350 proposals match your search

acoustic_inertia_in_sea_water

under discussion

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Proposer: John Horne, Mark Yamane, Rob Cermak

Proposed Date: March 18, 2024

Comments: #298

CF mailing list link: Standard names: additional active acoustic standard names

Units: m-2 (PMSQ)

New Term

Acoustic inertia is the sum of squared distances from the acoustic_centre_of_mass weighted by the volume backscattering coefficient at each distance and normalized by the total area backscattering coefficient. Volume backscattering coefficient is the linear form of acoustic_volume_backscattering_strength_in_sea_water. Area backscattering coefficient is the integral of the volume backscattering coefficient over a defined distance. For further details see Urmy et. al (2012) doi:10.1093/icesjms/fsr205 and Bez and Rivoirard (2001) doi:10.1016/S0165-7836(00)00241-1.

acoustic_index_of_aggregation_in_sea_water

under discussion

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Proposer: John Horne, Mark Yamane, Rob Cermak

Proposed Date: March 18, 2024

Comments: #298

CF mailing list link: Standard names: additional active acoustic standard names

Units: m-1 (UPRM)

New Term

Acoustic index of aggregation is the depth integral of squared volume backscattering coefficient divided by the squared area backscattering coefficient. Volume backscattering coefficient is the linear form of acoustic_volume_backscattering_strength_in_sea_water. Area backscattering coefficient is the integral of the volume backscattering coefficient over a defined distance. The parameter is computed to provide a value that represents the patchiness of biomass in the water column in the field of fisheries acoustics - the value is high when small areas are much denser than the rest of the distribution. The parameter is also the reciprocal of acoustic_equivalent_area_in_sea_water. For further details see Urmy et. al (2012) doi:10.1093/icesjms/fsr205 and Woillez et. al (2007) doi.org/10.1093/icesjms/fsm025.

acoustic_equivalent_area_in_sea_water

under discussion

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Proposer: John Horne, Mark Yamane, Rob Cermak

Proposed Date: March 18, 2024

Comments: #298

CF mailing list link: Standard names: additional active acoustic standard names

Units: m (ULAA)

New Term

Acoustic equivalent area is the squared area backscattering coefficient divided by the depth integral of squared volume backscattering coefficient. Area backscattering coefficient is the integral of the volume backscattering coefficient over a defined distance. Volume backscattering coefficient is the linear form of acoustic_volume_backscattering_strength_in_sea_water. The parameter is computed to provide a value that represents the area that would be occupied if all data cells contained the mean density and is the reciprocal of acoustic_index_of_aggregation_in_sea_water. For further details see Urmy et. al (2012) doi:10.1093/icesjms/fsr205 and Woillez et. al (2007) doi.org/10.1093/icesjms/fsm025.

received_power_of_radio_wave_in_air_scattered_by_air

accepted

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Proposer: Ingemar Häggström

Proposed Date: Oct. 1, 2021

Comments: #133

CF mailing list link: Standard names: atmospheric radar terms

Units: W (WATT)

Updated term description

Power of a radio wave, that was transmitted by an instrument and propagates in the air where it's scattered by the air due to which its properties change, and it is received again by an instrument. The "instrument" (examples are radar and lidar) is the device used to make the observation. The "scatterers" are what causes the transmitted signal to be returned to the instrument (examples are aerosols, hydrometeors and refractive index irregularities in the air). A standard name referring to the received power of the signal at the instrument.

radio_signal_roundtrip_travel_time_in_air

accepted

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Proposer: Ingemar Häggström

Proposed Date: Oct. 1, 2021

Comments: #133

CF mailing list link: Standard names: atmospheric radar terms

Units: s (UTBB)

Updated term description

Time it takes for a radio wave, that was transmitted by an instrument to propagate through the air to the volume of air where it is scattered and return back to an instrument. The "instrument" (examples are radar and lidar) is the device used to make the observation. The "scatterers" are what causes the transmitted signal to be returned to the instrument (examples are aerosols, hydrometeors and refractive index irregularities in the air). A standard name referring to time taken for a radio signal to propagate from the emitting instrument to a scattering volume and back to an instrument.

spectral_width_of_radio_wave_in_air_scattered_by_air

under discussion

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Proposer: Ingemar Häggström

Proposed Date: Oct. 1, 2021

Comments: #133

CF mailing list link: Standard names: atmospheric radar terms

Units: Hz (UTHZ)

Updated term description

Frequency width of the radio wave, that was transmitted by an instrument and propagates in the air where it's scattered by the air due to which its properties change, and it is received by an instrument. The "instrument" (examples are radar and lidar) is the device used to make the observation. The "scatterers" are what causes the transmitted signal to be returned to the instrument (examples are aerosols, hydrometeors and refractive index irregularities in the air). A standard name referring to frequency spectra width of the signal received at the instrument.

upwelling_shortwave_flux_in_air_assuming_clear_sky_and_reference_mole_fraction_of_ozone_in_air

accepted

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Proposer: Fiona O'Connor

Proposed Date: March 19, 2024

Comments: #299

CF mailing list link: Standard names: Propose new additions to the standard names table

Units: W/m2 (UFAA)

New Term

Upwelling radiation is radiation from below. It does not mean "net upward". The sign convention is that "upwelling" is positive upwards and "downwelling" is positive downwards. The term "shortwave" means shortwave 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. 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. This 3D ozone field acts as a reference ozone field in a diagnostic call to the model's radiation scheme. It is expressed in terms of mole fraction of ozone in air. It may be observation-based or model-derived. It may be from any time period. By using the same ozone reference in the diagnostic radiation call in two model simulations and calculating differences between the radiative flux diagnostics from the prognostic call to the radiation scheme and the diagnostic call to the radiation scheme with the ozone reference, an instantaneous radiative forcing for ozone can be calculated.

downwelling_longwave_flux_in_air_assuming_clear_sky_and_reference_mole_fraction_of_ozone_in_air

accepted

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Proposer: Fiona O'Connor

Proposed Date: March 19, 2024

Comments: #299

CF mailing list link: Standard names: Propose new additions to the standard names table

Units: W/m2 (UFAA)

New Term

Downwelling radiation is radiation from above. It does not mean "net downward". The sign convention is that "upwelling" is positive upwards and "downwelling" is positive downwards. The term "longwave" means longwave 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. 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. This 3D ozone field acts as a reference ozone field in a diagnostic call to the model's radiation scheme. It is expressed in terms of mole fraction of ozone in air. It may be observation-based or model-derived. It may be from any time period. By using the same ozone reference in the diagnostic radiation call in two model simulations and calculating differences between the radiative flux diagnostics from the prognostic call to the radiation scheme and the diagnostic call to the radiation scheme with the ozone reference, an instantaneous radiative forcing for ozone can be calculated.

upwelling_longwave_flux_in_air_assuming_clear_sky_and_reference_mole_fraction_of_ozone_in_air

accepted

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Proposer: Fiona O'Connor

Proposed Date: March 19, 2024

Comments: #299

CF mailing list link: Standard names: Propose new additions to the standard names table

Units: W/m2 (UFAA)

New Term

The term "longwave" means longwave radiation. Upwelling radiation is radiation from below. It does not mean "net upward". The sign convention is that "upwelling" is positive upwards and "downwelling" is positive downwards. 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. 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. This 3D ozone field acts as a reference ozone field in a diagnostic call to the model's radiation scheme. It is expressed in terms of mole fraction of ozone in air. It may be observation-based or model-derived. It may be from any time period. By using the same ozone reference in the diagnostic radiation call in two model simulations and calculating differences between the radiative flux diagnostics from the prognostic call to the radiation scheme and the diagnostic call to the radiation scheme with the ozone reference, an instantaneous radiative forcing for ozone can be calculated.

toa_outgoing_shortwave_flux_assuming_clear_sky_and_reference_mole_fraction_of_ozone_in_air

accepted

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Proposer: Fiona O'Connor

Proposed Date: March 19, 2024

Comments: #299

CF mailing list link: Standard names: Propose new additions to the standard names table

Units: W/m2 (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. This 3D ozone field acts as a reference ozone field in a diagnostic call to the model's radiation scheme. It is expressed in terms of mole fraction of ozone in air. It may be observation-based or model-derived. It may be from any time period. By using the same ozone reference in the diagnostic radiation call in two model simulations and calculating differences between the radiative flux diagnostics from the prognostic call to the radiation scheme and the diagnostic call to the radiation scheme with the ozone reference, an instantaneous radiative forcing for ozone can be calculated.

surface_upwelling_shortwave_flux_in_air_assuming_clear_sky_and_reference_mole_fraction_of_ozone_in_air

accepted

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Proposer: Fiona O'Connor

Proposed Date: March 19, 2024

Comments: #299

CF mailing list link: Standard names: Propose new additions to the standard names table

Units: W/m2 (UFAA)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Upwelling radiation is radiation from below. It does not mean "net upward". The sign convention is that "upwelling" is positive upwards and "downwelling" is positive downwards. The term "shortwave" means shortwave 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. 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. This 3D ozone field acts as a reference ozone field in a diagnostic call to the model's radiation scheme. It is expressed in terms of mole fraction of ozone in air. It may be observation-based or model-derived. It may be from any time period. By using the same ozone reference in the diagnostic radiation call in two model simulations and calculating differences between the radiative flux diagnostics from the prognostic call to the radiation scheme and the diagnostic call to the radiation scheme with the ozone reference, an instantaneous radiative forcing for ozone can be calculated.

upwelling_longwave_flux_in_air_assuming_clear_sky_and_reference_mole_fraction_of_ozone_in_air

accepted

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Proposer: Fiona O'Connor

Proposed Date: March 19, 2024

Comments: #299

CF mailing list link: Standard names: Propose new additions to the standard names table

Units: W/m2 (UFAA)

New Term

The term "longwave" means longwave radiation. Upwelling radiation is radiation from below. It does not mean "net upward". The sign convention is that "upwelling" is positive upwards and "downwelling" is positive downwards. 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. 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. This 3D ozone field acts as a reference ozone field in a diagnostic call to the model's radiation scheme. It is expressed in terms of mole fraction of ozone in air. It may be observation-based or model-derived. It may be from any time period. By using the same ozone reference in the diagnostic radiation call in two model simulations and calculating differences between the radiative flux diagnostics from the prognostic call to the radiation scheme and the diagnostic call to the radiation scheme with the ozone reference, an instantaneous radiative forcing for ozone can be calculated.

surface_downwelling_shortwave_flux_in_air_assuming_clear_sky_and_reference_mole_fraction_of_ozone_in_air

accepted

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Proposer: Fiona O'Connor

Proposed Date: March 19, 2024

Comments: #299

CF mailing list link: Standard names: Propose new additions to the standard names table

Units: W/m2 (UFAA)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Downwelling radiation is radiation from above. It does not mean "net downward". The sign convention is that "upwelling" is positive upwards and "downwelling" is positive downwards. The term "longwave" means longwave 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. 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. This 3D ozone field acts as a reference ozone field in a diagnostic call to the model's radiation scheme. It is expressed in terms of mole fraction of ozone in air. It may be observation-based or model-derived. It may be from any time period. By using the same ozone reference in the diagnostic radiation call in two model simulations and calculating differences between the radiative flux diagnostics from the prognostic call to the radiation scheme and the diagnostic call to the radiation scheme with the ozone reference, an instantaneous radiative forcing for ozone can be calculated.

surface_downwelling_longwave_flux_in_air_assuming_clear_sky_and_reference_mole_fraction_of_ozone_in_air

accepted

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Proposer: Fiona O'Connor

Proposed Date: March 19, 2024

Comments: #299

CF mailing list link: Standard names: Propose new additions to the standard names table

Units: W/m2 (UFAA)

New Term

The surface called "surface" means the lower boundary of the atmosphere. Upwelling radiation is radiation from below. It does not mean "net upward". The sign convention is that "upwelling" is positive upwards and "downwelling" is positive downwards. The term "longwave" means longwave 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. 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. This 3D ozone field acts as a reference ozone field in a diagnostic call to the model's radiation scheme. It is expressed in terms of mole fraction of ozone in air. It may be observation-based or model-derived. It may be from any time period. By using the same ozone reference in the diagnostic radiation call in two model simulations and calculating differences between the radiative flux diagnostics from the prognostic call to the radiation scheme and the diagnostic call to the radiation scheme with the ozone reference, an instantaneous radiative forcing for ozone can be calculated.

under discussion

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Proposer:

Proposed Date: None

Comments:

CF mailing list link:

Units: K s-1 (KPRS)

Updated term description

sea_water_temperature_at_sea_floor

accepted

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Proposer: Jonathan Gregory & Lars Barring

Proposed Date: Jan. 10, 2024

Comments: #270

CF mailing list link: Classification of existing standard names for units_metadata

Units: K (UPKA)

Updated term description

Sea water temperature is the in situ temperature of the sea water. The temperature at the sea floor is that adjacent to the ocean bottom, which would be the deepest grid cell in an ocean model and within the benthic boundary layer for measurements. It is strongly recommended that a variable with this standard name should have a units_metadata attribute, with one of the values "on-scale" or "difference", whichever is appropriate for the data, because it is essential to know whether the temperature is on-scale (meaning relative to the origin of the scale indicated by the units) or refers to temperature differences (implying that the origin of the temperature scale is irrevelant), in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

tendency_of_sea_water_temperature_due_to_advection

accepted

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Proposer: Jonathan Gregory & Lars Barring

Proposed Date: Jan. 10, 2024

Comments: #270

CF mailing list link: Classification of existing standard names for units_metadata

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. 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. It is strongly recommended that a variable with this standard name should have the attribute units_metadata="temperature: difference", meaning that it refers to temperature differences and implying that the origin of the temperature scale is irrelevant, because it is essential to know whether a temperature is on-scale or a difference in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

tendency_of_sea_water_temperature_due_to_horizontal_mixing

accepted

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Proposer: Jonathan Gregory & Lars Barring

Proposed Date: Jan. 10, 2024

Comments: #270

CF mailing list link: Classification of existing standard names for units_metadata

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. It is strongly recommended that a variable with this standard name should have the attribute units_metadata="temperature: difference", meaning that it refers to temperature differences and implying that the origin of the temperature scale is irrelevant, because it is essential to know whether a temperature is on-scale or a difference in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

stagnation_temperature_in_air

accepted

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Proposer: Jonathan Gregory & Lars Barring

Proposed Date: Jan. 10, 2024

Comments: #270

CF mailing list link: Classification of existing standard names for units_metadata

Units: K (UPKA)

Updated term description

In thermodynamics and fluid mechanics, stagnation temperature is the temperature at a stagnation point in a fluid flow. At a stagnation point the speed of the fluid is zero and all of the kinetic energy has been converted to internal energy and is added to the local static enthalpy. In both compressible and incompressible fluid flow, the stagnation temperature is equal to the total temperature at all points on the streamline leading to the stagnation point. In aviation, stagnation temperature is known as total air temperature and is measured by a temperature probe mounted on the surface of the aircraft. The probe is designed to bring the air to rest relative to the aircraft. As the air is brought to rest, kinetic energy is converted to internal energy. The air is compressed and experiences an adiabatic increase in temperature. Therefore, total air temperature is higher than the static (or ambient) air temperature. Total air temperature is an essential input to an air data computer in order to enable computation of static air temperature and hence true airspeed. It is strongly recommended that a variable with this standard name should have a units_metadata attribute, with one of the values "on-scale" or "difference", whichever is appropriate for the data, because it is essential to know whether the temperature is on-scale (meaning relative to the origin of the scale indicated by the units) or refers to temperature differences (implying that the origin of the temperature scale is irrevelant), in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

product_of_northward_wind_and_air_temperature

accepted

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Proposer: Jonathan Gregory & Lars Barring

Proposed Date: Jan. 10, 2024

Comments: #270

CF mailing list link: Classification of existing standard names for units_metadata

Units: K m s-1 (KMTS)

Updated term description

"product_of_X_and_Y" means X*Y. Air temperature is the bulk temperature of the air, not the surface (skin) temperature. "Northward" indicates a vector component which is positive when directed northward (negative southward). 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.) It is strongly recommended that a variable with this standard name should have a units_metadata attribute, with one of the values "on-scale" or "difference", whichever is appropriate for the data, because it is essential to know whether the temperature is on-scale (meaning relative to the origin of the scale indicated by the units) or refers to temperature differences (implying that the origin of the temperature scale is irrevelant), in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

product_of_upward_air_velocity_and_air_temperature

accepted

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Proposer: Jonathan Gregory & Lars Barring

Proposed Date: Jan. 10, 2024

Comments: #270

CF mailing list link: Classification of existing standard names for units_metadata

Units: K m s-1 (KMTS)

Updated term description

"product_of_X_and_Y" means X*Y. Air temperature is the bulk temperature of the air, not the surface (skin) temperature. A velocity is a vector quantity. "Upward" indicates a vector component which is positive when directed upward (negative downward). Upward air velocity is the vertical component of the 3D air velocity vector. It is strongly recommended that a variable with this standard name should have a units_metadata attribute, with one of the values "on-scale" or "difference", whichever is appropriate for the data, because it is essential to know whether the temperature is on-scale (meaning relative to the origin of the scale indicated by the units) or refers to temperature differences (implying that the origin of the temperature scale is irrevelant), in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

air_temperature

accepted

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Proposer: Jonathan Gregory & Lars Barring

Proposed Date: Jan. 10, 2024

Comments: #270

CF mailing list link: Classification of existing standard names for units_metadata

Units: K (UPKA)

Updated term description

Air temperature is the bulk temperature of the air, not the surface (skin) temperature. It is strongly recommended that a variable with this standard name should have a units_metadata attribute, with one of the values "on-scale" or "difference", whichever is appropriate for the data, because it is essential to know whether the temperature is on-scale (meaning relative to the origin of the scale indicated by the units) or refers to temperature differences (implying that the origin of the temperature scale is irrevelant), in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

integral_wrt_depth_of_product_of_conservative_temperature_and_sea_water_density

accepted

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Proposer: Jonathan Gregory & Lars Barring

Proposed Date: Jan. 10, 2024

Comments: #270

CF mailing list link: Classification of existing standard names for units_metadata

Units: kg degree_C m-2 (DKM2)

Updated term description

The phrase "integral_wrt_X_of_Y" means int Y dX. To specify the limits of the integral the data variable should have an axis for X and associated coordinate bounds. If no axis for X is associated with the data variable, or 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 air the integral is assumed to be calculated over the full depth of the atmosphere. 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. 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. 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. It is strongly recommended that a variable with this standard name should have a units_metadata attribute, with one of the values "on-scale" or "difference", whichever is appropriate for the data, because it is essential to know whether the temperature is on-scale (meaning relative to the origin of the scale indicated by the units) or refers to temperature differences (implying that the origin of the temperature scale is irrevelant), in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

accepted

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Proposer: Jonathan Gregory & Lars Barring

Proposed Date: Jan. 10, 2024

Comments: #270

CF mailing list link: Classification of existing standard names for units_metadata

Units: K (UPKA)

Updated term description

virtual_temperature

accepted

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Proposer: Jonathan Gregory & Lars Barring

Proposed Date: Jan. 10, 2024

Comments: #270

CF mailing list link: Classification of existing standard names for units_metadata

Units: K (UPKA)

Updated term description

The virtual temperature of air is the temperature at which the dry air constituent of a parcel of moist air would have the same density as the moist air at the same pressure. It is strongly recommended that a variable with this standard name should have a units_metadata attribute, with one of the values "on-scale" or "difference", whichever is appropriate for the data, because it is essential to know whether the temperature is on-scale (meaning relative to the origin of the scale indicated by the units) or refers to temperature differences (implying that the origin of the temperature scale is irrevelant), in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

wet_bulb_potential_temperature

accepted

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Proposer: Jonathan Gregory & Lars Barring

Proposed Date: Jan. 10, 2024

Comments: #270

CF mailing list link: Classification of existing standard names for units_metadata

Units: K (UPKA)

Updated term description

Wet bulb potential temperature is the temperature a parcel of air would have if moved dry adiabatically until it reaches saturation and thereafter moist adiabatically to sea level pressure. It is strongly recommended that a variable with this standard name should have a units_metadata attribute, with one of the values "on-scale" or "difference", whichever is appropriate for the data, because it is essential to know whether the temperature is on-scale (meaning relative to the origin of the scale indicated by the units) or refers to temperature differences (implying that the origin of the temperature scale is irrevelant), in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

air_temperature_lapse_rate

accepted

View

Proposer: Jonathan Gregory & Lars Barring

Proposed Date: Jan. 10, 2024

Comments: #270

CF mailing list link: Classification of existing standard names for units_metadata

Units: K m-1 (DKPM)

Updated term description

Air temperature is the bulk temperature of the air, not the surface (skin) temperature. A lapse rate is the negative derivative of a quantity with respect to increasing height above the surface, or the (positive) derivative with respect to increasing depth. It is strongly recommended that a variable with this standard name should have the attribute units_metadata="temperature: difference", meaning that it refers to temperature differences and implying that the origin of the temperature scale is irrelevant, because it is essential to know whether a temperature is on-scale or a difference in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

covariance_over_longitude_of_northward_wind_and_air_temperature

accepted

View

Proposer: Jonathan Gregory & Lars Barring

Proposed Date: Jan. 10, 2024

Comments: #270

CF mailing list link: Classification of existing standard names for units_metadata

Units: K m s-1 (KMTS)

Updated term description

Covariance refers to the sample covariance rather than the population covariance. The quantity with standard name covariance_over_longitude_of_northward_wind_and_air_temperature is the covariance of the deviations of meridional air velocity and air temperature about their respective zonal mean values. The data variable must be accompanied by a vertical coordinate variable or scalar coordinate variable and is calculated on an isosurface of that vertical coordinate. "Northward" indicates a vector component which is positive when directed northward (negative southward). 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"). Air temperature is the bulk temperature of the air, not the surface (skin) temperature. It is strongly recommended that a variable with this standard name should have the attribute units_metadata="temperature: difference", meaning that it refers to temperature differences and implying that the origin of the temperature scale is irrelevant, because it is essential to know whether a temperature is on-scale or a difference in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

product_of_eastward_sea_water_velocity_and_temperature

accepted

View

Proposer: Jonathan Gregory & Lars Barring

Proposed Date: Jan. 10, 2024

Comments: #270

CF mailing list link: Classification of existing standard names for units_metadata

Units: K m s-1 (KMTS)

Updated term description

"product_of_X_and_Y" means X*Y. A velocity is a vector quantity. "Eastward" indicates a vector component which is positive when directed eastward (negative westward). It is strongly recommended that a variable with this standard name should have a units_metadata attribute, with one of the values "on-scale" or "difference", whichever is appropriate for the data, because it is essential to know whether the temperature is on-scale (meaning relative to the origin of the scale indicated by the units) or refers to temperature differences (implying that the origin of the temperature scale is irrevelant), in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

product_of_eastward_wind_and_air_temperature

accepted

View

Proposer: Jonathan Gregory & Lars Barring

Proposed Date: Jan. 10, 2024

Comments: #270

CF mailing list link: Classification of existing standard names for units_metadata

Units: K m s-1 (KMTS)

Updated term description

"product_of_X_and_Y" means X*Y. Air temperature is the bulk temperature of the air, not the surface (skin) temperature. "Eastward" indicates a vector component which is positive when directed eastward (negative westward). 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.) It is strongly recommended that a variable with this standard name should have a units_metadata attribute, with one of the values "on-scale" or "difference", whichever is appropriate for the data, because it is essential to know whether the temperature is on-scale (meaning relative to the origin of the scale indicated by the units) or refers to temperature differences (implying that the origin of the temperature scale is irrevelant), in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

product_of_northward_sea_water_velocity_and_temperature

accepted

View

Proposer: Jonathan Gregory & Lars Barring

Proposed Date: Jan. 10, 2024

Comments: #270

CF mailing list link: Classification of existing standard names for units_metadata

Units: K m s-1 (KMTS)

Updated term description

"product_of_X_and_Y" means X*Y. A velocity is a vector quantity. "Northward" indicates a vector component which is positive when directed northward (negative southward). It is strongly recommended that a variable with this standard name should have a units_metadata attribute, with one of the values "on-scale" or "difference", whichever is appropriate for the data, because it is essential to know whether the temperature is on-scale (meaning relative to the origin of the scale indicated by the units) or refers to temperature differences (implying that the origin of the temperature scale is irrevelant), in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

tendency_of_air_temperature_due_to_dry_convection

accepted

View

Proposer: Jonathan Gregory & Lars Barring

Proposed Date: Jan. 10, 2024

Comments: #270

CF mailing list link: Classification of existing standard names for units_metadata

Units: K s-1 (KPRS)

Updated term description

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. Air temperature is the bulk temperature of the air, not the surface (skin) temperature. It is strongly recommended that a variable with this standard name should have the attribute units_metadata="temperature: difference", meaning that it refers to temperature differences and implying that the origin of the temperature scale is irrelevant, because it is essential to know whether a temperature is on-scale or a difference in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

square_of_air_temperature

accepted

View

Proposer: Jonathan Gregory & Lars Barring

Proposed Date: Jan. 10, 2024

Comments: #270

CF mailing list link: Classification of existing standard names for units_metadata

Units: K2 (KLSQ)

Updated term description

"square_of_X" means X*X. Air temperature is the bulk temperature of the air, not the surface (skin) temperature. It is strongly recommended that a variable with this standard name should have a units_metadata attribute, with one of the values "on-scale" or "difference", whichever is appropriate for the data, because it is essential to know whether the temperature is on-scale (meaning relative to the origin of the scale indicated by the units) or refers to temperature differences (implying that the origin of the temperature scale is irrevelant), in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

toa_brightness_temperature

accepted

View

Proposer: Jonathan Gregory & Lars Barring

Proposed Date: Jan. 10, 2024

Comments: #270

CF mailing list link: Classification of existing standard names for units_metadata

Units: K (UPKA)

Updated term description

The brightness temperature of a body is the temperature of a black body which radiates the same power per unit solid angle per unit area. "toa" means top of atmosphere. It is strongly recommended that a variable with this standard name should have a units_metadata attribute, with one of the values "on-scale" or "difference", whichever is appropriate for the data, because it is essential to know whether the temperature is on-scale (meaning relative to the origin of the scale indicated by the units) or refers to temperature differences (implying that the origin of the temperature scale is irrevelant), in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

tendency_of_air_temperature_due_to_shortwave_heating

accepted

View

Proposer: Jonathan Gregory & Lars Barring

Proposed Date: Jan. 10, 2024

Comments: #270

CF mailing list link: Classification of existing standard names for units_metadata

Units: K s-1 (KPRS)

Updated term description

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. "shortwave" means shortwave radiation. Air temperature is the bulk temperature of the air, not the surface (skin) temperature. It is strongly recommended that a variable with this standard name should have the attribute units_metadata="temperature: difference", meaning that it refers to temperature differences and implying that the origin of the temperature scale is irrelevant, because it is essential to know whether a temperature is on-scale or a difference in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

tendency_of_air_temperature_due_to_longwave_heating_from_volcanic_ambient_aerosol_particles

accepted

View

Proposer: Jonathan Gregory & Lars Barring

Proposed Date: Jan. 10, 2024

Comments: #270

CF mailing list link: Classification of existing standard names for units_metadata

Units: K s-1 (KPRS)

Updated term description

The phrase "tendency_of_X" means derivative of X with respect to time. Air temperature is the bulk temperature of the air, not the surface (skin) temperature. 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 term "longwave" means longwave radiation. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. "Ambient_aerosol" means that the aerosol is measured or modelled at the ambient state of pressure, temperature and relative humidity that exists in its immediate environment. "Ambient aerosol particles" are aerosol particles that have taken up ambient water through hygroscopic growth. The extent of hygroscopic growth depends on the relative humidity and the composition of the particles. To specify the relative humidity and temperature at which the quantity described by the standard name applies, provide scalar coordinate variables with standard names of "relative_humidity" and "air_temperature". Volcanic aerosols include both volcanic ash and secondary products such as sulphate aerosols formed from gaseous emissions of volcanic eruptions. It is strongly recommended that a variable with this standard name should have the attribute units_metadata="temperature: difference", meaning that it refers to temperature differences and implying that the origin of the temperature scale is irrelevant, because it is essential to know whether a temperature is on-scale or a difference in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

accepted

View

Proposer: Jonathan Gregory & Lars Barring

Proposed Date: Jan. 10, 2024

Comments: #270

CF mailing list link: Classification of existing standard names for units_metadata

Units: K s-1 (KPRS)

Updated term description

soil_thermal_capacity

accepted

View

Proposer: Jonathan Gregory & Lars Barring

Proposed Date: Jan. 10, 2024

Comments: #270

CF mailing list link: Classification of existing standard names for units_metadata

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

Updated term description

Thermal capacity, or heat capacity, is the amount of heat energy required to increase the temperature of 1 kg of material by 1 K. It is a property of the material. It is strongly recommended that a variable with this standard name should have the attribute units_metadata="temperature: difference", meaning that it refers to temperature differences and implying that the origin of the temperature scale is irrelevant, because it is essential to know whether a temperature is on-scale or a difference in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

tendency_of_air_temperature_due_to_advection

accepted

View

Proposer: Jonathan Gregory & Lars Barring

Proposed Date: Jan. 10, 2024

Comments: #270

CF mailing list link: Classification of existing standard names for units_metadata

Units: K s-1 (KPRS)

Updated term description

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. Air temperature is the bulk temperature of the air, not the surface (skin) temperature. It is strongly recommended that a variable with this standard name should have the attribute units_metadata="temperature: difference", meaning that it refers to temperature differences and implying that the origin of the temperature scale is irrelevant, because it is essential to know whether a temperature is on-scale or a difference in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

fire_temperature

accepted

View

Proposer: Jonathan Gregory & Lars Barring

Proposed Date: Jan. 10, 2024

Comments: #270

CF mailing list link: Classification of existing standard names for units_metadata

Units: K (UPKA)

Updated term description

The overall temperature of a fire area due to contributions from smoldering and flaming biomass. A data variable containing the area affected by fire should be given the standard name fire_area. It is strongly recommended that a variable with this standard name should have a units_metadata attribute, with one of the values "on-scale" or "difference", whichever is appropriate for the data, because it is essential to know whether the temperature is on-scale (meaning relative to the origin of the scale indicated by the units) or refers to temperature differences (implying that the origin of the temperature scale is irrevelant), in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

sea_surface_temperature

accepted

View

Proposer: Jonathan Gregory & Lars Barring

Proposed Date: Jan. 10, 2024

Comments: #270

CF mailing list link: Classification of existing standard names for units_metadata

Units: K (UPKA)

Updated term description

Sea surface temperature is usually abbreviated as "SST". It is the temperature of sea water near the surface (including the part under sea-ice, if any). More specific terms, namely sea_surface_skin_temperature, sea_surface_subskin_temperature, and surface_temperature are available for the skin, subskin, and interface temperature. respectively. For the temperature of sea water at a particular depth or layer, a data variable of sea_water_temperature with a vertical coordinate axis should be used. It is strongly recommended that a variable with this standard name should have a units_metadata attribute, with one of the values "on-scale" or "difference", whichever is appropriate for the data, because it is essential to know whether the temperature is on-scale (meaning relative to the origin of the scale indicated by the units) or refers to temperature differences (implying that the origin of the temperature scale is irrevelant), in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

wind_chill_of_air_temperature

accepted

View

Proposer: Jonathan Gregory & Lars Barring

Proposed Date: Jan. 10, 2024

Comments: #270

CF mailing list link: Classification of existing standard names for units_metadata

Units: K (UPKA)

Updated term description

Air temperature is the bulk temperature of the air, not the surface (skin) temperature. The quantity with standard name wind_chill_of_air_temperature is the perceived air temperature when wind is factored in with the ambient air temperature (which makes it feel colder than the actual air temperature). Wind chill is based on the rate of heat loss from exposed skin caused by wind and cold. Wind chill temperature is only defined for ambient temperatures at or below 283.1 K and wind speeds above 1.34 m s-1. References: https://www.weather.gov/safety/cold-wind-chill-chart; WMO codes registry entry http://codes.wmo.int/grib2/codeflag/4.2/0-0-13. It is strongly recommended that a variable with this standard name should have a units_metadata attribute, with one of the values "on-scale" or "difference", whichever is appropriate for the data, because it is essential to know whether the temperature is on-scale (meaning relative to the origin of the scale indicated by the units) or refers to temperature differences (implying that the origin of the temperature scale is irrevelant), in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

accepted

View

Proposer: Jonathan Gregory & Lars Barring

Proposed Date: Jan. 10, 2024

Comments: #270

CF mailing list link: Classification of existing standard names for units_metadata

Units: K s-1 (KPRS)

Updated term description

toa_brightness_temperature_assuming_clear_sky

accepted

View

Proposer: Jonathan Gregory & Lars Barring

Proposed Date: Jan. 10, 2024

Comments: #270

CF mailing list link: Classification of existing standard names for units_metadata

Units: K (UPKA)

Updated term description

The brightness temperature of a body is the temperature of a black body which radiates the same power per unit solid angle per unit area. 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. "toa" means top of atmosphere. It is strongly recommended that a variable with this standard name should have a units_metadata attribute, with one of the values "on-scale" or "difference", whichever is appropriate for the data, because it is essential to know whether the temperature is on-scale (meaning relative to the origin of the scale indicated by the units) or refers to temperature differences (implying that the origin of the temperature scale is irrevelant), in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

air_potential_temperature

accepted

View

Proposer: Beate Geyer/Ronny Petrik

Proposed Date: Aug. 20, 2019

Comments: #270

CF mailing list link: New description for air_potential_temperature

Units: K (UPKA)

Updated term description

Air potential temperature is the temperature a parcel of air would have if moved dry adiabatically to a standard pressure, typically representative of mean sea level pressure. To specify the standard pressure to which the quantity applies, provide a scalar coordinate variable with standard name reference_pressure. It is strongly recommended that a variable with this standard name should have a units_metadata attribute, with one of the values "on-scale" or "difference", whichever is appropriate for the data, because it is essential to know whether the temperature is on-scale (meaning relative to the origin of the scale indicated by the units) or refers to temperature differences (implying that the origin of the temperature scale is irrevelant), in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

air_equivalent_potential_temperature

accepted

View

Proposer: Beate Geyer/Ronny Petrik

Proposed Date: Aug. 20, 2019

Comments: #270

CF mailing list link: New description for equivalent_potential_temperature

Units: K (UPKA)

Updated term description

The "equivalent potential temperature" is a thermodynamic quantity, with its natural logarithm proportional to the entropy of moist air, that is conserved in a reversible moist adiabatic process. Reference: AMS Glossary http://glossary.ametsoc.org/wiki/Equivalent_potential_temperature. It is the temperature of a parcel of air if all the moisture contained in it were first condensed, releasing latent heat, before moving the parcel dry adiabatically to a standard pressure, typically representative of mean sea level pressure. To specify the standard pressure to which the quantity applies, provide a scalar coordinate variable with standard name reference_pressure. It is strongly recommended that a variable with this standard name should have a units_metadata attribute, with one of the values "on-scale" or "difference", whichever is appropriate for the data, because it is essential to know whether the temperature is on-scale (meaning relative to the origin of the scale indicated by the units) or refers to temperature differences (implying that the origin of the temperature scale is irrevelant), in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

air_equivalent_temperature

accepted

View

Proposer: Beate Geyer/Ronny Petrik

Proposed Date: Feb. 11, 2020

Comments: #270

CF mailing list link: New description for equivalent_temperature

Units: K (UPKA)

Updated term description

The equivalent temperature is the temperature that an air parcel would have if all water vapor were condensed at contstant pressure and the enthalpy released from the vapor used to heat the air. Reference: AMS Glossary http://glossary.ametsoc.org/wiki/Equivalent_temperature. It is the isobaric equivalent temperature and not the adiabatic equivalent temperature, also known as pseudoequivalent temperature, which has the standard name air_pseudo_equivalent_temperature. It is strongly recommended that a variable with this standard name should have a units_metadata attribute, with one of the values "on-scale" or "difference", whichever is appropriate for the data, because it is essential to know whether the temperature is on-scale (meaning relative to the origin of the scale indicated by the units) or refers to temperature differences (implying that the origin of the temperature scale is irrevelant), in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

ertel_potential_vorticity

accepted

View

Proposer: Beate Geyer/Ronny Petrik

Proposed Date: March 11, 2020

Comments: #270

CF mailing list link: New description for ertel_potential_vorticity

Units: K m2 kg-1 s-1 (KMSS)

Updated term description

The Ertel potential vorticity is the scalar product of the atmospheric absolute vorticity vector and the gradient of potential temperature. It is a conserved quantity in the absence of friction and heat sources [AMS Glossary, http://glossary.ametsoc.org/wiki/Ertel_potential_vorticity]. A frequently used simplification of the general Ertel potential vorticity considers the Earth rotation vector to have only a vertical component. Then, only the vertical contribution of the scalar product is calculated. It is strongly recommended that a variable with this standard name should have the attribute units_metadata="temperature: difference", meaning that it refers to temperature differences and implying that the origin of the temperature scale is irrelevant, because it is essential to know whether a temperature is on-scale or a difference in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

air_pseudo_equivalent_potential_temperature

accepted

View

Proposer: Beate Geyer/Ronny Petrik

Proposed Date: Feb. 11, 2020

Comments: #270

CF mailing list link: New description for pseudo_equivalent_potential_temperature

Units: K (UPKA)

Updated term description

The pseudoequivalent potential temperature is the temperature a parcel of air would have if it is expanded by a pseudoadiabatic (irreversible moist-adiabatic) process to zero pressure and afterwards compressed by a dry-adiabatic process to a standard pressure, typically representative of mean sea level pressure. Reference: AMS Glossary http://glossary.ametsoc.org/wiki/Pseudoequivalent_potential_temperature. A pseudoadiabatic process means that the liquid water that condenses is assumed to be removed as soon as it is formed. Reference: AMS Glossary http:/glossary.ametsoc.org/wiki/Pseudoadiabatic_process. To specify the standard pressure to which the quantity applies, provide a scalar coordinate variable with the standard name reference_pressure. It is strongly recommended that a variable with this standard name should have a units_metadata attribute, with one of the values "on-scale" or "difference", whichever is appropriate for the data, because it is essential to know whether the temperature is on-scale (meaning relative to the origin of the scale indicated by the units) or refers to temperature differences (implying that the origin of the temperature scale is irrevelant), in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

air_pseudo_equivalent_temperature

accepted

View

Proposer: Beate Geyer/Ronny Petrik

Proposed Date: Feb. 11, 2020

Comments: #270

CF mailing list link: New description for pseudo_equivalent_temperature

Units: K (UPKA)

Updated term description

The pseudoequivalent temperature is also known as the adiabatic equivalent temperature. It is the temperature that an air parcel would have after undergoing the following process: dry-adiabatic expansion until saturated; pseudoadiabatic expansion until all moisture is precipitated out; dry-adiabatic compression to the initial pressure. Reference: AMS Glossary http://glossary.ametsoc.org/wiki/Equivalent_temperature. This quantity is distinct from the isobaric equivalent temperature, also known as equivalent temperature, which has the standard name air_equivalent_temperature. It is strongly recommended that a variable with this standard name should have a units_metadata attribute, with one of the values "on-scale" or "difference", whichever is appropriate for the data, because it is essential to know whether the temperature is on-scale (meaning relative to the origin of the scale indicated by the units) or refers to temperature differences (implying that the origin of the temperature scale is irrevelant), in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

sea_water_potential_temperature

accepted

View

Proposer: Beate Geyer/Ronny Petrik

Proposed Date: Jan. 10, 2020

Comments: #270

CF mailing list link: New description for sea_water_potential_temperature

Units: K (UPKA)

Updated term description

Sea water potential temperature is the temperature a parcel of sea water would have if moved adiabatically to sea level pressure. It is strongly recommended that a variable with this standard name should have a units_metadata attribute, with one of the values "on-scale" or "difference", whichever is appropriate for the data, because it is essential to know whether the temperature is on-scale (meaning relative to the origin of the scale indicated by the units) or refers to temperature differences (implying that the origin of the temperature scale is irrevelant), in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

temperature_of_analysis_of_sea_water

accepted

View

Proposer: Andrew Barna

Proposed Date: July 3, 2020

Comments: #270

CF mailing list link: Standard name for measurement, or instrument temperature

Units: K (UPKA)

Updated term description

The temperature_of_analysis_of_sea_water is the reference temperature for the effects of temperature on the measurement of another variable. This temperature should be measured, but may have been calculated, or assumed. For example, the temperature of the sample when measuring pH, or the temperature of equilibration in the case of dissolved gases. The linkage between the data variable and the variable with a standard_name of temperature_of_analysis_of_sea_water is achieved using the ancillary_variables attribute on the data variable. It is strongly recommended that a variable with this standard name should have a units_metadata attribute, with one of the values "on-scale" or "difference", whichever is appropriate for the data, because it is essential to know whether the temperature is on-scale (meaning relative to the origin of the scale indicated by the units) or refers to temperature differences (implying that the origin of the temperature scale is irrevelant), in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

temperature_of_sensor_for_oxygen_in_sea_water

accepted

View

Proposer: Andrew Barna

Proposed Date: July 3, 2020

Comments: #270

CF mailing list link: Standard name for measurement, or instrument temperature

Units: K (UPKA)

Updated term description

Temperature_of_sensor_for_oxygen_in_sea_water is the instrument temperature used in calculating the concentration of oxygen in sea water; it is not a measurement of the ambient water temperature. It is strongly recommended that a variable with this standard name should have a units_metadata attribute, with one of the values "on-scale" or "difference", whichever is appropriate for the data, because it is essential to know whether the temperature is on-scale (meaning relative to the origin of the scale indicated by the units) or refers to temperature differences (implying that the origin of the temperature scale is irrevelant), in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

air_temperature_anomaly

accepted

View

Proposer: Francesca Eggleton

Proposed Date: Oct. 20, 2020

Comments: #270

CF mailing list link: Standard names: Adding reference epoch sentence to anomaly terms

Units: K (UPKA)

Updated term description

"anomaly" means difference from climatology. Air temperature is the bulk temperature of the air, not the surface (skin) temperature. It is strongly recommended that a variable with this standard name should have the attribute units_metadata="temperature: difference", meaning that it refers to temperature differences and implying that the origin of the temperature scale is irrelevant, because it is essential to know whether a temperature is on-scale or a difference in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

sea_water_temperature_anomaly

accepted

View

Proposer: Francesca Eggleton

Proposed Date: Oct. 20, 2020

Comments: #270

CF mailing list link: Standard names: Adding reference epoch sentence to anomaly terms

Units: K (UPKA)

Updated term description

The term "anomaly" means difference from climatology. Sea water temperature is the in situ temperature of the sea water. To specify the depth at which the temperature anomaly applies, use a vertical coordinate variable or scalar coordinate variable. It is strongly recommended that a variable with this standard name should have the attribute units_metadata="temperature: difference", meaning that it refers to temperature differences and implying that the origin of the temperature scale is irrelevant, because it is essential to know whether a temperature is on-scale or a difference in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

surface_temperature_anomaly

accepted

View

Proposer: Francesca Eggleton

Proposed Date: Oct. 20, 2020

Comments: #270

CF mailing list link: Standard names: Adding reference epoch sentence to anomaly terms

Units: K (UPKA)

Updated term description

The surface called "surface" means the lower boundary of the atmosphere. "anomaly" means difference from climatology. The surface temperature is the (skin) temperature at the interface, not the bulk temperature of the medium above or below. It is strongly recommended that a variable with this standard name should have the attribute units_metadata="temperature: difference", meaning that it refers to temperature differences and implying that the origin of the temperature scale is irrelevant, because it is essential to know whether a temperature is on-scale or a difference in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

ratio_of_sea_water_potential_temperature_anomaly_to_relaxation_timescale

accepted

View

Proposer: Francesca Eggleton

Proposed Date: Oct. 20, 2020

Comments: #270

CF mailing list link: Standard names: Adding reference epoch sentence to anomaly terms

Units: K s-1 (KPRS)

Updated term description

The quantity with standard name ratio_of_sea_water_potential_temperature_anomaly_to_relaxation_timescale is a correction term applied to modelled sea water potential temperature. The term is estimated as the deviation of model local sea water potential temperature from an observation-based climatology (e.g. World Ocean Database) weighted by a user-specified relaxation coefficient in s-1 (1/(relaxation timescale)). Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure. The phrase "ratio_of_X_to_Y" means X/Y. The term "anomaly" means difference from climatology. It is strongly recommended that a variable with this standard name should have the attribute units_metadata="temperature: difference", meaning that it refers to temperature differences and implying that the origin of the temperature scale is irrelevant, because it is essential to know whether a temperature is on-scale or a difference in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

brightness_temperature_anomaly

accepted

View

Proposer: Francesca Eggleton

Proposed Date: Oct. 20, 2020

Comments: #270

CF mailing list link: Standard names: Adding reference epoch sentence to anomaly terms

Units: K (UPKA)

Updated term description

The brightness temperature of a body is the temperature of a black body which radiates the same power per unit solid angle per unit area. "anomaly" means difference from climatology. It is strongly recommended that a variable with this standard name should have the attribute units_metadata="temperature: difference", meaning that it refers to temperature differences and implying that the origin of the temperature scale is irrelevant, because it is essential to know whether a temperature is on-scale or a difference in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).

specific_heat_capacity_of_frozen_ground

accepted

View

Proposer: Nick Brown & Michel Paquette

Proposed Date: May 4, 2021

Comments: #270

CF mailing list link: Standard names: improved permafrost characterization

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

Updated term description

accepted

View

Proposer: Markus Fiebig

Proposed Date: Sept. 22, 2021

Comments: Created by bulk upload

CF mailing list link: Standard names: particle optical properties

Units: m-1 (UPRM)

New Term

volume_scattering_coefficient_of_radiative_flux_in_air_due_to_pm2p5_ambient_aerosol_particles

accepted

View

Proposer: Markus Fiebig

Proposed Date: Sept. 22, 2021

Comments: Created by bulk upload

CF mailing list link: Standard names: particle optical properties

Units: m-1 (UPRM)

New Term

The volume scattering/absorption/attenuation coefficient is the fractional change of radiative flux per unit path length due to the stated process. Coefficients with canonical units of m2 s-1 i.e. multiplied by density have standard names with specific_ instead of volume_. A scattering_angle should not be specified with this quantity. The scattering/absorption/attenuation coefficient is assumed to be an integral over all wavelengths, unless a coordinate of radiation_wavelength is included to specify the wavelength. Radiative flux is the sum of shortwave and longwave radiative fluxes. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. "Ambient aerosol particles" are aerosol particles that have taken up ambient water through hygroscopic growth. The extent of hygroscopic growth depends on the relative humidity and the composition of the particles. To specify the relative humidity at which the sample was measured, provide a scalar coordinate variable with the standard name of "relative_humidity". 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. "Pm2p5 aerosol particles" means atmospheric particulate compounds with an aerodynamic diameter of less than or equal to 2.5 micrometers.

volume_backwards_scattering_coefficient_of_radiative_flux_in_air_due_to_pm10_dried_aerosol_particles_at_standard_temperature_and_pressure

accepted

View

Proposer: Markus Fiebig

Proposed Date: Sept. 22, 2021

Comments: Created by bulk upload

CF mailing list link: Standard names: particle optical properties

Units: m-1 (UPRM)

New Term

The volume scattering/absorption/attenuation coefficient is the fractional change of radiative flux per unit path length due to the stated process. Coefficients with canonical units of m2 s-1 i.e. multiplied by density have standard names with specific_ instead of volume_. Backwards scattering refers to the sum of scattering into all backward angles i.e. scattering_angle exceeds pi/2 radians. A scattering_angle should not be specified with this quantity. The scattering/absorption/attenuation coefficient is assumed to be an integral over all wavelengths, unless a coordinate of radiation_wavelength is included to specify the wavelength. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. "Dried_aerosol_particles" means that the aerosol sample has been dried from the ambient state before sizing, but that the dry state (relative humidity less than 40 per cent) has not necessarily been reached. To specify the relative humidity at which the sample was measured, provide a scalar coordinate variable with the standard name of "relative_humidity". 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. "Pm10 aerosol particles" means atmospheric particulate compounds with an aerodynamic diameter of less than or equal to 10 micrometers. "Standard_temperature_and_pressure" refer to a reference volume at 273.15 K temperature and 1013.25 hPa pressure.

volume_absorption_coefficient_of_radiative_flux_in_air_due_to_pm10_dried_aerosol_particles_at_standard_temperature_and_pressure

accepted

View

Proposer: Markus Fiebig

Proposed Date: Sept. 22, 2021

Comments: Created by bulk upload

CF mailing list link: Standard names: particle optical properties

Units: m-1 (UPRM)

New Term

The volume scattering/absorption/attenuation coefficient is the fractional change of radiative flux per unit path length due to the stated process. Coefficients with canonical units of m2 s-1 i.e. multiplied by density have standard names with specific_ instead of volume_. A scattering_angle should not be specified with this quantity. The scattering/absorption/attenuation coefficient is assumed to be an integral over all wavelengths, unless a coordinate of radiation_wavelength is included to specify the wavelength. Radiative flux is the sum of shortwave and longwave radiative fluxes. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. "Dried_aerosol_particles" means that the aerosol sample has been dried from the ambient state before sizing, but that the dry state (relative humidity less than 40 per cent) has not necessarily been reached. To specify the relative humidity at which the sample was measured, provide a scalar coordinate variable with the standard name of "relative_humidity". 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. "Pm10 aerosol particles" means atmospheric particulate compounds with an aerodynamic diameter of less than or equal to 10 micrometers. "Standard_temperature_and_pressure" refer to a reference volume at 273.15 K temperature and 1013.25 hPa pressure.

volume_absorption_coefficient_of_radiative_flux_in_air_due_to_pm2p5_dried_aerosol_particles_at_standard_temperature_and_pressure

accepted

View

Proposer: Markus Fiebig

Proposed Date: Sept. 22, 2021

Comments: Created by bulk upload

CF mailing list link: Standard names: particle optical properties

Units: m-1 (UPRM)

New Term

The volume scattering/absorption/attenuation coefficient is the fractional change of radiative flux per unit path length due to the stated process. Coefficients with canonical units of m2 s-1 i.e. multiplied by density have standard names with specific_ instead of volume_. A scattering_angle should not be specified with this quantity. The scattering/absorption/attenuation coefficient is assumed to be an integral over all wavelengths, unless a coordinate of radiation_wavelength is included to specify the wavelength. Radiative flux is the sum of shortwave and longwave radiative fluxes. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. "Dried_aerosol_particles" means that the aerosol sample has been dried from the ambient state before sizing, but that the dry state (relative humidity less than 40 per cent) has not necessarily been reached. To specify the relative humidity at which the sample was measured, provide a scalar coordinate variable with the standard name of "relative_humidity". 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. "Pm2p5 aerosol particles" means atmospheric particulate compounds with an aerodynamic diameter of less than or equal to 2.5 micrometers. "Standard_temperature_and_pressure" refer to a reference volume at 273.15 K temperature and 1013.25 hPa pressure.

volume_absorption_coefficient_of_radiative_flux_in_air_due_to_dry_aerosol_particles_at_standard_temperature_and_pressure

accepted

View

Proposer: Markus Fiebig

Proposed Date: Sept. 22, 2021

Comments: Created by bulk upload

CF mailing list link: Standard names: particle optical properties

Units: m-1 (UPRM)

New Term

The volume scattering/absorption/attenuation coefficient is the fractional change of radiative flux per unit path length due to the stated process. Coefficients with canonical units of m2 s-1 i.e. multiplied by density have standard names with specific_ instead of volume_. A scattering_angle should not be specified with this quantity. The scattering/absorption/attenuation coefficient is assumed to be an integral over all wavelengths, unless a coordinate of radiation_wavelength is included to specify the wavelength. Radiative flux is the sum of shortwave and longwave radiative fluxes. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. Aerosol particles take up ambient water (a process known as hygroscopic growth) depending on the relative humidity and the composition of the particles. "Dry aerosol particles" means aerosol particles without any water uptake. 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. "Standard_temperature_and_pressure" refer to a reference volume at 273.15 K temperature and 1013.25 hPa pressure.

accepted

View

Proposer: Markus Fiebig

Proposed Date: Sept. 22, 2021

Comments: Created by bulk upload

CF mailing list link: Standard names: particle optical properties

Units: m-1 (UPRM)

New Term

volume_absorption_coefficient_of_radiative_flux_in_air_due_to_pm2p5_dried_aerosol_particles

accepted

View

Proposer: Markus Fiebig

Proposed Date: Sept. 22, 2021

Comments: Created by bulk upload

CF mailing list link: Standard names: particle optical properties

Units: m-1 (UPRM)

New Term

The volume scattering/absorption/attenuation coefficient is the fractional change of radiative flux per unit path length due to the stated process. Coefficients with canonical units of m2 s-1 i.e. multiplied by density have standard names with specific_ instead of volume_. A scattering_angle should not be specified with this quantity. The scattering/absorption/attenuation coefficient is assumed to be an integral over all wavelengths, unless a coordinate of radiation_wavelength is included to specify the wavelength. Radiative flux is the sum of shortwave and longwave radiative fluxes. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. "Dried_aerosol_particles" means that the aerosol sample has been dried from the ambient state before sizing, but that the dry state (relative humidity less than 40 per cent) has not necessarily been reached. To specify the relative humidity at which the sample was measured, provide a scalar coordinate variable with the standard name of "relative_humidity". 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. "Pm2p5 aerosol particles" means atmospheric particulate compounds with an aerodynamic diameter of less than or equal to 2.5 micrometers.

volume_backwards_scattering_coefficient_of_radiative_flux_in_air_due_to_pm2p5_ambient_aerosol_particles

accepted

View

Proposer: Markus Fiebig

Proposed Date: Sept. 22, 2021

Comments: Created by bulk upload

CF mailing list link: Standard names: particle optical properties

Units: m-1 (UPRM)

New Term

The volume scattering/absorption/attenuation coefficient is the fractional change of radiative flux per unit path length due to the stated process. Coefficients with canonical units of m2 s-1 i.e. multiplied by density have standard names with specific_ instead of volume_. Backwards scattering refers to the sum of scattering into all backward angles i.e. scattering_angle exceeds pi/2 radians. A scattering_angle should not be specified with this quantity. The scattering/absorption/attenuation coefficient is assumed to be an integral over all wavelengths, unless a coordinate of radiation_wavelength is included to specify the wavelength. Radiative flux is the sum of shortwave and longwave radiative fluxes. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. "Ambient_aerosol" means that the aerosol is measured or modelled at the ambient state of pressure, temperature and relative humidity that exists in its immediate environment. "Ambient aerosol particles" are aerosol particles that have taken up ambient water through hygroscopic growth. The extent of hygroscopic growth depends on the relative humidity and the composition of the particles. To specify the relative humidity at which the sample was measured, provide a scalar coordinate variable with the standard name of "relative_humidity". 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. "Pm2p5 aerosol particles" means atmospheric particulate compounds with an aerodynamic diameter of less than or equal to 2.5 micrometers.

volume_absorption_coefficient_of_radiative_flux_in_air_due_to_pm10_ambient_aerosol_particles_at_standard_temperature_and_pressure

accepted

View

Proposer: Markus Fiebig

Proposed Date: Sept. 22, 2021

Comments: Created by bulk upload

CF mailing list link: Standard names: particle optical properties

Units: m-1 (UPRM)

New Term

The volume scattering/absorption/attenuation coefficient is the fractional change of radiative flux per unit path length due to the stated process. Coefficients with canonical units of m2 s-1 i.e. multiplied by density have standard names with specific_ instead of volume_. A scattering_angle should not be specified with this quantity. The scattering/absorption/attenuation coefficient is assumed to be an integral over all wavelengths, unless a coordinate of radiation_wavelength is included to specify the wavelength. Radiative flux is the sum of shortwave and longwave radiative fluxes. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. "Ambient aerosol particles" are aerosol particles that have taken up ambient water through hygroscopic growth. The extent of hygroscopic growth depends on the relative humidity and the composition of the particles. To specify the relative humidity at which the sample was measured, provide a scalar coordinate variable with the standard name of "relative_humidity". 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. "Pm10 aerosol particles" means atmospheric particulate compounds with an aerodynamic diameter of less than or equal to 10 micrometers. "Standard_temperature_and_pressure" refer to a reference volume at 273.15 K temperature and 1013.25 hPa pressure.

volume_absorption_coefficient_of_radiative_flux_in_air_due_to_pm1_dried_aerosol_particles_at_standard_temperature_and_pressure

accepted

View

Proposer: Markus Fiebig

Proposed Date: Sept. 22, 2021

Comments: Created by bulk upload

CF mailing list link: Standard names: particle optical properties

Units: m-1 (UPRM)

New Term

The volume scattering/absorption/attenuation coefficient is the fractional change of radiative flux per unit path length due to the stated process. Coefficients with canonical units of m2 s-1 i.e. multiplied by density have standard names with specific_ instead of volume_. A scattering_angle should not be specified with this quantity. The scattering/absorption/attenuation coefficient is assumed to be an integral over all wavelengths, unless a coordinate of radiation_wavelength is included to specify the wavelength. Radiative flux is the sum of shortwave and longwave radiative fluxes. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. "Dried_aerosol_particles" means that the aerosol sample has been dried from the ambient state before sizing, but that the dry state (relative humidity less than 40 per cent) has not necessarily been reached. To specify the relative humidity at which the sample was measured, provide a scalar coordinate variable with the standard name of "relative_humidity". 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. "Pm1 aerosol particles" means atmospheric particulate compounds with an aerodynamic diameter of less than or equal to 1 micrometers. "Standard_temperature_and_pressure" refer to a reference volume at 273.15 K temperature and 1013.25 hPa pressure.

accepted

View

Proposer: Markus Fiebig

Proposed Date: Sept. 22, 2021

Comments: Created by bulk upload

CF mailing list link: Standard names: particle optical properties

Units: m-1 (UPRM)

New Term

volume_backwards_scattering_coefficient_of_radiative_flux_in_air_due_to_pm2p5_ambient_aerosol_particles_at_standard_temperature_and_pressure

accepted

View

Proposer: Markus Fiebig

Proposed Date: Sept. 22, 2021

Comments: Created by bulk upload

CF mailing list link: Standard names: particle optical properties

Units: m-1 (UPRM)

New Term

The volume scattering/absorption/attenuation coefficient is the fractional change of radiative flux per unit path length due to the stated process. Coefficients with canonical units of m2 s-1 i.e. multiplied by density have standard names with specific_ instead of volume_. Backwards scattering refers to the sum of scattering into all backward angles i.e. scattering_angle exceeds pi/2 radians. A scattering_angle should not be specified with this quantity. The scattering/absorption/attenuation coefficient is assumed to be an integral over all wavelengths, unless a coordinate of radiation_wavelength is included to specify the wavelength. Radiative flux is the sum of shortwave and longwave radiative fluxes. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. "Ambient aerosol particles" are aerosol particles that have taken up ambient water through hygroscopic growth. The extent of hygroscopic growth depends on the relative humidity and the composition of the particles. To specify the relative humidity at which the sample was measured, provide a scalar coordinate variable with the standard name of "relative_humidity". 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. "Pm2p5 aerosol particles" means atmospheric particulate compounds with an aerodynamic diameter of less than or equal to 2.5 micrometers. "Standard_temperature_and_pressure" refer to a reference volume at 273.15 K temperature and 1013.25 hPa pressure.

volume_scattering_coefficient_of_radiative_flux_in_air_due_to_pm2p5_dried_aerosol_particles

accepted

View

Proposer: Markus Fiebig

Proposed Date: Sept. 22, 2021

Comments: Created by bulk upload

CF mailing list link: Standard names: particle optical properties

Units: m-1 (UPRM)

New Term

The volume scattering/absorption/attenuation coefficient is the fractional change of radiative flux per unit path length due to the stated process. Coefficients with canonical units of m2 s-1 i.e. multiplied by density have standard names with specific_ instead of volume_. A scattering_angle should not be specified with this quantity. The scattering/absorption/attenuation coefficient is assumed to be an integral over all wavelengths, unless a coordinate of radiation_wavelength is included to specify the wavelength. Radiative flux is the sum of shortwave and longwave radiative fluxes. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. "Dried_aerosol_particles" means that the aerosol sample has been dried from the ambient state before sizing, but that the dry state (relative humidity less than 40 per cent) has not necessarily been reached. To specify the relative humidity at which the sample was measured, provide a scalar coordinate variable with the standard name of "relative_humidity". 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. "Pm10 aerosol particles" means atmospheric particulate compounds with an aerodynamic diameter of less than or equal to 10 micrometers.

volume_backwards_scattering_coefficient_of_radiative_flux_in_air_due_to_pm2p5_dried_aerosol_particles_at_standard_temperature_and_pressure

accepted

View

Proposer: Markus Fiebig

Proposed Date: Sept. 22, 2021

Comments: Created by bulk upload

CF mailing list link: Standard names: particle optical properties

Units: m-1 (UPRM)

New Term

The volume scattering/absorption/attenuation coefficient is the fractional change of radiative flux per unit path length due to the stated process. Coefficients with canonical units of m2 s-1 i.e. multiplied by density have standard names with specific_ instead of volume_. Backwards scattering refers to the sum of scattering into all backward angles i.e. scattering_angle exceeds pi/2 radians. A scattering_angle should not be specified with this quantity. The scattering/absorption/attenuation coefficient is assumed to be an integral over all wavelengths, unless a coordinate of radiation_wavelength is included to specify the wavelength. Radiative flux is the sum of shortwave and longwave radiative fluxes. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. "Dried_aerosol_particles" means that the aerosol sample has been dried from the ambient state before sizing, but that the dry state (relative humidity less than 40 per cent) has not necessarily been reached. To specify the relative humidity at which the sample was measured, provide a scalar coordinate variable with the standard name of "relative_humidity". 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. "Pm2p5 aerosol particles" means atmospheric particulate compounds with an aerodynamic diameter of less than or equal to 2.5 micrometers. "Standard_temperature_and_pressure" refer to a reference volume at 273.15 K temperature and 1013.25 hPa pressure.

volume_backwards_scattering_coefficient_of_radiative_flux_in_air_due_to_dry_aerosol_particles_at_standard_temperature_and_pressure

accepted

View

Proposer: Markus Fiebig

Proposed Date: Sept. 22, 2021

Comments: Created by bulk upload

CF mailing list link: Standard names: particle optical properties

Units: m-1 (UPRM)

New Term

The volume scattering/absorption/attenuation coefficient is the fractional change of radiative flux per unit path length due to the stated process. Coefficients with canonical units of m2 s-1 i.e. multiplied by density have standard names with specific_ instead of volume_. Backwards scattering refers to the sum of scattering into all backward angles i.e. scattering_angle exceeds pi/2 radians. A scattering_angle should not be specified with this quantity. The scattering/absorption/attenuation coefficient is assumed to be an integral over all wavelengths, unless a coordinate of radiation_wavelength is included to specify the wavelength. Radiative flux is the sum of shortwave and longwave radiative fluxes. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. Aerosol particles take up ambient water (a process known as hygroscopic growth) depending on the relative humidity and the composition of the particles. "Dry aerosol particles" means aerosol particles without any water uptake. 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. "Standard_temperature_and_pressure" refer to a reference volume at 273.15 K temperature and 1013.25 hPa pressure.

volume_backwards_scattering_coefficient_of_radiative_flux_in_air_due_to_pm1_dry_aerosol_particles_at_standard_temperature_and_pressure

accepted

View

Proposer: Markus Fiebig

Proposed Date: Sept. 22, 2021

Comments: Created by bulk upload

CF mailing list link: Standard names: particle optical properties

Units: m-1 (UPRM)

New Term

The volume scattering/absorption/attenuation coefficient is the fractional change of radiative flux per unit path length due to the stated process. Coefficients with canonical units of m2 s-1 i.e. multiplied by density have standard names with specific_ instead of volume_. Backwards scattering refers to the sum of scattering into all backward angles i.e. scattering_angle exceeds pi/2 radians. A scattering_angle should not be specified with this quantity. The scattering/absorption/attenuation coefficient is assumed to be an integral over all wavelengths, unless a coordinate of radiation_wavelength is included to specify the wavelength. Radiative flux is the sum of shortwave and longwave radiative fluxes. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. Aerosol particles take up ambient water (a process known as hygroscopic growth) depending on the relative humidity and the composition of the particles. "Dry aerosol particles" means aerosol particles without any water uptake. 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. "Pm1 aerosol particles" means atmospheric particulate compounds with an aerodynamic diameter of less than or equal to 1 micrometers. "Standard_temperature_and_pressure" refer to a reference volume at 273.15 K temperature and 1013.25 hPa pressure.

volume_backwards_scattering_coefficient_of_radiative_flux_in_air_due_to_pm2p5_dry_aerosol_particles_at_standard_temperature_and_pressure

accepted

View

Proposer: Markus Fiebig

Proposed Date: Sept. 22, 2021

Comments: Created by bulk upload

CF mailing list link: Standard names: particle optical properties

Units: m-1 (UPRM)

New Term

The volume scattering/absorption/attenuation coefficient is the fractional change of radiative flux per unit path length due to the stated process. Coefficients with canonical units of m2 s-1 i.e. multiplied by density have standard names with specific_ instead of volume_. Backwards scattering refers to the sum of scattering into all backward angles i.e. scattering_angle exceeds pi/2 radians. A scattering_angle should not be specified with this quantity. The scattering/absorption/attenuation coefficient is assumed to be an integral over all wavelengths, unless a coordinate of radiation_wavelength is included to specify the wavelength. Radiative flux is the sum of shortwave and longwave radiative fluxes. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. Aerosol particles take up ambient water (a process known as hygroscopic growth) depending on the relative humidity and the composition of the particles. "Dry aerosol particles" means aerosol particles without any water uptake. 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. "Pm2p5 aerosol particles" means atmospheric particulate compounds with an aerodynamic diameter of less than or equal to 2.5 micrometers. "Standard_temperature_and_pressure" refer to a reference volume at 273.15 K temperature and 1013.25 hPa pressure.

volume_backwards_scattering_coefficient_of_radiative_flux_in_air_due_to_pm1_dried_aerosol_particles_at_standard_temperature_and_pressure

accepted

View

Proposer: Markus Fiebig

Proposed Date: Sept. 22, 2021

Comments: Created by bulk upload

CF mailing list link: Standard names: particle optical properties

Units: m-1 (UPRM)

New Term

The volume scattering/absorption/attenuation coefficient is the fractional change of radiative flux per unit path length due to the stated process. Coefficients with canonical units of m2 s-1 i.e. multiplied by density have standard names with specific_ instead of volume_. Backwards scattering refers to the sum of scattering into all backward angles i.e. scattering_angle exceeds pi/2 radians. A scattering_angle should not be specified with this quantity. The scattering/absorption/attenuation coefficient is assumed to be an integral over all wavelengths, unless a coordinate of radiation_wavelength is included to specify the wavelength. Radiative flux is the sum of shortwave and longwave radiative fluxes. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. "Dried_aerosol_particles" means that the aerosol sample has been dried from the ambient state before sizing, but that the dry state (relative humidity less than 40 per cent) has not necessarily been reached. To specify the relative humidity at which the sample was measured, provide a scalar coordinate variable with the standard name of "relative_humidity". 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. "Pm1 aerosol particles" means atmospheric particulate compounds with an aerodynamic diameter of less than or equal to 1 micrometers. "Standard_temperature_and_pressure" refer to a reference volume at 273.15 K temperature and 1013.25 hPa pressure.

accepted

View

Proposer: Markus Fiebig

Proposed Date: Sept. 22, 2021

Comments: Created by bulk upload

CF mailing list link: Standard names: particle optical properties

Units: m-1 (UPRM)

New Term

volume_backwards_scattering_coefficient_of_radiative_flux_in_air_due_to_pm10_aerosol_particles_at_standard_temperature_and_pressure

accepted

View

Proposer: Markus Fiebig

Proposed Date: Sept. 22, 2021

Comments: Created by bulk upload

CF mailing list link: Standard names: particle optical properties

Units: m-1 (UPRM)

New Term

The volume scattering/absorption/attenuation coefficient is the fractional change of radiative flux per unit path length due to the stated process. Coefficients with canonical units of m2 s-1 i.e. multiplied by density have standard names with specific_ instead of volume_. Backwards scattering refers to the sum of scattering into all backward angles i.e. scattering_angle exceeds pi/2 radians. A scattering_angle should not be specified with this quantity. The scattering/absorption/attenuation coefficient is assumed to be an integral over all wavelengths, unless a coordinate of radiation_wavelength is included to specify the wavelength. Radiative flux is the sum of shortwave and longwave radiative fluxes. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. To specify the relative humidity at which the sample was measured, provide a scalar coordinate variable with the standard name of "relative_humidity". 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. "Pm10 aerosol particles" means atmospheric particulate compounds with an aerodynamic diameter of less than or equal to 10 micrometers. "Standard_temperature_and_pressure" refer to a reference volume at 273.15 K temperature and 1013.25 hPa pressure.

volume_backwards_scattering_coefficient_of_radiative_flux_in_air_due_to_pm1_dry_aerosol_particles

accepted

View

Proposer: Markus Fiebig

Proposed Date: Sept. 22, 2021

Comments: Created by bulk upload

CF mailing list link: Standard names: particle optical properties

Units: m-1 (UPRM)

New Term

The volume scattering/absorption/attenuation coefficient is the fractional change of radiative flux per unit path length due to the stated process. Coefficients with canonical units of m2 s-1 i.e. multiplied by density have standard names with specific_ instead of volume_. Backwards scattering refers to the sum of scattering into all backward angles i.e. scattering_angle exceeds pi/2 radians. A scattering_angle should not be specified with this quantity. The scattering/absorption/attenuation coefficient is assumed to be an integral over all wavelengths, unless a coordinate of radiation_wavelength is included to specify the wavelength. Radiative flux is the sum of shortwave and longwave radiative fluxes. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. Aerosol particles take up ambient water (a process known as hygroscopic growth) depending on the relative humidity and the composition of the particles. "Dry aerosol particles" means aerosol particles without any water uptake. 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. "Pm1 aerosol particles" means atmospheric particulate compounds with an aerodynamic diameter of less than or equal to 1 micrometers.

volume_backwards_scattering_coefficient_of_radiative_flux_in_air_due_to_pm2p5_dry_aerosol_particles

accepted

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Proposer: Markus Fiebig

Proposed Date: Sept. 22, 2021

Comments: Created by bulk upload

CF mailing list link: Standard names: particle optical properties

Units: m-1 (UPRM)

New Term

The volume scattering/absorption/attenuation coefficient is the fractional change of radiative flux per unit path length due to the stated process. Coefficients with canonical units of m2 s-1 i.e. multiplied by density have standard names with specific_ instead of volume_. Backwards scattering refers to the sum of scattering into all backward angles i.e. scattering_angle exceeds pi/2 radians. A scattering_angle should not be specified with this quantity. The scattering/absorption/attenuation coefficient is assumed to be an integral over all wavelengths, unless a coordinate of radiation_wavelength is included to specify the wavelength. Radiative flux is the sum of shortwave and longwave radiative fluxes. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. Aerosol particles take up ambient water (a process known as hygroscopic growth) depending on the relative humidity and the composition of the particles. "Dry aerosol particles" means aerosol particles without any water uptake. 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. "Pm2p5 aerosol particles" means atmospheric particulate compounds with an aerodynamic diameter of less than or equal to 2.5 micrometers.

volume_scattering_coefficient_of_radiative_flux_in_air_due_to_pm1_dry_aerosol_particles

accepted

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Proposer: Markus Fiebig

Proposed Date: Sept. 22, 2021

Comments: Created by bulk upload

CF mailing list link: Standard names: particle optical properties

Units: m-1 (UPRM)

New Term

The volume scattering/absorption/attenuation coefficient is the fractional change of radiative flux per unit path length due to the stated process. Coefficients with canonical units of m2 s-1 i.e. multiplied by density have standard names with specific_ instead of volume_. A scattering_angle should not be specified with this quantity. The scattering/absorption/attenuation coefficient is assumed to be an integral over all wavelengths, unless a coordinate of radiation_wavelength is included to specify the wavelength. Radiative flux is the sum of shortwave and longwave radiative fluxes. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. Aerosol particles take up ambient water (a process known as hygroscopic growth) depending on the relative humidity and the composition of the particles. "Dry aerosol particles" means aerosol particles without any water uptake. 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. "Pm1 aerosol particles" means atmospheric particulate compounds with an aerodynamic diameter of less than or equal to 1 micrometers.

volume_scattering_coefficient_of_radiative_flux_in_air_due_to_pm10_dry_aerosol_particles

accepted

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Proposer: Markus Fiebig

Proposed Date: Sept. 22, 2021

Comments: Created by bulk upload

CF mailing list link: Standard names: particle optical properties

Units: m-1 (UPRM)

New Term

The volume scattering/absorption/attenuation coefficient is the fractional change of radiative flux per unit path length due to the stated process. Coefficients with canonical units of m2 s-1 i.e. multiplied by density have standard names with specific_ instead of volume_. A scattering_angle should not be specified with this quantity. The scattering/absorption/attenuation coefficient is assumed to be an integral over all wavelengths, unless a coordinate of radiation_wavelength is included to specify the wavelength. Radiative flux is the sum of shortwave and longwave radiative fluxes. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. Aerosol particles take up ambient water (a process known as hygroscopic growth) depending on the relative humidity and the composition of the particles. "Dry aerosol particles" means aerosol particles without any water uptake. 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. "Pm10 aerosol particles" means atmospheric particulate compounds with an aerodynamic diameter of less than or equal to 10 micrometers.

volume_absorption_coefficient_of_radiative_flux_in_air_due_to_pm2p5_ambient_aerosol_particles_at_standard_temperature_and_pressure

accepted

View

Proposer: Markus Fiebig

Proposed Date: Sept. 22, 2021

Comments: Created by bulk upload

CF mailing list link: Standard names: particle optical properties

Units: m-1 (UPRM)

New Term

The volume scattering/absorption/attenuation coefficient is the fractional change of radiative flux per unit path length due to the stated process. Coefficients with canonical units of m2 s-1 i.e. multiplied by density have standard names with specific_ instead of volume_. A scattering_angle should not be specified with this quantity. The scattering/absorption/attenuation coefficient is assumed to be an integral over all wavelengths, unless a coordinate of radiation_wavelength is included to specify the wavelength. Radiative flux is the sum of shortwave and longwave radiative fluxes. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. "Ambient aerosol particles" are aerosol particles that have taken up ambient water through hygroscopic growth. The extent of hygroscopic growth depends on the relative humidity and the composition of the particles. To specify the relative humidity at which the sample was measured, provide a scalar coordinate variable with the standard name of "relative_humidity". 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. "Pm2p5 aerosol particles" means atmospheric particulate compounds with an aerodynamic diameter of less than or equal to 2.5 micrometers. "Standard_temperature_and_pressure" refer to a reference volume at 273.15 K temperature and 1013.25 hPa pressure.

volume_absorption_coefficient_of_radiative_flux_in_air_due_to_pm2p5_dry_aerosol_particles_at_standard_temperature_and_pressure

accepted

View

Proposer: Markus Fiebig

Proposed Date: Sept. 22, 2021

Comments: Created by bulk upload

CF mailing list link: Standard names: particle optical properties

Units: m-1 (UPRM)

New Term

The volume scattering/absorption/attenuation coefficient is the fractional change of radiative flux per unit path length due to the stated process. Coefficients with canonical units of m2 s-1 i.e. multiplied by density have standard names with specific_ instead of volume_. A scattering_angle should not be specified with this quantity. The scattering/absorption/attenuation coefficient is assumed to be an integral over all wavelengths, unless a coordinate of radiation_wavelength is included to specify the wavelength. Radiative flux is the sum of shortwave and longwave radiative fluxes. "Aerosol" means the system of suspended liquid or solid particles in air (except cloud droplets) and their carrier gas, the air itself. Aerosol particles take up ambient water (a process known as hygroscopic growth) depending on the relative humidity and the composition of the particles. "Dry aerosol particles" means aerosol particles without any water uptake. 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. "Pm2p5 aerosol particles" means atmospheric particulate compounds with an aerodynamic diameter of less than or equal to 2.5 micrometers. "Standard_temperature_and_pressure" refer to a reference volume at 273.15 K temperature and 1013.25 hPa pressure.

water_evapotranspiration_flux

under discussion

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Proposer:

Proposed Date: None

Comments:

CF mailing list link:

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

Updated term description

Water means water in all phases. Evaporation is the conversion of liquid or solid into vapor. (The conversion of solid alone into vapor is called "sublimation".) The process of transpiration is not included. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. Unless indicated in the cell_methods attribute, a quantity is assumed to apply to the whole area of each horizontal grid box. Previously, the qualifier where_type was used to specify that the quantity applies only to the part of the grid box of the named type. Names containing the where_type qualifier are deprecated and newly created data should use the cell_methods attribute to indicate the horizontal area to which the quantity applies. In the versions before 56 transpiration was not mentioned and for versions 56 to 71 it was allowed to use water_evaporation_flux as an alias.

water_evapotranspiration_amount

under discussion

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Proposer: Beate Geyer

Proposed Date: June 18, 2021

Comments:

CF mailing list link: Standard names: Additional evapotranspiration names

Units: kg m-2 (KMP2)

New Term

Water means water in all phases. "Evapotranspiration" means all water vapor fluxes into the atmosphere from the surface: liquid evaporation, sublimation, and transpiration. Evaporation is the conversion of liquid or solid into vapor. Transpiration is the process by which water is carried from the roots of plants and evaporates from the stomata. (The conversion of solid alone into vapor is called "sublimation".) "Amount" means mass per unit area. Unless indicated in the cell_methods attribute, a quantity is assumed to apply to the whole area of each horizontal grid box.

water_potential_evapotranspiration_amount

under discussion

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Proposer: Beate Geyer

Proposed Date: June 18, 2021

Comments:

CF mailing list link: Standard names: Additional evapotranspiration names

Units: kg m-2 (KMP2)

New Term

"Water" means water in all phases. "Evapotranspiration" means all water vapor fluxes into the atmosphere from the surface: liquid evaporation, sublimation, and transpiration. Evaporation is the conversion of liquid or solid into vapor. Transpiration is the process by which water is carried from the roots of plants and evaporates from the stomata. (The conversion of solid alone into vapor is called "sublimation".) Potential evapotranspiration is the rate at which evaporation would take place under unaltered ambient conditions (temperature, relative humidity, wind, etc.) if the supply of water were unlimited, on the surface as if from an open water surface and unlimited in the soil. "Amount" means mass per unit area.

under discussion

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Proposer: Fernando Carvalho Pacheco & Fernando Santiago-Mandujano & Karin Bjorkman & Andrew Barna

Proposed Date: Oct. 19, 2021

Comments: Github #135 8.

CF mailing list link: Standard names: Second Batch - 19 variables from the Hawaii Ocean Time-series (HOT)

Units: kg m-3 (UKMC)

New Term

enrichment_of_15N_in_particulate_nitrogen_in_particles_in_sea_water_expressed_as_lowercase_delta_15N_relative_to_atmospheric_nitrogen

under discussion

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Proposer: Fernando Carvalho Pacheco & Fernando Santiago-Mandujano & Karin Bjorkman & Andrew Barna

Proposed Date: Oct. 19, 2021

Comments: Github #135 17. Is this the same as term 10? (Term 18 withdrawn as duplicate of term 11).

CF mailing list link: Standard names: Second Batch - 19 variables from the Hawaii Ocean Time-series (HOT)

Units: 1 (UUUU)

New Term

Isotopic enrichment of 15N, often called d15N or delta 15N (lower case delta), is a measure of the ratio of stable isotopes 15N:14N. Reference: Karl, D. (2018) Sediment trap flux measurements from the Hawaii Ocean Time-Series (HOT) project at station ALOHA. Biological and Chemical Oceanography Data Management Office (BCO-DMO). doi:10.1575/1912/bco-dmo.737393.1.

mass_concentration_of_phycoerythrin_10_in_sea_water

under discussion

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Proposer: Fernando Carvalho Pacheco & Fernando Santiago-Mandujano & Karin Bjorkman & Andrew Barna

Proposed Date: Oct. 19, 2021

Comments: Github #135 9.

CF mailing list link: Standard names: Second Batch - 19 variables from the Hawaii Ocean Time-series (HOT)

Units: kg m-3 (UKMC)

New Term

under discussion

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Proposer: Martin Juckes

Proposed Date: April 24, 2019

Comments:

CF mailing list link: Some standard name updates to improve consistency.

Units: W m-2 (UFAA)

Term change from Term: surface_net_downward_longwave_dust_ambient_aerosol_particles_direct_radiative_effect_assuming_clear_sky

No term set!

bedrock_depth_below_ground_level

acoustic_inertia_in_sea_water

acoustic_proportion_occupied_in_sea_water

acoustic_index_of_aggregation_in_sea_water

acoustic_equivalent_area_in_sea_water

acoustic_centre_of_mass_in_sea_water

received_power_of_radio_wave_in_air_scattered_by_air

radio_signal_roundtrip_travel_time_in_air

spectral_width_of_radio_wave_in_air_scattered_by_air

upwelling_shortwave_flux_in_air_assuming_clear_sky_and_reference_mole_fraction_of_ozone_in_air

downwelling_longwave_flux_in_air_assuming_clear_sky_and_reference_mole_fraction_of_ozone_in_air

upwelling_longwave_flux_in_air_assuming_clear_sky_and_reference_mole_fraction_of_ozone_in_air

reference_mole_fraction_of_ozone_in_air

toa_outgoing_shortwave_flux_assuming_clear_sky_and_reference_mole_fraction_of_ozone_in_air

surface_upwelling_shortwave_flux_in_air_assuming_clear_sky_and_reference_mole_fraction_of_ozone_in_air

upwelling_longwave_flux_in_air_assuming_clear_sky_and_reference_mole_fraction_of_ozone_in_air

surface_downwelling_shortwave_flux_in_air_assuming_clear_sky_and_reference_mole_fraction_of_ozone_in_air

surface_downwelling_longwave_flux_in_air_assuming_clear_sky_and_reference_mole_fraction_of_ozone_in_air

surface_downwelling_longwave_flux_in_air_assuming_clear_sky_and_reference_mole_fraction_of_ozone_in_air

upwelling_shortwave_flux_in_air_assuming_clear_sky_and_reference_mole_fraction_of_ozone_in_air

surface_upwelling_longwave_flux_in_air_assuming_clear_sky_and_reference_mole_fraction_of_ozone_in_air

toa_outgoing_shortwave_flux_assuming_clear_sky_and_reference_mole_fraction_of_ozone_in_air

surface_downwelling_shortwave_flux_in_air_assuming_clear_sky_and_reference_mole_fraction_of_ozone_in_air

downwelling_shortwave_flux_in_air_assuming_clear_sky_and_reference_mole_fraction_of_ozone_in_air

toa_outgoing_longwave_flux_assuming_clear_sky_and_reference_mole_fraction_of_ozone_in_air

surface_upwelling_shortwave_flux_in_air_assuming_clear_sky_and_reference_mole_fraction_of_ozone_in_air

toa_outgoing_longwave_flux_assuming_clear_sky_and_reference_mole_fraction_of_ozone_in_air

downwelling_shortwave_flux_in_air_assuming_clear_sky_and_reference_mole_fraction_of_ozone_in_air

downwelling_longwave_flux_in_air_assuming_clear_sky_and_reference_mole_fraction_of_ozone_in_air

sea_surface_height_amplitude_due_to_invert_barometer

sea_surface_wave_energy_flux

sea_surface_height_amplitude_due_to_load_tide

sea_surface_height_amplitude_due_to_ocean_tide

non_tidal_non_ib_elevation_of_sea_surface_height

aragonite_saturation_state_in_sea_water

upward_heat_flux_at_base_of_grounded_ice_sheet

change_over_time_in_sea_water_conservative_temperature

vegetation_roughtness_length

lwe_frozen_precipitation_rate

ratio_of_sea_water_potential_temperature_anomaly_to_relaxation_timescale

sea_water_temperature_at_sea_floor

tendency_of_sea_water_temperature_due_to_advection

tendency_of_sea_water_temperature_due_to_horizontal_mixing

stagnation_temperature_in_air

product_of_northward_wind_and_air_temperature

product_of_upward_air_velocity_and_air_temperature

air_temperature

integral_wrt_depth_of_product_of_conservative_temperature_and_sea_water_density

integral_wrt_depth_of_product_of_potential_temperature_and_sea_water_density

integral_wrt_depth_of_sea_water_temperature

air_temperature_at_cloud_top

integral_wrt_time_of_air_temperature_deficit

air_temperature_at_effective_cloud_top_defined_by_infrared_radiation

integral_wrt_time_of_air_temperature_excess

air_temperature_threshold

atmosphere_stability_showalter_index

sea_water_added_conservative_temperature

sea_water_added_potential_temperature

sea_water_redistributed_conservative_temperature

sea_water_redistributed_potential_temperature

universal_thermal_comfort_index

canopy_temperature

change_over_time_in_sea_water_temperature

dew_point_depression

dew_point_temperature

difference_between_sea_surface_temperature_and_air_temperature

dynamic_tropopause_potential_temperature

tendency_of_air_temperature_due_to_convection

freezing_temperature_of_sea_water

heat_index_of_air_temperature

land_ice_basal_temperature

land_ice_temperature

tendency_of_air_temperature_due_to_longwave_heating

sea_ice_basal_temperature

sea_ice_surface_temperature

sea_ice_temperature

tendency_of_air_temperature_due_to_moist_convection

sea_surface_skin_temperature