxide concentrations, even when the model as a whole may be subjected to varying forcings. The partial pressure of a gaseous constituent of air is the pressure which it alone would exert with unchanged temperature and number of moles per unit volume. The partial pressure of a dissolved gas in sea water is the partial pressure in air with which it would be in equilibrium. The partial pressure difference between sea water and air is positive when the partial pressure of the dissolved gas in sea water is greater than the partial pressure in air.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mole_concentration_of_zooplankton_expressed_as_carbon_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Standard names also exist for the mole concentration of a number of components that make up the total zooplankton population, such as mesozooplankton, microzooplankton and miscellaneous zooplankton.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". "Dissolved inorganic phosphorus" means phosphate ions in solution.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mole_concentration_of_picophytoplankton_expressed_as_carbon_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Picophytoplankton are phytoplankton of less than 2 micrometers in size. Phytoplankton are autotrophic prokaryotic or eukaryotic algae that live near the water surface where there is sufficient light to support photosynthesis.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mole_concentration_of_microzooplankton_expressed_as_carbon_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Microzooplankton are zooplankton of less than 20 micrometers in size.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use generic name sea_water_ph_natural_analogue_reported_on_total_scale (now accepted).

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: 1 (UUUU)

New Term

The surface called "surface" means the lower boundary of the atmosphere. sea_water_pH_reported_on_total_scale is the measure of acidity of sea water, defined as the negative logarithm of the activity of dissolved hydrogen ions plus bisulfate ions in a sea water medium; it can be measured or calculated; when measured the scale is defined according to a series of buffers prepared in artificial seawater containing bisulfate. The quantity may be written as pH(total) = -log([H+](free) + [HSO4-]). In ocean biogeochemistry models, a "natural analogue" is used to simulate the effect on a modelled variable of imposing preindustrial atmospheric carbon dioxide concentrations, even when the model as a whole may be subjected to varying forcings.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mole_concentration_of_dissolved_inorganic_silicon_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". "Dissolved inorganic silicon" means silicate ions in solution.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use mole_concentration_of_ammonium_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen".

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mole_concentration_of_mesozooplankton_expressed_as_carbon_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Mesozooplankton are zooplankton ranging between 20 micrometers and 200 micrometers in size.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mole_concentration_of_nitrate_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The chemical formula for the nitrate anion is NO3-.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use mass_concentration_of_calcareous_phytoplankton_expressed_as_chlorophyll_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: kg m-3 (UKMC)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mass concentration means mass per unit volume and is used in the construction "mass_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Calcite is a mineral that is a polymorph of calcium carbonate. The chemical formula of calcite is CaCO3. "Calcareous phytoplankton" are phytoplankton that produce calcite. Phytoplankton are autotrophic prokaryotic or eukaryotic algae that live near the water surface where there is sufficient light to support photosynthesis. Chlorophylls are the green pigments found in most plants, algae and cyanobacteria; their presence is essential for photosynthesis to take place. There are several different forms of chlorophyll that occur naturally. All contain a chlorin ring (chemical formula C20H16N4) which gives the green pigment and a side chain whose structure varies. The naturally occurring forms of chlorophyll contain between 35 and 55 carbon atoms.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mass_concentration_of_diazotrophs_expressed_as_chlorophyll_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: kg m-3 (UKMC)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mass concentration means mass per unit volume and is used in the construction "mass_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. In ocean modelling, diazotrophs are phytoplankton of the phylum cyanobacteria distinct from other phytoplankton groups in their ability to fix nitrogen gas in addition to nitrate and ammonium. Phytoplankton are autotrophic prokaryotic or eukaryotic algae that live near the water surface where there is sufficient light to support photosynthesis. Chlorophylls are the green pigments found in most plants, algae and cyanobacteria; their presence is essential for photosynthesis to take place. There are several different forms of chlorophyll that occur naturally. All contain a chlorin ring (chemical formula C20H16N4) which gives the green pigment and a side chain whose structure varies. The naturally occurring forms of chlorophyll contain between 35 and 55 carbon atoms.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mole_concentration_of_dissolved_molecular_oxygen_in_sea_water_at_saturation

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. "Mole concentration at saturation" means the mole concentration in a saturated solution. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen".

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mass_concentration_of_diatoms_expressed_as_chlorophyll_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: kg m-3 (UKMC)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mass concentration means mass per unit volume and is used in the construction "mass_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Diatoms are single-celled phytoplankton with an external skeleton made of silica. Phytoplankton are autotrophic prokaryotic or eukaryotic algae that live near the water surface where there is sufficient light to support photosynthesis. Chlorophylls are the green pigments found in most plants, algae and cyanobacteria; their presence is essential for photosynthesis to take place. There are several different forms of chlorophyll that occur naturally. All contain a chlorin ring (chemical formula C20H16N4) which gives the green pigment and a side chain whose structure varies. The naturally occurring forms of chlorophyll contain between 35 and 55 carbon atoms.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mass_concentration_of_picophytoplankton_expressed_as_chlorophyll_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: kg m-3 (UKMC)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mass concentration means mass per unit volume and is used in the construction "mass_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Picophytoplankton are phytoplankton of less than 2 micrometers in size. Phytoplankton are autotrophic prokaryotic or eukaryotic algae that live near the water surface where there is sufficient light to support photosynthesis. Chlorophylls are the green pigments found in most plants, algae and cyanobacteria; their presence is essential for photosynthesis to take place. There are several different forms of chlorophyll that occur naturally. All contain a chlorin ring (chemical formula C20H16N4) which gives the green pigment and a side chain whose structure varies. The naturally occurring forms of chlorophyll contain between 35 and 55 carbon atoms.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mole_concentration_of_dissolved_molecular_oxygen_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen".

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mass_concentration_of_miscellaneous_phytoplankton_expressed_as_chlorophyll_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: kg m-3 (UKMC)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mass concentration means mass per unit volume and is used in the construction "mass_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. "Miscellaneous phytoplankton" are all those phytoplankton that are not diatoms, diazotrophs, calcareous phytoplankton, picophytoplankton or other separately named components of the phytoplankton population. Phytoplankton are autotrophic prokaryotic or eukaryotic algae that live near the water surface where there is sufficient light to support photosynthesis. Chlorophylls are the green pigments found in most plants, algae and cyanobacteria; their presence is essential for photosynthesis to take place. There are several different forms of chlorophyll that occur naturally. All contain a chlorin ring (chemical formula C20H16N4) which gives the green pigment and a side chain whose structure varies. The naturally occurring forms of chlorophyll contain between 35 and 55 carbon atoms.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mole_concentration_of_miscellaneous_phytoplankton_expressed_as_carbon_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. "Miscellaneous phytoplankton" are all those phytoplankton that are not diatoms, diazotrophs, calcareous phytoplankton, picophytoplankton or other seperately named components of the phytoplankton population. Phytoplankton are autotrophic prokaryotic or eukaryotic algae that live near the water surface where there is sufficient light to support photosynthesis.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mole_concentration_of_calcite_expressed_as_carbon_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Calcite is a mineral that is a polymorph of calcium carbonate. The chemical formula of calcite is CaCO3. Standard names also exist for aragonite, another polymorph of calcium carbonate.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mole_concentration_of_aragonite_expressed_as_carbon_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Aragonite is a mineral that is a polymorph of calcium carbonate. The chemical formula of aragonite is CaCO3. Standard names also exist for calcite, another polymorph of calcium carbonate.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mole_concentration_of_dissolved_organic_carbon_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". Organic carbon describes a family of chemical species and is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mole_concentration_of_diazotrophs_expressed_as_carbon_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. In ocean modelling, diazotrophs are phytoplankton of the phylum cyanobacteria distinct from other phytoplankton groups in their ability to fix nitrogen gas in addition to nitrate and ammonium. Phytoplankton are autotrophic prokaryotic or eukaryotic algae that live near the water surface where there is sufficient light to support photosynthesis.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Proposal moved to rejected list after agreement to use existing name mole_concentration_of_dissolved_inorganic_carbon14_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". "Dissolved inorganic carbon" describes a family of chemical species in solution, including carbon dioxide, carbonic acid and the carbonate and bicarbonate anions. "Dissolved inorganic carbon" is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. Carbon14 is a radioactive isotope of carbon having six protons and eight neutrons, used in radiocarbon dating.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Proposal added to rejected list following agreement to use existing name mole_concentration_of_dissolved_inorganic_carbon_natural_analogue_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". In ocean biogeochemistry models, a "natural analogue" is used to simulate the effect on a modelled variable of imposing preindustrial atmospheric carbon dioxide concentrations, even when the model as a whole may be subjected to varying forcings. "Dissolved inorganic carbon" describes a family of chemical species in solution, including carbon dioxide, carbonic acid and the carbonate and bicarbonate anions. "Dissolved inorganic carbon" is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mole_concentration_of_organic_detritus_expressed_as_carbon_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Organic detritus are particles of debris from decaying plants and animals.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP. Proposal moved to rejected list following agreement to use existing name mole_concentration_of_dissolved_inorganic_carbon13_in_sea_water.

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". "Dissolved inorganic carbon" describes a family of chemical species in solution, including carbon dioxide, carbonic acid and the carbonate and bicarbonate anions. "Dissolved inorganic carbon" is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. Carbon13 is a stable isotope of carbon having six protons and seven neutrons.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Proposal moved to rejected list following agreement to use existing name mole_concentration_of_dissolved_inorganic_carbon_abiotic_analogue_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". In ocean biogeochemistry models, an "abiotic analogue" is used to simulate the effect on a modelled variable when biological effects on ocean carbon concentration and alkalinity are ignored. "Dissolved inorganic carbon" describes a family of chemical species in solution, including carbon dioxide, carbonic acid and the carbonate and bicarbonate anions. "Dissolved inorganic carbon" is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use generic name sea_water_ph_abiotic_analogue_reported_on_total_scale (now accepted).

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. sea_water_pH_reported_on_total_scale is the measure of acidity of sea water, defined as the negative logarithm of the activity of dissolved hydrogen ions plus bisulfate ions in a sea water medium; it can be measured or calculated; when measured the scale is defined according to a series of buffers prepared in artificial seawater containing bisulfate. The quantity may be written as pH(total) = -log([H+](free) + [HSO4-]). In ocean biogeochemistry models, an "abiotic analogue" is used to simulate the effect on a modelled variable when biological effects on ocean carbon concentration and alkalinity are ignored.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use generic name sea_water_alkalinity_natural_analogue_expressed_as_mole_equivalent (now accepted).

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. sea_water_alkalinity_expressed_as_mole_equivalent is the total alkalinity equivalent concentration (including carbonate, nitrogen, silicate, and borate components). In ocean biogeochemistry models, a "natural analogue" is used to simulate the effect on a modelled variable of imposing preindustrial atmospheric carbon dioxide concentrations, even when the model as a whole may be subjected to varying forcings.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mass_concentration_of_phytoplankton_expressed_as_chlorophyll_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: kg m-3 (UKMC)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mass concentration means mass per unit volume and is used in the construction "mass_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Phytoplankton are autotrophic prokaryotic or eukaryotic algae that live near the water surface where there is sufficient light to support photosynthesis. Chlorophylls are the green pigments found in most plants, algae and cyanobacteria; their presence is essential for photosynthesis to take place. There are several different forms of chlorophyll that occur naturally. All contain a chlorin ring (chemical formula C20H16N4) which gives the green pigment and a side chain whose structure varies. The naturally occurring forms of chlorophyll contain between 35 and 55 carbon atoms. Standard names also exist for the mass concentration of a number of components that make up the total phytoplankton population, such as diatoms, diazotrophs, calcareous phytoplankton, picophytoplankton and miscellaneous phytoplankton.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name sea_water_alkalinity_expressed_as_mole_equivalent

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. sea_water_alkalinity_expressed_as_mole_equivalent is the total alkalinity equivalent concentration (including carbonate, nitrogen, silicate, and borate components).

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mole_concentration_of_miscellaneous_zooplankton_expressed_as_carbon_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. "Miscellaneous zooplankton" are all those zooplankton that are not mesozooplankton, microzooplankton or other seperately named components of the zooplankton population.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name sea_water_ph_reported_on_total_scale

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: 1 (UUUU)

New Term

The surface called "surface" means the lower boundary of the atmosphere. sea_water_pH_reported_on_total_scale is the measure of acidity of sea water, defined as the negative logarithm of the activity of dissolved hydrogen ions plus bisulfate ions in a sea water medium; it can be measured or calculated; when measured the scale is defined according to a series of buffers prepared in artificial seawater containing bisulfate. The quantity may be written as pH(total) = -log([H+](free) + [HSO4-]).

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mole_concentration_of_phytoplankton_expressed_as_carbon_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Phytoplankton are autotrophic prokaryotic or eukaryotic algae that live near the water surface where there is sufficient light to support photosynthesis. Standard names also exist for the mole concentration of a number of components that make up the total phytoplankton population, such as diatoms, diazotrophs, calcareous phytoplankton, picophytoplankton and miscellaneous phytoplankton.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mole_concentration_of_calcareous_phytoplankton_expressed_as_carbon_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. "Calcareous phytoplankton" are phytoplankton that produce calcite. Phytoplankton are autotrophic prokaryotic or eukaryotic algae that live near the water surface where there is sufficient light to support photosynthesis. Calcite is a mineral that is a polymorph of calcium carbonate. The chemical formula of calcite is CaCO3.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mole_concentration_of_diatoms_expressed_as_carbon_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Diatoms are single-celled phytoplankton with an external skeleton made of silica. Phytoplankton are autotrophic prokaryotic or eukaryotic algae that live near the water surface where there is sufficient light to support photosynthesis.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mole_concentration_of_dissolved_iron_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen".

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mole_concentration_of_particulate_organic_matter_expressed_as_nitrogen_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mole_concentration_of_bacteria_expressed_as_carbon_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: kg m-2 s-1 (KSP2)

New Term

The surface called "surface" means the lower boundary of the atmosphere. "Downward" indicates a vector component which is positive when directed downward (negative upward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. In ocean biogeochemistry models, an "abiotic analogue" is used to simulate the effect on a modelled variable when biological effects on ocean carbon concentration and alkalinity are ignored. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The chemical formula for carbon dioxide is CO2.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: kg m-2 s-1 (KSP2)

New Term

The surface called "surface" means the lower boundary of the atmosphere. "Downward" indicates a vector component which is positive when directed downward (negative upward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. In ocean biogeochemistry models, an "abiotic analogue" is used to simulate the effect on a modelled variable when biological effects on ocean carbon concentration and alkalinity are ignored. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Carbon14 is a radioactive isotope of carbon having six protons and eight neutrons, used in radiocarbon dating.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name mole_concentration_of_dissolved_inorganic_carbon_in_sea_water

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". "Dissolved inorganic carbon" describes a family of chemical species in solution, including carbon dioxide, carbonic acid and the carbonate and bicarbonate anions. "Dissolved inorganic carbon" is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: kg m-2 s-1 (KSP2)

New Term

The surface called "surface" means the lower boundary of the atmosphere. "Downward" indicates a vector component which is positive when directed downward (negative upward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. In ocean biogeochemistry models, an "abiotic analogue" is used to simulate the effect on a modelled variable when biological effects on ocean carbon concentration and alkalinity are ignored. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Carbon13 is a stable isotope of carbon having six protons and seven neutrons.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: kg m-2 s-1 (KSP2)

New Term

The surface called "surface" means the lower boundary of the atmosphere. "Downward" indicates a vector component which is positive when directed downward (negative upward). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. In ocean biogeochemistry models, a "natural analogue" is used to simulate the effect on a modelled variable of imposing preindustrial atmospheric carbon dioxide concentrations, even when the model as a whole may be subjected to varying forcings. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The chemical formula for carbon dioxide is CO2.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". In ocean biogeochemistry models, a "natural analogue" is used to simulate the effect on a modelled variable of imposing preindustrial atmospheric carbon dioxide concentrations, even when the model as a whole may be subjected to varying forcings. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The chemical formula of the carbonate anion is CO3 with an electrical charge of minus two.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: 1 (UUUU)

New Term

sea_water_pH_reported_on_total_scale is the measure of acidity of sea water, defined as the negative logarithm of the concentration of dissolved hydrogen ions plus bisulfate ions in a sea water medium; it can be measured or calculated; when measured the scale is defined according to a series of buffers prepared in artificial seawater containing bisulfate. The quantity may be written as pH(total) = -log([H+](free) + [HSO4-]). In ocean biogeochemistry models, an "abiotic analogue" is used to simulate the effect on a modelled variable when biological effects on ocean carbon concentration and alkalinity are ignored.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: 1 (UUUU)

New Term

sea_water_pH_reported_on_total_scale is the measure of acidity of sea water, defined as the negative logarithm of the concentration of dissolved hydrogen ions plus bisulfate ions in a sea water medium; it can be measured or calculated; when measured the scale is defined according to a series of buffers prepared in artificial seawater containing bisulfate. The quantity may be written as pH(total) = -log([H+](free) + [HSO4-]). In ocean biogeochemistry models, a "natural analogue" is used to simulate the effect on a modelled variable of imposing preindustrial atmospheric carbon dioxide concentrations, even when the model as a whole may be subjected to varying forcings.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 s-1 (MM3S)

New Term

"tendency_of_X" means derivative of X with respect to time. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Phytoplankton are autotrophic prokaryotic or eukaryotic algae that live near the water surface where there is sufficient light to support photosynthesis. "Grazing of phytoplankton" means the grazing of phytoplankton by zooplankton.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The chemical formula of the carbonate anion is CO3 with an electrical charge of minus two. Aragonite is a mineral that is a polymorph of calcium carbonate. The chemical formula of aragonite is CaCO3. At a given salinity, the thermodynamic equilibrium is that between dissolved carbonate ion and solid aragonite. Standard names also exist for calcite, another polymorph of calcium carbonate.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". "Dissolved inorganic carbon" describes a family of chemical species in solution, including carbon dioxide, carbonic acid and the carbonate and bicarbonate anions. "Dissolved inorganic carbon" is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. Carbon13 is a stable isotope of carbon having six protons and seven neutrons.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The chemical formula of the carbonate anion is CO3 with an electrical charge of minus two. Calcite is a mineral that is a polymorph of calcium carbonate. The chemical formula of calcite is CaCO3. At a given salinity, the thermodynamic equilibrium is that between dissolved carbonate ion and solid calcite. Standard names also exist for aragonite, another polymorph of calcium carbonate.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". In ocean biogeochemistry models, an "abiotic analogue" is used to simulate the effect on a modelled variable when biological effects on ocean carbon concentration and alkalinity are ignored. The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The chemical formula of the carbonate anion is CO3 with an electrical charge of minus two.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". "Dissolved inorganic silicon" means silicate ions in solution.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP Added to rejected list following agreement to use existing name surface_downward_mass_flux_of_carbon_dioxide_expressed_as_carbon

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: kg m-2 s-1 (KSP2)

New Term

"Downward" indicates a vector component which is positive when directed downward (negative upward). The surface called "surface" means the lower boundary of the atmosphere. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. The chemical formula for carbon dioxide is CO2.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". In ocean biogeochemistry models, a "natural analogue" is used to simulate the effect on a modelled variable of imposing preindustrial atmospheric carbon dioxide concentrations, even when the model as a whole may be subjected to varying forcings. "Dissolved inorganic carbon" describes a family of chemical species in solution, including carbon dioxide, carbonic acid and the carbonate and bicarbonate anions. "Dissolved inorganic carbon" is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". "Dissolved inorganic phosphorus" means phosphate ions in solution.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 s-1 (MM3S)

New Term

"tendency_of_X" means derivative of X with respect to time. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Remineralization is the degradation of organic matter into inorganic forms of carbon, nitrogen, phosphorus and other micronutrients, which consumes oxygen and releases energy.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". In ocean biogeochemistry models, an "abiotic analogue" is used to simulate the effect on a modelled variable when biological effects on ocean carbon concentration and alkalinity are ignored. "Dissolved inorganic carbon" describes a family of chemical species in solution, including carbon dioxide, carbonic acid and the carbonate and bicarbonate anions. "Dissolved inorganic carbon" is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". "Dissolved inorganic carbon" describes a family of chemical species in solution, including carbon dioxide, carbonic acid and the carbonate and bicarbonate anions. "Dissolved inorganic carbon" is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. Carbon14 is a radioactive isotope of carbon having six protons and eight neutrons, used in radiocarbon dating.

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

"Mole concentration at saturation" means the mole concentration in a saturated solution. Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen".

Proposer: Paul Durack

Proposed Date: Sept. 28, 2016

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP biogeochemistry and chemistry

Units: mol m-3 (MLM3)

New Term

sea_water_alkalinity_expressed_as_mole_equivalent is the total alkalinity equivalent concentration (including carbonate, nitrogen, silicate, and borate components). In ocean biogeochemistry models, a "natural analogue" is used to simulate the effect on a modelled variable of imposing preindustrial atmospheric carbon dioxide concentrations, even when the model as a whole may be subjected to varying forcings.

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: March 29, 2016

Comments: CMIP6 - OMIP

CF mailing list link: ocean absorption of shortwave energy

Units: W m-2 (UFAA)

New Term

"shortwave" means shortwave radiation. "Layer" means any layer with upper and lower boundaries that have constant values in some vertical coordinate. There must be a vertical coordinate variable indicating the extent of the layer(s). If the layers are model layers, the vertical coordinate can be model_level_number, but it is recommended to specify a physical coordinate (in a scalar or auxiliary coordinate variable) as well. Net absorbed radiation is the difference between absorbed and emitted radiation.

Proposer: Ben Kravitz

Proposed Date: Oct. 12, 2015

Comments: CMIP6 - GeoMIP. Name already proposed and accepted for PMIP.

CF mailing list link: GeoMIP: New variables for CF registration

Units: 1 (UUUU)

New Term

Ambient Aerosol Optical Thickness at 550 nm in the Stratosphere. From tropopause to stratopause as defined by the model.

Proposer: Ben Kravitz

Proposed Date: Oct. 12, 2015

Comments: CMIP6 - GeoMIP. (Why hasn't post appeared on mailing list?)

CF mailing list link: GeoMIP: New variables for CF registration

Units: W m-2 (UFAA)

New Term

The abbreviation "toa" means top of atmosphere. The term "shortwave" means shortwave radiation. The TOA outgoing shortwave flux is the reflected and scattered solar radiative flux i.e. the "upwelling" TOA shortwave flux, sometimes called the "outgoing shortwave radiation" or "OSR". In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. A phrase "assuming_condition" indicates that the named quantity is the value which would obtain if all aspects of the system were unaltered except for the assumption of the circumstances specified by the condition.

Proposer: Ben Kravitz

Proposed Date: Oct. 12, 2015

Comments: CMIP6 - GeoMIP. (Why hasn't post appeared on mailing list?). Rejected because this is a duplicate of a quantity needed for RFMIP - note that RFMIP name will become an alias of the syntax in this one because we agreed 'no_aerosol' instead of 'clean'.

CF mailing list link: GeoMIP: New variables for CF registration

Units: W m-2 (UFAA)

New Term

The abbreviation "toa" means top of atmosphere. The term "shortwave" means shortwave radiation. The TOA outgoing shortwave flux is the reflected and scattered solar radiative flux i.e. the "upwelling" TOA shortwave flux, sometimes called the "outgoing shortwave radiation" or "OSR". In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. A phrase "assuming_condition" indicates that the named quantity is the value which would obtain if all aspects of the system were unaltered except for the assumption of the circumstances specified by the condition. "Clear sky" means in the absence of clouds.

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 30, 2015

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: W m-2 (UFAA)

New Term

The phrase "tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The phrase "expressed_as_heat_content" means that this quantity is calculated as the specific heat capacity times density of sea water multiplied by the conservative temperature of the sea water in the grid cell. Conservative Temperature is defined as part of the Thermodynamic Equation of Seawater 2010 (TEOS-10) which was adopted in 2010 by the International Oceanographic Commission (IOC). Conservative Temperature is specific potential enthalpy (which has the standard name sea_water_specific_potential_enthalpy) divided by a fixed value of the specific heat capacity of sea water, namely cp_0 = 3991.86795711963 J kg-1 K-1. Conservative Temperature is a more accurate measure of the "heat content" of sea water, by a factor of one hundred, than is potential temperature. Because of this, it can be regarded as being proportional to the heat content of sea water per unit mass. Reference: www.teos-10.org; McDougall, 2003 doi: 10.1175/1520-0485(2003)033<0945:PEACOV>2.0.CO;2. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized eddy advection can be represented on various spatial scales and there are standard names for parameterized_mesoscale_eddy_advection and parameterized_submesoscale_eddy_advection which both contribute to the total parameterized eddy advection. Additionally, when the parameterized advective process is represented in the model as a skew-diffusion rather than an advection, then the parameterized skew diffusion should be included in this diagnostic. The convergence of a skew-flux is identical (in the continuous formulation) to the convergence of an advective flux, making their tendencies the same.

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 30, 2015

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: kg m-2 s-1 (KSP2)

New Term

The phrase "tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. The phrase "residual_mean_advection" refers to the sum of the model's resolved advective transport plus any parameterized advective transport. Parameterized advective transport includes processes such as parameterized mesoscale and submesoscale transport, as well as any other advectively parameterized transport. When the parameterized advective transport is represented in the model as a skew-diffusion rather than an advection, then the parameterized skew diffusion should be included in this diagnostic, since the convergence of skew-fluxes are identical (in the continuous formulation) to the convergence of advective fluxes.

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 30, 2015

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: W m-2 (UFAA)

New Term

"tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The phrase "expressed_as_heat_content" means that this quantity is calculated as the specific heat capacity times density of sea water multiplied by the conservative temperature of the sea water in the grid cell. Conservative Temperature is defined as part of the Thermodynamic Equation of Seawater 2010 (TEOS-10) which was adopted in 2010 by the International Oceanographic Commission (IOC). Conservative Temperature is specific potential enthalpy (which has the standard name sea_water_specific_potential_enthalpy) divided by a fixed value of the specific heat capacity of sea water, namely cp_0 = 3991.86795711963 J kg-1 K-1. Conservative Temperature is a more accurate measure of the "heat content" of sea water, by a factor of one hundred, than is potential temperature. Because of this, it can be regarded as being proportional to the heat content of sea water per unit mass. Reference: www.teos-10.org; McDougall, 2003 doi: 10.1175/1520-0485(2003)033<0945:PEACOV>2.0.CO;2. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. The phrase "residual_mean_advection" refers to the sum of the model's resolved advective transport plus any parameterized advective transport. Parameterized advective transport includes processes such as parameterized mesoscale and submesoscale transport, as well as any other advectively parameterized transport. When the parameterized advective transport is represented in the model as a skew-diffusion rather than an advection, then the parameterized skew diffusion should be included in this diagnostic, since the convergence of skew-fluxes are identical (in the continuous formulation) to the convergence of advective fluxes.

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 30, 2015

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: W m-2 (UFAA)

New Term

"Content" indicates a quantity per unit area. The phrase "tendency_of_X" means derivative of X with respect to time. This tendency encompasses all processes that impact on the time changes for the heat content within a grid cell. The phrase "expressed_as_heat_content" means that this quantity is calculated as the specific heat capacity times density of sea water multiplied by the conservative temperature of the sea water in the grid cell. Conservative Temperature is defined as part of the Thermodynamic Equation of Seawater 2010 (TEOS-10) which was adopted in 2010 by the International Oceanographic Commission (IOC). Conservative Temperature is specific potential enthalpy (which has the standard name sea_water_specific_potential_enthalpy) divided by a fixed value of the specific heat capacity of sea water, namely cp_0 = 3991.86795711963 J kg-1 K-1. Conservative Temperature is a more accurate measure of the "heat content" of sea water, by a factor of one hundred, than is potential temperature. Because of this, it can be regarded as being proportional to the heat content of sea water per unit mass. Reference: www.teos-10.org; McDougall, 2003 doi: 10.1175/1520-0485(2003)033<0945:PEACOV>2.0.CO;2.

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 30, 2015

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: W m-2 (UFAA)

New Term

The phrase "tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The phrase "expressed_as_heat_content" means that this quantity is calculated as the specific heat capacity times density of sea water multiplied by the potential temperature of the sea water in the grid cell. Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized submesoscale eddy advection occurs on a spatial scale of the order of 1 km horizontally. Reference: James C. McWilliams 2016, Submesoscale currents in the ocean, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, volume 472, issue 2189. DOI: 10.1098/rspa.2016.0117. There are also standard names for parameterized_mesoscale_eddy_advection which, along with parameterized_submesoscale_eddy_advection, contributes to the total parameterized eddy advection. Additionally, when the parameterized advective process is represented in the model as a skew-diffusion rather than an advection, then the parameterized skew diffusion should be included in this diagnostic. The convergence of a skew-flux is identical (in the continuous formulation) to the convergence of an advective flux, making their tendencies the same.

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 30, 2015

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: kg s-1 (KGPS)

New Term

"y" indicates a vector component along the grid y-axis, positive with increasing y. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized mesoscale eddy advection occurs on a spatial scale of many tens of kilometres and an evolutionary time of weeks. Reference: James C. McWilliams 2016, Submesoscale currents in the ocean, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, volume 472, issue 2189. DOI: 10.1098/rspa.2016.0117. Parameterized mesoscale eddy advection is represented in ocean models using schemes such as the Gent-McWilliams scheme. There are also standard names for parameterized_submesoscale_eddy_advection which, along with parameterized_mesoscale_eddy_advection, contributes to the total parameterized eddy advection.

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 30, 2015

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: kg s-1 (KGPS)

New Term

The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized mesoscale eddy advection occurs on a spatial scale of many tens of kilometres and an evolutionary time of weeks. Reference: James C. McWilliams 2016, Submesoscale currents in the ocean, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, volume 472, issue 2189. DOI: 10.1098/rspa.2016.0117. Parameterized mesoscale eddy advection is represented in ocean models using schemes such as the Gent-McWilliams scheme. There are also standard names for parameterized_submesoscale_eddy_advection which, along with parameterized_mesoscale_eddy_advection, contributes to the total parameterized eddy advection.

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 30, 2015

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: W (WATT)

New Term

"Northward" indicates a vector component which is positive when directed northward (negative southward). The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized mesoscale eddy diffusive processes include diffusion along neutral directions in the interior of the ocean and horizontal diffusion in the surface boundary layer. The processes occur on a spatial scale of many tens of kilometres and an evolutionary time of weeks.

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 30, 2015

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: kg m-2 s-1 (KSP2)

New Term

The phrase "tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized mesoscale eddy diffusive processes include diffusion along neutral directions in the interior of the ocean and horizontal diffusion in the surface boundary layer. The processes occur on a spatial scale of many tens of kilometres and an evolutionary time of weeks.

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 30, 2015

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: W (WATT)

New Term

"Northward" indicates a vector component which is positive when directed northward (negative southward). The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized submesoscale eddy advection occurs on a spatial scale of the order of 1 km horizontally. Reference: James C. McWilliams 2016, Submesoscale currents in the ocean, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, volume 472, issue 2189. DOI: 10.1098/rspa.2016.0117. There are also standard names for parameterized_mesoscale_eddy_advection which, along with parameterized_submesoscale_eddy_advection, contributes to the total parameterized eddy advection.

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 30, 2015

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: 1e-3 (UUUU)

New Term

The salinity at the sea floor is that adjacent to the ocean bottom, which would be the deepest grid cell in an ocean model. Sea water salinity is the salt concentration of sea water, often on the Practical Salinity Scale of 1978. However, the unqualified term 'salinity' is generic and does not necessarily imply any particular method of calculation. The units of salinity are dimensionless and the units attribute should normally be given as 1e-3 or 0.001 i.e. parts per thousand. There are standard names for the more precisely defined salinity quantities sea_water_knudsen_salinity, S_K (used for salinity observations between 1901 and 1966), sea_water_cox_salinity, S_C (used for salinity observations between 1967 and 1977), sea_water_practical_salinity, S_P (used for salinity observations from 1978 to the present day), sea_water_absolute_salinity, S_A, sea_water_preformed_salinity, S_*, and sea_water_reference_salinity. Practical Salinity is reported on the Practical Salinity Scale of 1978 (PSS-78), and is usually based on the electrical conductivity of sea water in observations since the 1960s. Conversion of data between the observed scales follows S_P = (S_K - 0.03) * (1.80655 / 1.805) and S_P = S_C, however the accuracy of the latter is dependent on whether chlorinity or conductivity was used to determine the S_C value, with this inconsistency driving the development of PSS-78. The more precise standard names should be used where appropriate for both modelled and observed salinities. In particular, the use of sea_water_salinity to describe salinity observations made from 1978 onwards is now deprecated in favor of the term sea_water_practical_salinity which is the salinity quantity stored by national data centers for post-1978 observations. The only exception to this is where the observed salinities are definitely known not to be recorded on the Practical Salinity Scale. Practical salinity units are dimensionless. The unit "parts per thousand" was used for sea_water_knudsen_salinity and sea_water_cox_salinity.

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 30, 2015

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: W m-2 (UFAA)

New Term

The phrase "tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The phrase "expressed_as_heat_content" means that this quantity is calculated as the specific heat capacity times density of sea water multiplied by the potential temperature of the sea water in the grid cell. Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. The phrase "residual_mean_advection" refers to the sum of the model's resolved advective transport plus any parameterized advective transport. Parameterized advective transport includes processes such as parameterized mesoscale and submesoscale transport, as well as any other advectively parameterized transport. When the parameterized advective transport is represented in the model as a skew-diffusion rather than an advection, then the parameterized skew diffusion should be included in this diagnostic, since the convergence of skew-fluxes are identical (in the continuous formulation) to the convergence of advective fluxes.

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 30, 2015

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: kg degree_C m-2 (DKM2)

New Term

The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". Depth is the vertical distance below the surface. The phrase "product_of_X_and_Y" means X*Y. Sea water density is the in-situ density (not the potential density). For Boussinesq models, density is the constant Boussinesq reference density, a quantity which has the standard name reference_sea_water_density_for_boussinesq_approximation. Conservative Temperature is defined as part of the Thermodynamic Equation of Seawater 2010 (TEOS-10) which was adopted in 2010 by the International Oceanographic Commission (IOC). Conservative Temperature is specific potential enthalpy (which has the standard name sea_water_specific_potential_enthalpy) divided by a fixed value of the specific heat capacity of sea water, namely cp_0 = 3991.86795711963 J kg-1 K-1. Conservative Temperature is a more accurate measure of the "heat content" of sea water, by a factor of one hundred, than is potential temperature. Because of this, it can be regarded as being proportional to the heat content of sea water per unit mass. Reference: www.teos-10.org; McDougall, 2003 doi: 10.1175/1520-0485(2003)033<0945:PEACOV>2.0.CO;2.

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 30, 2015

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: kg m-2 s-1 (KSP2)

New Term

"Content" indicates a quantity per unit area. "tendency_of_X" means derivative of X with respect to time. This tendency encompasses all processes that impact on the time changes for the salt content within a grid cell.

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 30, 2015

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: W m-2 (UFAA)

New Term

"tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The phrase "expressed_as_heat_content" means that this quantity is calculated as the specific heat capacity times density of sea water multiplied by the potential temperature of the sea water in the grid cell. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized eddy advection can be represented on various spatial scales and there are standard names for parameterized_mesoscale_eddy_advection and parameterized_submesoscale_eddy_advection which both contribute to the total parameterized eddy advection. Additionally, when the parameterized advective process is represented in the model as a skew-diffusion rather than an advection, then the parameterized skew diffusion should be included in this diagnostic. The convergence of a skew-flux is identical (in the continuous formulation) to the convergence of an advective flux, making their tendencies the same.

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 30, 2015

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: W m-2 (UFAA)

New Term

The phrase "tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The phrase "expressed_as_heat_content" means that this quantity is calculated as the specific heat capacity times density of sea water multiplied by the potential temperature of the sea water in the grid cell. Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized mesoscale eddy diffusive processes include diffusion along neutral directions in the interior of the ocean and horizontal diffusion in the surface boundary layer. The processes occur on a spatial scale of many tens of kilometres and an evolutionary time of weeks.

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 30, 2015

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: W (WATT)

New Term

"Northward" indicates a vector component which is positive when directed northward (negative southward). The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized mesoscale eddy advection occurs on a spatial scale of many tens of kilometres and an evolutionary time of weeks. Reference: James C. McWilliams 2016, Submesoscale currents in the ocean, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, volume 472, issue 2189. DOI: 10.1098/rspa.2016.0117. Parameterized mesoscale eddy advection is represented in ocean models using schemes such as the Gent-McWilliams scheme. There are also standard names for parameterized_submesoscale_eddy_advection which, along with parameterized_mesoscale_eddy_advection, contributes to the total parameterized eddy advection.

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 30, 2015

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: kg m-2 s-1 (KSP2)

New Term

The phrase "tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized submesoscale eddy advection occurs on a spatial scale of the order of 1 km horizontally. Reference: James C. McWilliams 2016, Submesoscale currents in the ocean, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, volume 472, issue 2189. DOI: 10.1098/rspa.2016.0117. There are also standard names for parameterized_mesoscale_eddy_advection which, along with parameterized_submesoscale_eddy_advection, contributes to the total parameterized eddy advection. Additionally, when the parameterized advective process is represented in the model as a skew-diffusion rather than an advection, then the parameterized skew diffusion should be included in this diagnostic. The convergence of a skew-flux is identical (in the continuous formulation) to the convergence of an advective flux, making their tendencies the same.

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 30, 2015

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: kg s-1 (KGPS)

New Term

"y" indicates a vector component along the grid y-axis, positive with increasing y. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized submesoscale eddy advection occurs on a spatial scale of the order of 1 km horizontally. Reference: James C. McWilliams 2016, Submesoscale currents in the ocean, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, volume 472, issue 2189. DOI: 10.1098/rspa.2016.0117. There are also standard names for parameterized_mesoscale_eddy_advection which, along with parameterized_submesoscale_eddy_advection, contributes to the total parameterized eddy advection.

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 30, 2015

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: 1e-3 kg m-2 (KMP2)

New Term

The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". The phrase "product_of_X_and_Y" means X*Y. Depth is the vertical distance below the surface. Sea water density is the in-situ density (not the potential density). For Boussinesq models, density is the constant Boussinesq reference density, a quantity which has the standard name reference_sea_water_density_for_boussinesq_approximation. Sea water salinity is the salt content of sea water, often on the Practical Salinity Scale of 1978. However, the unqualified term 'salinity' is generic and does not necessarily imply any particular method of calculation. The units of salinity are dimensionless and the units attribute should normally be given as 1e-3 or 0.001 i.e. parts per thousand. There are standard names for the more precisely defined salinity quantities sea_water_knudsen_salinity, S_K (used for salinity observations between 1901 and 1966), sea_water_cox_salinity, S_C (used for salinity observations between 1967 and 1977), sea_water_practical_salinity, S_P (used for salinity observations from 1978 to the present day), sea_water_absolute_salinity, S_A, sea_water_preformed_salinity, S_*, and sea_water_reference_salinity. Practical Salinity is reported on the Practical Salinity Scale of 1978 (PSS-78), and is usually based on the electrical conductivity of sea water in observations since the 1960s. Conversion of data between the observed scales follows S_P = (S_K - 0.03) * (1.80655 / 1.805) and S_P = S_C, however the accuracy of the latter is dependent on whether chlorinity or conductivity was used to determine the S_C value, with this inconsistency driving the development of PSS-78. The more precise standard names should be used where appropriate for both modelled and observed salinities. In particular, the use of sea_water_salinity to describe salinity observations made from 1978 onwards is now deprecated in favor of the term sea_water_practical_salinity which is the salinity quantity stored by national data centers for post-1978 observations. The only exception to this is where the observed salinities are definitely known not to be recorded on the Practical Salinity Scale. Practical salinity units are dimensionless. The unit "parts per thousand" was used for sea_water_knudsen_salinity and sea_water_cox_salinity.

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 30, 2015

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: kg degree_C m-2 (DKM2)

New Term

The phrase "integral_wrt_X_of_Y" means int Y dX. The data variable should have an axis for X specifying the limits of the integral as bounds. The phrase "wrt" means "with respect to". The phrase "product_of_X_and_Y" means X*Y. Depth is the vertical distance below the surface. Sea water density is the in-situ density (not the potential density). For Boussinesq models, density is the constant Boussinesq reference density, a quantity which has the standard name reference_sea_water_density_for_boussinesq_approximation. Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure.

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 30, 2015

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: W m-2 (UFAA)

New Term

The phrase "tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The phrase "expressed_as_heat_content" means that this quantity is calculated as the specific heat capacity times density of sea water multiplied by the potential temperature of the sea water in the grid cell. Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Eddy dianeutral mixing" means dianeutral mixing, i.e. mixing across neutral directions caused by the unresolved turbulent motion of eddies of all types (e.g., breaking gravity waves, boundary layer turbulence, etc.).

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 30, 2015

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: W m-2 (UFAA)

New Term

The phrase "tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The phrase "expressed_as_heat_content" means that this quantity is calculated as the specific heat capacity times density of sea water multiplied by the conservative temperature of the sea water in the grid cell. Conservative Temperature is defined as part of the Thermodynamic Equation of Seawater 2010 (TEOS-10) which was adopted in 2010 by the International Oceanographic Commission (IOC). Conservative Temperature is specific potential enthalpy (which has the standard name sea_water_specific_potential_enthalpy) divided by a fixed value of the specific heat capacity of sea water, namely cp_0 = 3991.86795711963 J kg-1 K-1. Conservative Temperature is a more accurate measure of the "heat content" of sea water, by a factor of one hundred, than is potential temperature. Because of this, it can be regarded as being proportional to the heat content of sea water per unit mass. Reference: www.teos-10.org; McDougall, 2003 doi: 10.1175/1520-0485(2003)033<0945:PEACOV>2.0.CO;2. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized mesoscale eddy diffusive processes include diffusion along neutral directions in the interior of the ocean and horizontal diffusion in the surface boundary layer. The processes occur on a spatial scale of many tens of kilometres and an evolutionary time of weeks. The phrase "expressed_as_heat_content" means that this quantity is calculated as the specific heat capacity times density of sea water multiplied by the conservative temperature of the sea water in the grid cell.

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 30, 2015

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: kg s-1 (KGPS)

New Term

The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized submesoscale eddy advection occurs on a spatial scale of the order of 1 km horizontally. Reference: James C. McWilliams 2016, Submesoscale currents in the ocean, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, volume 472, issue 2189. DOI: 10.1098/rspa.2016.0117. There are also standard names for parameterized_mesoscale_eddy_advection which, along with parameterized_submesoscale_eddy_advection, contributes to the total parameterized eddy advection.

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 30, 2015

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: kg m-2 s-1 (KSP2)

New Term

The phrase "tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Eddy dianeutral mixing" means dianeutral mixing, i.e. mixing across neutral directions caused by the unresolved turbulent motion of eddies of all types (e.g., breaking gravity waves, boundary layer turbulence, etc.).

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 30, 2015

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: kg m-2 s-1 (KSP2)

New Term

The phrase "tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized eddy advection can be represented on various spatial scales and there are standard names for parameterized_mesoscale_eddy_advection and parameterized_submesoscale_eddy_advection which both contribute to the total parameterized eddy advection. Additionally, when the parameterized advective process is represented in the model as a skew-diffusion rather than an advection, then the parameterized skew diffusion should be included in this diagnostic. The convergence of a skew-flux is identical (in the continuous formulation) to the convergence of an advective flux, making their tendencies the same.

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 30, 2015

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: W m-2 (UFAA)

New Term

The phrase "tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The phrase "expressed_as_heat_content" means that this quantity is calculated as the specific heat capacity times density of sea water multiplied by the conservative temperature of the sea water in the grid cell. Conservative Temperature is defined as part of the Thermodynamic Equation of Seawater 2010 (TEOS-10) which was adopted in 2010 by the International Oceanographic Commission (IOC). Conservative Temperature is specific potential enthalpy (which has the standard name sea_water_specific_potential_enthalpy) divided by a fixed value of the specific heat capacity of sea water, namely cp_0 = 3991.86795711963 J kg-1 K-1. Conservative Temperature is a more accurate measure of the "heat content" of sea water, by a factor of one hundred, than is potential temperature. Because of this, it can be regarded as being proportional to the heat content of sea water per unit mass. Reference: www.teos-10.org; McDougall, 2003 doi: 10.1175/1520-0485(2003)033<0945:PEACOV>2.0.CO;2. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Eddy dianeutral mixing" means dianeutral mixing, i.e. mixing across neutral directions caused by the unresolved turbulent motion of eddies of all types (e.g., breaking gravity waves, boundary layer turbulence, etc.).

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 30, 2015

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: W m-2 (UFAA)

New Term

"Content" indicates a quantity per unit area. The phrase "tendency_of_X" means derivative of X with respect to time. This tendency encompasses all processes that impact on the time changes for the heat content within a grid cell. The phrase "expressed_as_heat_content" means that this quantity is calculated as the specific heat capacity times density of sea water multiplied by the potential temperature of the sea water in the grid cell. Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure.

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 30, 2015

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: W m-2 (UFAA)

New Term

The phrase "tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The phrase "expressed_as_heat_content" means that this quantity is calculated as the specific heat capacity times density of sea water multiplied by the conservative temperature of the sea water in the grid cell. Conservative Temperature is defined as part of the Thermodynamic Equation of Seawater 2010 (TEOS-10) which was adopted in 2010 by the International Oceanographic Commission (IOC). Conservative Temperature is specific potential enthalpy (which has the standard name sea_water_specific_potential_enthalpy) divided by a fixed value of the specific heat capacity of sea water, namely cp_0 = 3991.86795711963 J kg-1 K-1. Conservative Temperature is a more accurate measure of the "heat content" of sea water, by a factor of one hundred, than is potential temperature. Because of this, it can be regarded as being proportional to the heat content of sea water per unit mass. Reference: www.teos-10.org; McDougall, 2003 doi: 10.1175/1520-0485(2003)033<0945:PEACOV>2.0.CO;2. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized submesoscale eddy advection occurs on a spatial scale of the order of 1 km horizontally. Reference: James C. McWilliams 2016, Submesoscale currents in the ocean, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, volume 472, issue 2189. DOI: 10.1098/rspa.2016.0117. There are also standard names for parameterized_mesoscale_eddy_advection which, along with parameterized_submesoscale_eddy_advection, contributes to the total parameterized eddy advection. Additionally, when the parameterized advective process is represented in the model as a skew-diffusion rather than an advection, then the parameterized skew diffusion should be included in this diagnostic. The convergence of a skew-flux is identical (in the continuous formulation) to the convergence of an advective flux, making their tendencies the same.

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 30, 2015

Comments: CMIP6 - OMIP

CF mailing list link: ; proposed new ocean standard names to support CMIP6

Units: kg m-2 s-1 (KSP2)

New Term

The phrase "tendency_of_X" means derivative of X with respect to time. "Content" indicates a quantity per unit area. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized mesoscale eddy advection occurs on a spatial scale of many tens of kilometres and an evolutionary time of weeks. Reference: James C. McWilliams 2016, Submesoscale currents in the ocean, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, volume 472, issue 2189. DOI: 10.1098/rspa.2016.0117. Parameterized mesoscale eddy advection is represented in ocean models using schemes such as the Gent-McWilliams scheme. There are also standard names for parameterized_submesoscale_eddy_advection which, along with parameterized_mesoscale_eddy_advection, contributes to the total parameterized eddy advection. Additionally, when the parameterized advective process is represented in the model as a skew-diffusion rather than an advection, then the parameterized skew diffusion should be included in this diagnostic. The convergence of a skew-flux is identical (in the continuous formulation) to the convergence of an advective flux, making their tendencies the same.

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 30, 2015

Comments: CMIP6 - OMIP

CF mailing list link: proposed new ocean standard names to support CMIP6; Copernicus Marine Service standard_names

Units: K (UPKA)

New Term

Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure. The potential temperature at the sea floor is that adjacent to the ocean bottom, which would be the deepest grid cell in an ocean model.

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 30, 2015

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: J kg-1 K-1 (JKGK)

New Term

The specific heat capacity of sea water, Cp(ocean), is used in ocean models to convert between model prognostic temperature (potential or conservative temperature) and model heat content.

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 30, 2015

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: s-2 (UPSS)

New Term

The phrase "square_of_X" means X*X. Frequency is the number of oscillations of a wave per unit time. Brunt-Vaisala frequency is also sometimes called "buoyancy frequency" and is a measure of the vertical stratification of the medium.

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: Jan. 30, 2015

Comments: CMIP6 - OMIP

CF mailing list link: New standard names for OMIP: physics; proposed new ocean standard names to support CMIP6

Units: m2 s-1 (SQMS)

New Term

Diffusivity is also sometimes known as the coefficient of diffusion. Diffusion occurs as a result of a gradient in the spatial distribution of mass concentration, temperature or momentum. The diffusivity may be very different in the vertical and horizontal directions. The specification of a physical process by the phrase "due_to_" process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. Parameterized eddy advection in an ocean model means the part due to a scheme representing parameterized eddy-induced advective effects not included in the resolved model velocity field. Parameterized mesoscale eddy advection occurs on a spatial scale of many tens of kilometres and an evolutionary time of weeks. Reference: James C. McWilliams 2016, Submesoscale currents in the ocean, Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, volume 472, issue 2189. DOI: 10.1098/rspa.2016.0117. Parameterized mesoscale eddy advection is represented in ocean models using schemes such as the Gent-McWilliams scheme. There are also standard names for parameterized_submesoscale_eddy_advection which, along with parameterized_mesoscale_eddy_advection, contributes to the total parameterized eddy advection.