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[CF-metadata] proposed new ocean standard names to support CMIP6

From: Jonathan Gregory <j.m.gregory>
Date: Fri, 30 Jan 2015 18:07:19 +0000

Dear all

Stephen Griffies and I propose some new standard_names, detailed below, for
ocean models participating in CMIP6. These are quantities which have been
included in the list of diagnostics proposed by the CLIVAR Ocean Model
Development Panel. The names are in the following groups:

miscellaneous - there are four of these
X_at_sea_floor, where X is temperature or salinity. There are two varieties
  of temperature, potential or conservative
integral_wrt_depth_of_product_of_sea_water_density_and_X
ocean_C_overturning_mass_streamfunction_due_to_P, where C is a vector
  component and P is a model process
northward_ocean_heat_transport_due_to_P
tendency_of_sea_water_X_expressed_as_X'[_due_to_P], where X is temperature
  and X' heat content, or X is salinity and X' salt content.

The proposed names are given below with units, short name of use for CMIP, and
a short description. The proposed CMIP short name is just for information -
this is not part of the CF standard. We have tried to make use of existing
patterns of CF names or extend them in natural ways. Comments welcome. Thanks.

Cheers

Jonathan


proposed CF standard name
units
CMIP/OMIP short name
description

Miscellaneous
=============

specific_heat_capacity_of_sea_water
Joule/(kg Kelvin)
cpocean
Specific heat capacity of seawater, which is used in ocean models
to convert between model prognostic temperature (potential or conservative
temperature) and model heat content.

square_of_brunt_vaisala_frequency_in_sea_water
1/sec^2
obvfsq
Squared buoyancy frequency measuring ocean vertical stratification

ocean_tracer_diffusivity_due_to_parameterized_mesoscale_advection
m^2/sec
diftrblo
The diffusivity used for parameterized mesoscale eddy advection (e.g.,
Gent-McWilliams scheme).

tendency_of_ocean_eddy_kinetic_energy_content_due_to_parameterized_eddy_advection
Watt/m^2
tnkebto
The impacts on ocean mechanical energy arising from parameterized eddy
advection.


X_at_sea_floor
==============

sea_water_potential_temperature_at_sea_floor
Celsius
tob
Potential temperature adjacent to the ocean bottom (at the deepest grid cell

sea_water_salinity_at_sea_floor
1e-3
sob
Salinity adjacent to the ocean bottom (at the deepest grid cell in a model)
in a model)

integral_wrt_depth_of_product_of_sea_water_density_and_X
========================================================

integral_wrt_depth_of_product_of_sea_water_density_and_potential_temperature
(kg/m^2) * Celsius
opottempmint
Product of grid cell thickness with density and potential temperature,
summed over the depth of the ocean column. For Boussinesq
models, density is constant Boussinesq reference density
(reference_sea_water_density_for_boussinesq_approximation).

integral_wrt_depth_of_product_of_sea_water_density_and_conservative_temperature
(kg/m^2) * Celsius
ocontempmint
Product of grid cell thickness with density and conservative temperature,
summed over the depth of the ocean column. For Boussinesq
models, density is constant Boussinesq reference density
(reference_sea_water_density_for_boussinesq_approximation).

integral_wrt_depth_of_product_of_sea_water_density_and_salinity
(kg/m^2) * (1e-3)
somint
Product of grid cell thickness with density and salinity,
summed over the depth of the ocean column. For
Boussinesq models, density is constant Boussinesq reference density
(reference_sea_water_density_for_boussinesq_approximation).

ocean_C_overturning_mass_streamfunction_due_to_P
================================================

ocean_meridional_overturning_mass_streamfunction_due_to_parameterized_mesoscale_advection
kg/sec
msftmyzmpa (levels) and msftmyrhompa (density)
Contribution from parameterized mesoscale advection to the meridional
overturning mass streamfunction. 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.


ocean_y_overturning_mass_streamfunction_due_to_parameterized_mesoscale_advection
kg/sec
msftmympa (levels) and msftmyrhompa (density)
Contribution from parameterized mesoscale advection to the overturning
mass streamfunction. "y" indicates a vector component along the grid
y-axis, positive with increasing y. The specification of a physical
process by the phrase due_to_process means that the quantity named is
a single term in a sum of terms which together compose the general
quantity named by omitting the phrase.

ocean_meridional_overturning_mass_streamfunction_due_to_parameterized_submesoscale_advection
kg/sec
msftmyzsmpa
Contribution from parameterized submesoscale advection to the
meridional overturning mass streamfunction. 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.

ocean_y_overturning_mass_streamfunction_due_to_parameterized_submesoscale_advection
kg/sec
msftmysmpa
Contribution from parameterized submesoscale advection to the
overturning mass streamfunction. "y" indicates a vector component
along the grid y-axis, positive with increasing y. The specification
of a physical process by the phrase due_to_process means that the
quantity named is a single term in a sum of terms which together
compose the general quantity named by omitting the phrase.

northward_ocean_heat_transport_due_to_P
=======================================

northward_ocean_heat_transport_due_to_parameterized_mesoscale_advection
Watt
hfbasinpmadv
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. "Northward" indicates a vector component which is positive
when directed northward (negative southward). Northward transport by
parameterized mesoscale advection in an ocean model means the part due
to a scheme representing mesoscale eddy-induced effects not included
in the resolved model velocity field.


northward_ocean_heat_transport_due_to_parameterized_submesoscale_advection
Watt
hfbasinpsmadv
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. "Northward" indicates a vector component which is positive
when directed northward (negative southward). Northward transport by
parameterized submesoscale advection in an ocean model means the part
due to a scheme representing submesoscale eddy-induced advective
effects not included in the resolved model velocity field.


northward_ocean_heat_transport_due_to_parameterized_mesoscale_diffusion
Watt
hfbasinpmdiff
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. "Northward" indicates a vector component which is positive
when directed northward (negative southward). Northward transport by
parameterized mesoscale diffusion (e.g., neutral diffusion in the
interior and horizontal diffusion in the surface boundary layer) in an
ocean model means the part due to a scheme representing mesoscale eddy
diffusive effects not included in the resolved model velocity field.


northward_ocean_heat_transport_due_to_parameterized_eddy_advection
Watt
hfbasinpadv
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. "Northward" indicates a vector component which is positive
when directed northward (negative southward). Northward transport by
parameterized eddy advection (e.g., mesoscale, submesoscale, etc.) in
an ocean model means the part due to a scheme representing
parameterized eddy-induced advective effects not included in the
resolved model velocity field.

tendency_of_sea_water_X_expressed_as_X'[_due_to_P]
==================================================

tendency_of_sea_water_potential_temperature_expressed_as_heat_content
Watt/m^2
pottemptend
"Content" indicates a quantity per unit area. "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 all processes
impacting the heat content, with this tendency associated with models
using potential temperature as the prognostic model field.


tendency_of_sea_water_potential_temperature_expressed_as_heat_content_due_to_advection
Watt/m^2
opottempadvect
"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.

tendency_of_sea_water_potential_temperature_expressed_as_heat_content_due_to_parameterized_eddy_advection
Watt/m^2
opottempadvect
"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 any
parameterized eddy (e.g., submesoscale, mesoscale) advective processes
impacting the heat content, with this tendency measured by models
using potential temperature as the prognostic model field.


tendency_of_sea_water_potential_temperature_expressed_as_heat_content_due_to_parameterized_mesoscale_advection
Watt/m^2
opottemppmadvect
"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 parameterized
mesoscale eddy advective processes impacting the heat content, with
this tendency measured by models using potential temperature as the
prognostic model field.


tendency_of_sea_water_potential_temperature_expressed_as_heat_content_due_to_parameterized_mesoscale_diffusion
Watt/m^2
opottemppmdiff
"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 parameterized
mesoscale eddy diffusive processes (e.g., neutral diffusion in the
interior and horizontal diffusion in the surface boundary layer)
impacting the heat content, with this tendency measured by models
using potential temperature as the prognostic model field.


tendency_of_sea_water_potential_temperature_expressed_as_heat_content_due_to_parameterized_submesoscale_advection
Watt/m^2
opottemppsmadvect
"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 parameterized
submesoscale eddy advective processes impacting the heat content, with
this tendency measured by models using potential temperature as the
prognostic model field.


tendency_of_sea_water_potential_temperature_expressed_as_heat_content_due_to_parameterized_dianeutral_mixing
Watt/m^2
opottempdiff
"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 parameterized
dianeutral eddy advective processes impacting the heat content, with
this tendency measured by models using potential temperature as the
prognostic model field.



tendency_of_sea_water_conservative_temperature_expressed_as_heat_content
Watt/m^2
ocontemptend
"Content" indicates a quantity per unit area. "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 all processes
impacting the heat content, with this tendency associated with models
using conservative temperature as the prognostic model field.


tendency_of_sea_water_conservative_temperature_expressed_as_heat_content_due_to_advection
Watt/m^2
ocontempadvect
"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 conservative temperature as the prognostic
model field.

tendency_of_sea_water_conservative_temperature_expressed_as_heat_content_due_to_parameterized_eddy_advection
Watt/m^2
ocontempadvect
"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 any
parameterized eddy (e.g., submesoscale, mesoscale) advective processes
impacting the heat content, with this tendency measured by models
using conservative temperature as the prognostic model field.

tendency_of_sea_water_conservative_temperature_expressed_as_heat_content_due_to_parameterized_mesoscale_advection
Watt/m^2
ocontemppmadvect
"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 parameterized
mesoscale eddy advective processes impacting the heat content, with
this tendency measured by models using conservative temperature as the
prognostic model field.

tendency_of_sea_water_conservative_temperature_expressed_as_heat_content_due_to_parameterized_mesoscale_diffusion
Watt/m^2
ocontemppmdiff
"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 parameterized
mesoscale eddy diffusive processes (e.g., neutral diffusion in the
interior and horizontal diffusion in the surface boundary layer)
impacting the heat content, with this tendency measured by models
using conservative temperature as the prognostic model field.

tendency_of_sea_water_conservative_temperature_expressed_as_heat_content_due_to_parameterized_submesoscale_advection
Watt/m^2
ocontemppsmadvect
"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 parameterized
submesoscale eddy advective processes impacting the heat content, with
this tendency measured by models using conservative temperature as the
prognostic model field.


tendency_of_sea_water_conservative_temperature_expressed_as_heat_content_due_to_parameterized_dianeutral_mixing
Watt/m^2
ocontempdiff
"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 parameterized
dianeutral eddy advective processes impacting the heat content, with
this tendency measured by models using conservative temperature as the
prognostic model field.

tendency_of_sea_water_salinity_expressed_as_salt_content
kg/(m^2 sec)
osalttend
"Content" indicates a quantity per unit area. "tendency_of_X" means
derivative of X with respect to time. This tendency expresses the
time change in model salt content in a grid cell due to all processes
impacting the prognostic salinity field.

tendency_of_sea_water_salinity_expressed_as_salt_content_due_to_advection
kg/(m^2 sec)
osaltadvect
"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 salt content in a grid cell due to resolved
advective processes impacting the prognostic salinity.

tendency_of_sea_water_salinity_expressed_as_salt_content_due_to_parameterized_eddy_advection
kg/(m^2 sec)
osaltpadvect
"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 salt content in a grid cell due to any
parameterized eddy (e.g., submesoscale, mesoscale) advective processes
impacting the prognostic salinity.


tendency_of_sea_water_salinity_expressed_as_salt_content_due_to_parameterized_mesoscale_advection
kg/(m^2 sec)
osaltpmadvect
"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 salt content in a grid cell due to parameterized
mesoscale eddy advective processes impacting the prognostic salinity.


tendency_of_sea_water_salinity_expressed_as_salt_content_due_to_parameterized_mesoscale_diffusion
kg/(m^2 sec)
osaltpmdiff
"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 salt content in a grid cell due to parameterized
mesoscale eddy diffusive processes (e.g., neutral diffusion in the
interior and horizontal diffusion in the surface boundary layer)
impacting the prognostic salinity.

tendency_of_sea_water_salinity_expressed_as_salt_content_due_to_parameterized_submesoscale_advection
kg/(m^2 sec)
osaltpsmadvect
"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 salt content in a grid cell due to parameterized
submesoscale eddy advective processes impacting the prognostic
salinity.


tendency_of_sea_water_salinity_expressed_as_salt_content_due_to_parameterized_dianeutral_mixing
kg/(m^2 sec)
osaltdiff
"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 saltt content in a grid cell due to parameterized
dianeutral eddy advective processes impacting the prognostic
salinity.
Received on Fri Jan 30 2015 - 11:07:19 GMT

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