Created: March 20, 2016

Proposer: Jonathan Gregory / Stephen Griffies

Proposed Date: 2015-01-30

CMIP6 - OMIP

Change Date: March 20, 2016, 8:01 p.m.

Term: **tendency_of_sea_water_potential_temperature_expressed_as_heat_content_due_to_advection**

Unit: W m-2

Unit ref: UFAA

AMIP:

GRIB:

"Content" indicates a quantity per unit area. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. This tendency expresses the time change in model heat content in a grid cell due to resolved advective processes impacting the heat content, with this tendency measured by models using potential temperature as the prognostic model field.

Change Date: Oct. 11, 2017, 1 p.m.

Term: **tendency_of_sea_water_potential_temperature_expressed_as_heat_content_due_to_advection**

Unit: W m-2

Unit ref: UFAA

AMIP:

GRIB:

"Content" indicates a quantity per unit area.The phrase "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.

Change Date: Oct. 11, 2017, 1:01 p.m.

Term: **tendency_of_sea_water_potential_temperature_expressed_as_heat_content_due_to_advection**

Unit: W m-2

Unit ref: UFAA

AMIP:

GRIB:

"Content" indicates a quantity per unit area.The phrase "tendency_of_X" means derivative of X with respect to time. Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure. The phrase "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.

Change Date: Oct. 11, 2017, 1:03 p.m.

Term: **tendency_of_sea_water_potential_temperature_expressed_as_heat_content_due_to_advection**

Unit: W m-2

Unit ref: UFAA

AMIP:

GRIB:

"Content" indicates a quantity per unit area. The phrase "tendency_of_X" means derivative of X with respect to time. Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure. The phrase "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.

Change Date: Oct. 11, 2017, 1:04 p.m.

Term: **tendency_of_sea_water_potential_temperature_expressed_as_heat_content_due_to_advection**

Unit: W m-2

Unit ref: UFAA

AMIP:

GRIB:

"Content" indicates a quantity per unit area. The phrase "tendency_of_X" means derivative of X with respect to time. Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase.

Change Date: Nov. 27, 2017, 7:32 p.m.

Term: **tendency_of_sea_water_potential_temperature_expressed_as_heat_content_due_to_residual_mean_advection**

Unit: W m-2

Unit ref: UFAA

AMIP:

GRIB:

Change Date: Nov. 27, 2017, 7:36 p.m.

Term: **tendency_of_sea_water_potential_temperature_expressed_as_heat_content_due_to_residual_mean_advection**

Unit: W m-2

Unit ref: UFAA

AMIP:

GRIB:

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