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NetCDF

CC-BY-4.0: Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/

eng; USA

Air temperature is the bulk temperature of the air, not the surface (skin) temperature. [CF-Standard Name]; unit: K

In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. [CF-Standard Name]; unit: kg m-2 s-1

"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.) [CF-Standard Name]; unit: m s-1

"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.) [CF-Standard Name]; unit: m s-1

"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.) [CF-Standard Name]; unit: m s-1

surface_downwelling_longwave_flux_in_air [CF-Standard Name]; unit: W m-2

Speed is the magnitude of velocity. 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.) The wind speed is the magnitude of the wind velocity.[CF-Standard Name]; unit: m s-1

Air pressure at sea level is the quantity often abbreviated as MSLP or PMSL. Air pressure is the force per unit area which would be exerted when the moving gas molecules of which the air is composed strike a theoretical surface of any orientation. "Mean sea level" means the time mean of sea surface elevation at a given location over an arbitrary period sufficient to eliminate the tidal signals. [CF-Standard Name]; unit: Pa

"shortwave" means shortwave radiation. "toa" means top of atmosphere. 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. [CF-Standard Name]; unit: W m-2

The surface called "surface" means the lower boundary of the atmosphere. "Upward" indicates a vector component which is positive when directed upward (negative downward). The surface latent heat flux is the exchange of heat between the surface and the air on account of evaporation (including sublimation). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics.[CF-Standard Name]; unit: W m-2

Ocean Model Cell Thickness [CF-Standard Name]; unit: m

mole_concentration_of_dissolved_molecular_oxygen_in_sea_water [CF-Standard Name]; unit: mol m-3

Sea-Ice Volume North

Comment: total volume of sea ice in the Northern hemisphere

Used for mip era 'CMIP6' in CMOR MIP table(s): Table SImon, provided in frequency(s): mon, and for Realm(s): seaIce.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: 1e3 km3

Sea-Ice Volume North

Comment: total volume of sea ice in the Northern hemisphere

Used for mip era 'CMIP6' in CMOR MIP table(s): Table SImon, provided in frequency(s): mon, and for Realm(s): seaIce.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: 1e3 km3

cf:Depth is the vertical distance below the surface. 'sea_water_alkalinity_expressed_as_mole_equivalent' is the total alkalinity equivalent concentration (including carbonate, nitrogen, silicate, and borate components). 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. 'wrt' means with respect to. [CF-Standard Name]; unit: mol m-2 s-1

"Amount" means mass per unit area. [CF-Standard Name]; unit: kg m-2

air_pressure_at_convective_cloud_top [CF-Standard Name]; unit: Pa

Depth Integral of Product of Sea Water Density and Prognostic Salinity

Comment: Full column sum of density*cell thickness*prognostic salinity. If the model is Boussinesq, then use Boussinesq reference density for the density factor.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Emon; Table Oyr, provided in frequency(s): mon; yr, and for Realm(s): land; ocean; ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: g m-2

surface_downward_x_stress [CF-Standard Name]; unit: N m-2

mole_concentration_of_dissolved_molecular_oxygen_in_sea_water [CF-Standard Name]; unit: mol m-3

mole_concentration_of_nitrate_in_sea_water [CF-Standard Name]; unit: mol m-3

surface_downward_y_stress [CF-Standard Name]; unit: N m-2

cf:'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 asingle term in a sum of terms which together compose the general quantity named by omitting the phrase. 'tendency_of_X' means derivative of X with respect to time. 'Dissolved inorganic carbon' describes a family of chemical species in solution, including carbon dioxide, carbonic acid and the carbonate and bicarbonate anions. 'Dissolved inorganic carbon' is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. [CF-Standard Name]; unit: mol m-2 s-1

Total Dissolved Inorganic Phosphorus Concentration

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

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Omon; Table Oyr, provided in frequency(s): mon; yr, and for Realm(s): ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: mol m-3

alias: atmosphere_cloud_condensed_water_content

"condensed_water" means liquid and ice. "Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. [CF-Standard Name]; unit: kg m-2

surface_downward_mass_flux_of_carbon_dioxide_expressed_as_carbon [CF-Standard Name]; unit: kg m-2 s-1

mole_concentration_of_dissolved_iron_in_sea_water [CF-Standard Name]; unit: mol m-3

Dissolved Oxygen Concentration at Saturation

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

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Omon; Table Oyr, provided in frequency(s): mon; yr, and for Realm(s): ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: mol m-3

Geopotential is the sum of the specific gravitational potential energy relative to the geoid and the specific centripetal potential energy. Geopotential height is the geopotential divided by the standard acceleration due to gravity. It is numerically similar to the altitude (or geometric height) and not to the quantity with standard name height, which is relative to the surface. [CF-Standard Name]; unit: m

Sea Water Salinity at Sea Floor

Comment: Model prognostic salinity at bottom-most model grid cell

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Omon, provided in frequency(s): mon, and for Realm(s): ocean; ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: 0.001

Sea-Ice Speed

Comment: Speed of ice (i.e. mean absolute velocity) to account for back-and-forth movement of the ice

Used for mip era 'CMIP6' in CMOR MIP table(s): Table SIday; Table SImon, provided in frequency(s): day; mon, and for Realm(s): seaIce.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: m s-1

Mass fraction is used in the construction mass_fraction_of_X_in_Y, where X is a material constituent of Y. It means the ratio of the mass of Y to the mass of X (including Y). [CF-Standard Name]; unit: kg kg-1

Mole Concentration of Miscellaneous Phytoplankton expressed as Carbon in Sea Water

Used in MIP table(s): CMOR Table Oyr: Annual Mean Ocean Fields, Including Biogechemical Fields

Comment in standard_output document: carbon concentration from additional phytoplankton component alone

Code list created on 2012-10-16 out of standard_output document ( http://cmip-pcmdi.llnl.gov/cmip5/docs/standard_output.xlsx )

cf:Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction mole_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'.The phrase 'expressed_as' is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. 'Miscellaneous phytoplankton' are all those phytoplankton that are not diatoms, diazotrophs, calcareous phytoplankton, picophytoplankton or other seperately named components of the phytoplankton population. Phytoplankton are autotrophic prokaryotic or eukaryotic algae that live near the water surface where there is sufficient light to support photosynthesis. [CF-Standard Name]; unit: mol m-3

Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction mole_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen".The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Organic detritus are particles of debris from decaying plants and animals.; unit: mol m-3

sea_water_potential_temperature [CF-Standard Name]; unit: degC

cf:The phrase 'expressed_as' is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. In accordance with common usage in geophysical disciplines, 'flux' implies per unit area, called 'flux density' in physics. 'Sinking' is the gravitational settling of particulate matter suspended in a liquid. A sinking flux is positive downwards and is calculated relative to the movement of the surrounding fluid. Calcite is a mineral that is a polymorph of calcium carbonate. The chemical formula of calcite is CaCO3. Standard names also exist for aragonite, another polymorph of calcium carbonate. [CF-Standard Name]; unit: mol m-2 s-1

cf:The phrase 'expressed_as' is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. In accordance with common usage in geophysical disciplines, 'flux' implies per unit area, called 'flux density' in physics. 'Sinking' is the gravitational settling of particulate matter suspended in a liquid. A sinking flux is positive downwards and is calculated relative to the movement of the surrounding fluid. [CF-Standard Name]; unit: mol m-2 s-1

Tendency of Sea water Potential Temperature Expressed as Heat Content

Comment: Tendency of heat content for a grid cell from all processes. Reported only for models that use potential temperature as prognostic field.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Emon; Table Oyr, provided in frequency(s): mon; yr, and for Realm(s): land; ocean; ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: W m-2

mole_concentration_of_particulate_organic_matter_expressed_as_iron_in_sea_water [CF-Standard Name]; unit: mol m-3

"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.) [CF-Standard Name]; unit: m s-1

relative_humidity [CF-Standard Name]; unit: 0.01

Total Water Content of Soil Layer

Comment: in each soil layer, the mass of water in all phases, including ice. Reported as 'missing' for grid cells occupied entirely by 'sea'

Used for mip era 'CMIP6' in CMOR MIP table(s): Table 6hrPlevPt; Table Eday; Table Emon, provided in frequency(s): 6hr; day; mon, and for Realm(s): atmos; land.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg m-2

"Area fraction" means the fraction of horizontal area. To specify which area is quantified by a variable of "area_fraction", provide a coordinate variable or scalar coordinate variable of "area_type". Alternatively, if one is defined, use a more specific standard name of "X_area_fraction" for the fraction of horizontal area occupied by X. [CF-Standard Name]; unit: 0.01

"shortwave" means shortwave radiation. "toa" means top of atmosphere. The TOA incoming shortwave flux is the radiative flux from the sun i.e. the "downwelling" TOA shortwave flux. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. [CF-Standard Name]; unit: W m-2

surface_downward_x_stress [CF-Standard Name]; unit: N m-2

Surface Downward Net Flux of Nitrogen

Used in MIP table(s): CMOR Table Omon: Monthly Mean Ocean Fields, Including Biogechemical Fields

Code list created on 2012-10-16 out of standard_output document ( http://cmip-pcmdi.llnl.gov/cmip5/docs/standard_output.xlsx )

cf:"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 asingle term in a sum of terms which together compose the general quantity named by omitting the phrase. Deposition of nitrogen into the ocean is the sum of dry and wet depositionof nitrogen species onto the ocean surface from the atmosphere. 'Nitrogen fixation' means the production of ammonia from nitrogen gas. Organisms that fix nitrogen are termed 'diazotrophs'. Diazotrophic phytoplankton can fix atmospheric nitrogen, thus increasing the content of nitrogen in the ocean. Runoff is the liquid water which drains from land. If not specified, "runoff" refers to the sum of surface runoff and subsurface drainage."tendency_of_X" means derivative of X with respect to time. [CF-Standard Name]; unit: mol m-2 s-1

Upward Ocean Mass Transport [CF-Standard Name]; unit: kg s-1

surface_downwelling_shortwave_flux_in_air [CF-Standard Name]; unit: W m-2

The surface called "surface" means the lower boundary of the atmosphere. Runoff is the liquid water which drains from land. If not specified, "runoff" refers to the sum of surface runoff and subsurface drainage. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. [CF-Standard Name]; unit: kg m-2 s-1

surface_snow_thickness [CF-Standard Name]; unit: m

In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. [CF-Standard Name]; unit: kg m-2 s-1

Rate of Change of Dissolved Inorganic Silicon Due to Biological Activity

Comment: Net of biological terms in time rate of change of dissolved inorganic silicon

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Oyr, provided in frequency(s): yr, and for Realm(s): ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: mol m-3 s-1

Total Water Content of Soil Layer

Comment: in each soil layer, the mass of water in all phases, including ice. Reported as 'missing' for grid cells occupied entirely by 'sea'

Used for mip era 'CMIP6' in CMOR MIP table(s): Table 6hrPlevPt; Table Eday; Table Emon, provided in frequency(s): 6hr; day; mon, and for Realm(s): atmos; land.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg m-2

mole_concentration_of_dissolved_inorganic_carbon_in_sea_water [CF-Standard Name]; unit: mol m-3

"Area fraction" means the fraction of horizontal area. To specify which area is quantified by a variable of "area_fraction", provide a coordinate variable or scalar coordinate variable of "area_type". Alternatively, if one is defined, use a more specific standard name of "X_area_fraction" for the fraction of horizontal area occupied by X. [CF-Standard Name]; unit: 0.01

surface_upwelling_shortwave_flux_in_air_assuming_clear_sky [CF-Standard Name]; unit: W m-2

The surface called "surface" means the lower boundary of the atmosphere. Altitude is the (geometric) height above the geoid, which is the reference geopotential surface. The geoid is similar to mean sea level.[CF-Standard Name]; unit: m

Sea Water Mass Per Unit Area [CF-Standard Name]; unit: kg m-2

"X_area_fraction" means the fraction of horizontal area occupied by X. "X_area" means the horizontal area occupied by X within the grid cell.[CF-Standard Name]; unit: 0.01

Depth is the vertical distance below the surface. The root depth is maximum depth of soil reached by plant roots, from which they can extract moisture.[CF-Standard Name]; unit: m

Ocean Grid-Cell Volume [CF-Standard Name]; unit: m3

Air pressure at sea level is the quantity often abbreviated as MSLP or PMSL. Air pressure is the force per unit area which would be exerted when the moving gas molecules of which the air is composed strike a theoretical surface of any orientation. "Mean sea level" means the time mean of sea surface elevation at a given location over an arbitrary period sufficient to eliminate the tidal signals. [CF-Standard Name]; unit: Pa

toa_outgoing_shortwave_flux_assuming_clear_sky [CF-Standard Name]; unit: W m-2

Total Soil Moisture Content

Comment: the mass per unit area (summed over all soil layers) of water in all phases.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Lmon; Table day, provided in frequency(s): day; mon, and for Realm(s): atmos; land.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg m-2

relative_humidity [CF-Standard Name]; unit: 0.01

surface_downwelling_shortwave_flux_in_air [CF-Standard Name]; unit: W m-2

"Area fraction" means the fraction of horizontal area. To specify which area is quantified by a variable of "area_fraction", provide a coordinate variable or scalar coordinate variable of "area_type". Alternatively, if one is defined, use a more specific standard name of "X_area_fraction" for the fraction of horizontal area occupied by X. [CF-Standard Name]; unit: 0.01

Mass of Salt in Sea Ice per Area

Comment: Total mass of all salt in sea ice divided by grid-cell area

Used for mip era 'CMIP6' in CMOR MIP table(s): Table SImon, provided in frequency(s): mon, and for Realm(s): seaIce.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg m-2

sea_ice_thickness [CF-Standard Name]; unit: m

ocean_mass_content_of_dissolved_inorganic_carbon [CF-Standard Name]; unit: kg m-2

"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.) [CF-Standard Name]; unit: m s-1

The unit of salinity is PSU, which is dimensionless. The units attribute should be given as 1e-3 or 0.001 i.e. parts per thousand if salinity is in PSU. Sea surface salinity is often abbreviated as "SSS". For the salinity of sea water at a particular depth or layer, a data variable of sea_water_salinity with a vertical coordinate axis should be used. [CF-Standard Name]; unit: 0.001

"Area fraction" means the fraction of horizontal area. To specify which area is quantified by a variable of "area_fraction", provide a coordinate variable or scalar coordinate variable of "area_type". Alternatively, if one is defined, use a more specific standard name of "X_area_fraction" for the fraction of horizontal area occupied by X. [CF-Standard Name]; unit: 0.01

tendency_of_ocean_mole_content_of_elemental_nitrogen_due_to_fixation [CF-Standard Name]; unit: mol m-2 s-1

toa_outgoing_shortwave_flux_assuming_clear_sky [CF-Standard Name]; unit: W m-2

Air temperature is the bulk temperature of the air, not the surface (skin) temperature. [CF-Standard Name]; unit: K

sea_ice_y_velocity [CF-Standard Name]; unit: m s-1

integral_wrt_depth_of_tendency_of_sea_water_alkalinity_expressed_as_mole_equivalent [CF-Standard Name]; unit: mol m-2 s-1

Sea-Ice Area Flux Through Straits

Comment: net (sum of transport in all directions) sea ice area transport through the following four passages, positive into the Arctic Ocean 1. Fram Strait = (11.5W,81.3N to (10.5E,79.6N) 2. Canadian Archipelago = (128.2W,70.6N) to (59.3W,82.1N) 3. Barents opening = (16.8E,76.5N) to (19.2E,70.2N) 4. Bering Strait = (171W,66.2N) to (166W,65N)

Used for mip era 'CMIP6' in CMOR MIP table(s): Table SImon, provided in frequency(s): mon, and for Realm(s): seaIce.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: m2 s-1

surface_carbon_dioxide_partial_pressure_difference_between_sea_water_and_air [CF-Standard Name]; unit: Pa

Air temperature is the bulk temperature of the air, not the surface (skin) temperature. [CF-Standard Name]; unit: K

downwelling_longwave_flux_in_air [CF-Standard Name]; unit: W m-2

Mass Concentration of Diazotrophs expressed as Chlorophyll in Sea Water

Used in MIP table(s): CMOR Table Oyr: Annual Mean Ocean Fields, Including Biogechemical Fields

Comment in standard_output document: chlorophyll concentration from the diazotrophic phytoplankton component alone

Code list created on 2012-10-16 out of standard_output document ( http://cmip-pcmdi.llnl.gov/cmip5/docs/standard_output.xlsx )

cf:'Mass concentration' means mass per unit volume and is used in the construction mass_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The phrase 'expressed_as' is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Chlorophylls are the green pigments found in most plants, algae and cyanobacteria; their presence is essential for photosynthesis to take place. There are several different forms of chlorophyll that occur naturally. All contain a chlorin ring (chemical formula C20H16N4) which gives the green pigment and a side chain whose structure varies. The naturally occurring forms of chlorophyll contain between 35 and 55 carbon atoms. In ocean modelling, diazotrophs are phytoplankton of the phylum cyanobacteria distinct from other phytoplankton groups in their ability to fix nitrogen gas in addition to nitrate and ammonium. Phytoplankton are autotrophic prokaryotic or eukaryotic organisms that live near the water surface where there is sufficient light to support photosynthesis. [CF-Standard Name]; unit: kg m-3

surface_downward_mole_flux_of_molecular_oxygen [CF-Standard Name]; unit: mol m-2 s-1

mole_concentration_of_calcite_expressed_as_carbon_in_sea_water [CF-Standard Name]; unit: mol m-3

Mass Concentration of Diazotrophs expressed as Chlorophyll in Sea Water

Used in MIP table(s): CMOR Table Oyr: Annual Mean Ocean Fields, Including Biogechemical Fields

Comment in standard_output document: chlorophyll concentration from the diazotrophic phytoplankton component alone

Code list created on 2012-10-16 out of standard_output document ( http://cmip-pcmdi.llnl.gov/cmip5/docs/standard_output.xlsx )

cf:'Mass concentration' means mass per unit volume and is used in the construction mass_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The phrase 'expressed_as' is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Chlorophylls are the green pigments found in most plants, algae and cyanobacteria; their presence is essential for photosynthesis to take place. There are several different forms of chlorophyll that occur naturally. All contain a chlorin ring (chemical formula C20H16N4) which gives the green pigment and a side chain whose structure varies. The naturally occurring forms of chlorophyll contain between 35 and 55 carbon atoms. In ocean modelling, diazotrophs are phytoplankton of the phylum cyanobacteria distinct from other phytoplankton groups in their ability to fix nitrogen gas in addition to nitrate and ammonium. Phytoplankton are autotrophic prokaryotic or eukaryotic organisms that live near the water surface where there is sufficient light to support photosynthesis. [CF-Standard Name]; unit: kg m-3

Air temperature is the bulk temperature of the air, not the surface (skin) temperature. [CF-Standard Name]; unit: K

"Vertical momentum diffusivity" means the vertical component of the diffusivity of momentum due to motion which is not resolved on the grid scale of the model. [CF-Standard Name]; unit: m2 s-1

tendency_of_mole_concentration_of_silicon_in_sea_water_due_to_biological_production [CF-Standard Name]; unit: mol m-3 s-1

Tendency of Sea water Salinity Expressed as Salt Content Due to Parameterized Dianeutral Mixing

Comment: Tendency of salt content for a grid cell from parameterized dianeutral mixing.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Emon; Table Oyr, provided in frequency(s): mon; yr, and for Realm(s): land; ocean; ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg m-2 s-1

mole_concentration_of_dissolved_molecular_oxygen_in_sea_water [CF-Standard Name]; unit: mol m-3

tendency_of_mole_concentration_of_calcite_expressed_as_carbon_in_sea_water_due_to_biological_production [CF-Standard Name]; unit: mol m-3 s-1

"X_area_fraction" means the fraction of horizontal area occupied by X. "X_area" means the horizontal area occupied by X within the grid cell. Cloud area fraction is also called "cloud amount" and "cloud cover". The cloud area fraction is for the whole atmosphere column, as seen from the surface or the top of the atmosphere. The cloud area fraction in a layer of the atmosphere has the standard name cloud_area_fraction_in_atmosphere_layer. [CF-Standard Name]; unit: 0.01

"specific" means per unit mass. Specific humidity is the mass fraction of water vapor in (moist) air.[CF-Standard Name]; unit: 1

The surface called "surface" means the lower boundary of the atmosphere. The surface temperature is the (skin) temperature at the interface, not the bulk temperature of the medium above or below. [CF-Standard Name]; unit: K

surface_downwelling_shortwave_flux_in_air_assuming_clear_sky [CF-Standard Name]; unit: W m-2

Sea-Ice Heat Content per Unit Area

Comment: Heat content of all ice in grid cell divided by total grid-cell area. Water at 0 Celsius is assumed to have a heat content of 0 J. Does not include heat content of snow, but does include heat content of brine. Heat content is always negative, since both the sensible and the latent heat content of ice are less than that of water

Used for mip era 'CMIP6' in CMOR MIP table(s): Table SImon, provided in frequency(s): mon, and for Realm(s): seaIce.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: J m-2

Ambient Aerosol Optical Thickness at 440nm

Comment: AOD from the ambient aerosols (i.e., includes aerosol water). Does not include AOD from stratospheric aerosols if these are prescribed but includes other possible background aerosol types. Needs a comment attribute 'wavelength: 440nm'

Used for mip era 'CMIP6' in CMOR MIP table(s): Table AERmon, provided in frequency(s): mon, and for Realm(s): aerosol.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: 1

Iron Limitation of Diazotrophs

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

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Omon, provided in frequency(s): mon, and for Realm(s): ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: 1

mole_concentration_of_zooplankton_expressed_as_carbon_in_sea_water [CF-Standard Name]; unit: mol m-3

upward_y_stress_at_sea_ice_base [CF-Standard Name]; unit: N m-2

"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.) [CF-Standard Name]; unit: m s-1

Primary Organic Carbon Production by All Types of Phytoplankton

Comment: Vertically integrated total primary (organic carbon) production by phytoplankton. This should equal the sum of intpdiat+intpphymisc, but those individual components may be unavailable in some models.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Omon, provided in frequency(s): mon, and for Realm(s): ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: mol m-2 s-1

Mole Concentration of Diazotrophs Expressed as Carbon in Sea Water

Used in MIP table(s): CMOR Table Oyr: Annual Mean Ocean Fields, Including Biogechemical Fields

Comment in standard_output document: carbon concentration from the diazotrophic phytoplankton component alone

Code list created on 2012-10-16 out of standard_output document ( http://cmip-pcmdi.llnl.gov/cmip5/docs/standard_output.xlsx )

cf:Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction mole_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'.The phrase 'expressed_as' is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. In ocean modelling, diazotrophs are phytoplankton of the phylum cyanobacteria distinct from other phytoplankton groups in their ability to fix nitrogen gas in addition to nitrate and ammonium. Phytoplankton are autotrophic prokaryotic or eukaryotic organisms that live near the water surface where there is sufficient light to support photosynthesis. [CF-Standard Name]; unit: mol m-3

surface_downwelling_longwave_flux_in_air_assuming_clear_sky [CF-Standard Name]; unit: W m-2

"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.) [CF-Standard Name]; unit: m s-1

mole_concentration_of_phytoplankton_expressed_as_carbon_in_sea_water [CF-Standard Name]; unit: mol m-3

Nitrogen Loss to Sediments and Through Denitrification

Comment: '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. 'Denitrification' is the conversion of nitrate into gaseous compounds such as nitric oxide, nitrous oxide and molecular nitrogen which are then emitted to the atmosphere. 'Sedimentation' is the sinking of particulate matter to the floor of a body of water. 'tendency_of_X' means derivative of X with respect to time.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Omon, provided in frequency(s): mon, and for Realm(s): ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: mol m-2 s-1

mole_concentration_of_phytoplankton_expressed_as_phosphorus_in_sea_water [CF-Standard Name]; unit: mol m-3

"Area fraction" means the fraction of horizontal area. To specify which area is quantified by a variable of "area_fraction", provide a coordinate variable or scalar coordinate variable of "area_type". Alternatively, if one is defined, use a more specific standard name of "X_area_fraction" for the fraction of horizontal area occupied by X. [CF-Standard Name]; unit: 0.01

depth_at_shallowest_local_minimum_in_vertical_profile_of_mole_concentration_of_dissolved_molecular_oxygen_in_sea_water [CF-Standard Name]; unit: m

mole_concentration_of_particulate_organic_matter_expressed_as_nitrogen_in_sea_water [CF-Standard Name]; unit: mol m-3

Sea-Ice Extent North

Comment: Total area of all Northern-Hemisphere grid cells that are covered by at least 15 % areal fraction of sea ice

Used for mip era 'CMIP6' in CMOR MIP table(s): Table SImon, provided in frequency(s): mon, and for Realm(s): seaIce.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: 1e6 km2

"Area fraction" means the fraction of horizontal area. To specify which area is quantified by a variable of "area_fraction", provide a coordinate variable or scalar coordinate variable of "area_type". Alternatively, if one is defined, use a more specific standard name of "X_area_fraction" for the fraction of horizontal area occupied by X. [CF-Standard Name]; unit: 0.01

surface_upwelling_shortwave_flux_in_air_assuming_clear_sky [CF-Standard Name]; unit: W m-2

toa_outgoing_shortwave_flux_assuming_clear_sky [CF-Standard Name]; unit: W m-2

Air temperature is the bulk temperature of the air, not the surface (skin) temperature. [CF-Standard Name]; unit: K

The surface called "surface" means the lower boundary of the atmosphere. "Upward" indicates a vector component which is positive when directed upward (negative downward). The surface sensible heat flux, also called "turbulent" heat flux, is the exchange of heat between the surface and the air by motion of air. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics.[CF-Standard Name]; unit: W m-2

Air temperature is the bulk temperature of the air, not the surface (skin) temperature. [CF-Standard Name]; unit: K

Air temperature is the bulk temperature of the air, not the surface (skin) temperature. [CF-Standard Name]; unit: K

Speed is the magnitude of velocity. 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.) The wind speed is the magnitude of the wind velocity.[CF-Standard Name]; unit: m s-1

"specific" means per unit mass. Specific humidity is the mass fraction of water vapor in (moist) air.[CF-Standard Name]; unit: 1

"specific" means per unit mass. Specific humidity is the mass fraction of water vapor in (moist) air.[CF-Standard Name]; unit: 1

Air temperature is the bulk temperature of the air, not the surface (skin) temperature. [CF-Standard Name]; unit: K

In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. [CF-Standard Name]; unit: kg m-2 s-1

sea_ice_area_fraction [CF-Standard Name]; unit: 0.01

mole_concentration_of_phytoplankton_expressed_as_carbon_in_sea_water [CF-Standard Name]; unit: mol m-3

Upwelling Clear-Sky Shortwave Radiation [CF-Standard Name]; unit: W m-2

"longwave" means longwave radiation. Upwelling radiation is radiation from below. It does not mean "net upward". 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. [CF-Standard Name]; unit: W m-2

Upwelling Clear-Sky Longwave Radiation 4XCO2 Atmosphere [CF-Standard Name]; unit: W m-2

surface_downward_y_stress [CF-Standard Name]; unit: N m-2

tendency_of_ocean_mole_content_of_iron_due_to_deposition_and_runoff_and_sediment_dissolution [CF-Standard Name]; unit: mol m-2 s-1

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. "longwave" means longwave radiation. "toa" means top of atmosphere. The TOA outgoing longwave flux is the upwelling thermal radiative flux, often called the "outgoing longwave radiation" or "OLR". In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. [CF-Standard Name]; unit: W m-2

The surface called "surface" means the lower boundary of the atmosphere.[CF-Standard Name]; unit: not filled

"specific" means per unit mass. Specific humidity is the mass fraction of water vapor in (moist) air.[CF-Standard Name]; unit: 1

Sea Water Pressure at Sea floor [CF-Standard Name]; unit: Pa

Ocean Mixed Layer Thickness Defined by Sigma T [CF-Standard Name]; unit: m

Air temperature is the bulk temperature of the air, not the surface (skin) temperature. [CF-Standard Name]; unit: K

tendency_of_ocean_mole_content_of_dissolved_inorganic_carbon [CF-Standard Name]; unit: mol m-2 s-1

Phosphorus Production

Comment: Vertically integrated biogenic phosphorus production

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Omon, provided in frequency(s): mon, and for Realm(s): ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: mol m-2 s-1

The surface called "surface" means the lower boundary of the atmosphere. "Downward" indicates a vector component which is positive when directed downward (negative upward). The surface sensible heat flux, also called "turbulent" heat flux, is the exchange of heat between the surface and the air by motion of air. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics.[CF-Standard Name]; unit: W m-2

mass_concentration_of_phytoplankton_expressed_as_chlorophyll_in_sea_water [CF-Standard Name]; unit: kg m-3

Snow Evaporation

Comment: Water here 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'.) 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.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Eday, provided in frequency(s): day, and for Realm(s): land.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg m-2 s-1

In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. [CF-Standard Name]; unit: kg m-2 s-1

"Area fraction" means the fraction of horizontal area. To specify which area is quantified by a variable of "area_fraction", provide a coordinate variable or scalar coordinate variable of "area_type". Alternatively, if one is defined, use a more specific standard name of "X_area_fraction" for the fraction of horizontal area occupied by X. [CF-Standard Name]; unit: 0.01

cf:In accordance with common usage in geophysical disciplines, 'flux' implies per unit area, called 'flux density' in physics. 'Sinking' is the gravitational settling of particulate matter suspended in a liquid. A sinking flux is positive downwards and is calculated relative to the movement of the surrounding fluid. [CF-Standard Name]; unit: mol m-2 s-1

alias: water_flux_into_ocean

"Water" means water in all phases. The water flux into sea water is the freshwater entering as a result of precipitation, evaporation, river inflow, sea ice effects and water flux relaxation and correction (if applied). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. [CF-Standard Name]; unit: kg m-2 s-1

Total Water Content of Soil Layer

Comment: in each soil layer, the mass of water in all phases, including ice. Reported as 'missing' for grid cells occupied entirely by 'sea'

Used for mip era 'CMIP6' in CMOR MIP table(s): Table 6hrPlevPt; Table Eday; Table Emon, provided in frequency(s): 6hr; day; mon, and for Realm(s): atmos; land.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg m-2

Liquid Water Content of Snow Layer

Comment: The total mass of liquid water contained interstitially within the whole depth of the snow layer of the land portion of a grid cell divided by the area of the land portion of the cell.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Eday; Table LImon, provided in frequency(s): day; mon, and for Realm(s): land; landIce.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg m-2

"Vertical salt diffusivity" means the vertical component of the diffusivity of salt due to motion which is not resolved on the grid scale of the model. [CF-Standard Name]; unit: m2 s-1

Rate of Change of Alkalinity due to Biological Activity

Used in MIP table(s): CMOR Table Oyr: Annual Mean Ocean Fields, Including Biogechemical Fields

Comment in standard_output document: Net of biological terms in time rate of change of alkalinity

Code list created on 2012-10-16 out of standard_output document ( http://cmip-pcmdi.llnl.gov/cmip5/docs/standard_output.xlsx )

cf:'sea_water_alkalinity_expressed_as_mole_equivalent' is the total alkalinity equivalent concentration (including carbonate, nitrogen, silicate, and borate components). The specification of a physical process by the phrase due_to_process means that thequantity 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 withrespect to time. [CF-Standard Name]; unit: mol m-3 s-1

cf:In accordance with common usage in geophysical disciplines, 'flux' implies per unit area, called 'flux density' in physics. 'Sinking' is the gravitational settling of particulate matter suspended in a liquid. A sinking flux is positive downwards and is calculated relative to the movement of the surrounding fluid. [CF-Standard Name]; unit: mol m-2 s-1

mole_concentration_of_phytoplankton_expressed_as_phosphorus_in_sea_water [CF-Standard Name]; unit: mol m-3

Rate of Change of Dissolved Phosphorus Due to Biological Activity

Comment: Net of biological terms in time rate of change of dissolved phosphate

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Oyr, provided in frequency(s): yr, and for Realm(s): ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: mol m-3 s-1

"Area fraction" means the fraction of horizontal area. To specify which area is quantified by a variable of "area_fraction", provide a coordinate variable or scalar coordinate variable of "area_type". Alternatively, if one is defined, use a more specific standard name of "X_area_fraction" for the fraction of horizontal area occupied by X. [CF-Standard Name]; unit: not filled

Rate of Change of Nitrogen Nutrient due to Biological Activity

Used in MIP table(s): CMOR Table Oyr: Annual Mean Ocean Fields, Including Biogechemical Fields

Comment in standard_output document: Net of biological terms in time rate of change of nitrogen nutrients (e.g. NO3+NH4)

Code list created on 2012-10-16 out of standard_output document ( http://cmip-pcmdi.llnl.gov/cmip5/docs/standard_output.xlsx )

cf:'Mole concentration' means number of moles per unit volume, also called"molarity", and is used in the construction mole_concentration_of_X_in_Y, whereX is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. "Inorganic nitrogen" describes a family of chemical species which, in an ocean model, usually includes nitrite, nitrate and ammonium which act as nitrogennutrients. "Inorganic nitrogen" is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. [CF-Standard Name]; unit: mol m-3 s-1

cf:The phrase 'expressed_as' is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. In accordance with common usage in geophysical disciplines, 'flux' implies per unit area, called 'flux density' in physics. 'Sinking' is the gravitational settling of particulate matter suspended in a liquid. A sinking flux is positive downwards and is calculated relative to the movement of the surrounding fluid. [CF-Standard Name]; unit: mol m-2 s-1

Total Dissolved Inorganic Silicon Concentration

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

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Omon; Table Oyr, provided in frequency(s): mon; yr, and for Realm(s): ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: mol m-3

"tendency_of_X" means derivative of X with respect to time. The Lagrangian tendency of a quantity is its rate of change following the motion of the fluid, also called the "material derivative" or "convective derivative". The Lagrangian tendency of air pressure, often called "omega", plays the role of the upward component of air velocity when air pressure is being used as the vertical coordinate. If the vertical air velocity is upwards, it is negative when expressed as a tendency of air pressure; downwards is positive.[CF-Standard Name]; unit: Pa s-1

Fraction of Time Steps with Sea Ice

Comment: Fraction of time steps of the averaging period during which sea ice is present (siconc >0 ) in a grid cell

Used for mip era 'CMIP6' in CMOR MIP table(s): Table SIday; Table SImon, provided in frequency(s): day; mon, and for Realm(s): seaIce.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: 1

The unit of salinity is PSU, which is dimensionless. The units attribute should be given as 1e-3 or 0.001 i.e. parts per thousand if salinity is in PSU. Sea surface salinity is often abbreviated as "SSS". For the salinity of sea water at a particular depth or layer, a data variable of sea_water_salinity with a vertical coordinate axis should be used. [CF-Standard Name]; unit: 0.001

"Area fraction" means the fraction of horizontal area. To specify which area is quantified by a variable of "area_fraction", provide a coordinate variable or scalar coordinate variable of "area_type". Alternatively, if one is defined, use a more specific standard name of "X_area_fraction" for the fraction of horizontal area occupied by X. [CF-Standard Name]; unit: 0.01

The surface called "surface" means the lower boundary of the atmosphere. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. For unit "m day-1" the water equivalent of snow melt is given. [CF-Standard Name]; unit: kg m-2 s-1

surface_downward_heat_flux_in_sea_water [CF-Standard Name]; unit: W m-2

Total Water Content of Soil Layer

Comment: in each soil layer, the mass of water in all phases, including ice. Reported as 'missing' for grid cells occupied entirely by 'sea'

Used for mip era 'CMIP6' in CMOR MIP table(s): Table 6hrPlevPt; Table Eday; Table Emon, provided in frequency(s): 6hr; day; mon, and for Realm(s): atmos; land.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg m-2

"Vertical heat diffusivity" means the vertical component of the diffusivity of heat due to motion which is not resolved on the grid scale of the model. [CF-Standard Name]; unit: m2 s-1

Net Rate of Absorption of Shortwave Energy in Ocean Layer

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

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Emon; Table Oyr, provided in frequency(s): mon; yr, and for Realm(s): land; ocean; ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: W m-2

sea_water_transport_across_line [CF-Standard Name]; unit: kg s-1

Soil temperature is the bulk temperature of the soil, not the surface (skin) temperature. [CF-Standard Name]; unit: K

surface_downwelling_shortwave_flux_in_air_assuming_clear_sky [CF-Standard Name]; unit: W m-2

sea_water_ph_reported_on_total_scale [CF-Standard Name]; unit: 1

Air temperature is the bulk temperature of the air, not the surface (skin) temperature. [CF-Standard Name]; unit: K

Model Grid-Cell Area [CF-Standard Name]; unit: m2

"specific" means per unit mass. Specific humidity is the mass fraction of water vapor in (moist) air.[CF-Standard Name]; unit: 1

"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.) [CF-Standard Name]; unit: m s-1

relative_humidity [CF-Standard Name]; unit: 0.01

surface_snow_amount [CF-Standard Name]; unit: kg m-2

The surface called "surface" means the lower boundary of the atmosphere. "shortwave" means shortwave radiation. Upwelling radiation is radiation from below. It does not mean "net upward". 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. [CF-Standard Name]; unit: W m-2

Square of Sea Surface Salinity

Comment: Sea water salinity is the salt content of sea water, often on the Practical Salinity Scale of 1978. However, the unqualified term 'salinity' is generic and does not necessarily imply any particular method of calculation. The units of salinity are dimensionless and the units attribute should normally be given as 1e-3 or 0.001 i.e. parts per thousand.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Oday; Table Omon, provided in frequency(s): day; mon, and for Realm(s): ocean; ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: 1e-06

Air temperature is the bulk temperature of the air, not the surface (skin) temperature. [CF-Standard Name]; unit: K

Ocean Mixed Layer Thickness Defined by Sigma T [CF-Standard Name]; unit: m

mole_concentration_of_nitrate_in_sea_water [CF-Standard Name]; unit: mol m-3

Net Primary Mole Productivity of Carbon by Diazotrophs

Comment: Vertically integrated primary (organic carbon) production by the diazotrophs alone

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Omon, provided in frequency(s): mon, and for Realm(s): ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: mol m-2 s-1

cf:'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 asingle term in a sum of terms which together compose the general quantity named by omitting the phrase. 'tendency_of_X' means derivative of X with respect to time. 'Dissolved inorganic phosphorus/phosphate' means phosphate ions in solution. The chemical formula of the phosphate anion is PO4 with a charge of minus three. [CF-Standard Name]; unit: mol m-2 s-1

cf:'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 asingle term in a sum of terms which together compose the general quantity named by omitting the phrase. 'tendency_of_X' means derivative of X with respect to time. 'Dissolved inorganic iron' means iron ions, in oxidation states of both Fe2+ and Fe3+, in solution. [CF-Standard Name]; unit: mol m-2 s-1

Sea-Ice Mass Change from Thermodynamics

Comment: Total change in sea-ice mass from thermodynamic processes divided by grid-cell area

Used for mip era 'CMIP6' in CMOR MIP table(s): Table SImon, provided in frequency(s): mon, and for Realm(s): seaIce.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg m-2 s-1

sea_ice_x_velocity [CF-Standard Name]; unit: m s-1

"Mole concentration" means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". "Organic carbon" describes a family of chemical species and is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. [CF-Standard Name]; unit: mol m-3

Square of Ocean Mixed Layer Thickness De?ned by Sigma T [CF-Standard Name]; unit: m2

mole_concentration_of_particulate_organic_matter_expressed_as_phosphorus_in_sea_water [CF-Standard Name]; unit: mol m-3

Carbon Mass Flux out of Atmosphere Due to Net Primary Production on Land

Comment: 'Production of carbon' means the production of biomass expressed as the mass of carbon which it contains. Net primary production is the excess of gross primary production (rate of synthesis of biomass from inorganic precursors) by autotrophs ('producers'), for example, photosynthesis in plants or phytoplankton, over the rate at which the autotrophs themselves respire some of this biomass. 'Productivity' means production per unit area. The phrase 'expressed_as' is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Lmon, provided in frequency(s): mon, and for Realm(s): land.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg m-2 s-1

Iron Loss to Sediments

Comment: '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.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Omon, provided in frequency(s): mon, and for Realm(s): ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: mol m-2 s-1

Dissolved Oxygen Concentration at Saturation

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

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Omon; Table Oyr, provided in frequency(s): mon; yr, and for Realm(s): ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: mol m-3

Speed is the magnitude of velocity. 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.) The wind speed is the magnitude of the wind velocity.[CF-Standard Name]; unit: m s-1

relative_humidity [CF-Standard Name]; unit: 0.01

Sea Water Potential Temperature at Sea Floor

Comment: Potential temperature at the ocean bottom-most grid cell.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Omon, provided in frequency(s): mon, and for Realm(s): ocean; ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: degC

surface_upwelling_shortwave_flux_in_air_assuming_clear_sky [CF-Standard Name]; unit: W m-2

Downward Sea Ice Basal Salt Flux [CF-Standard Name]; unit: kg m-2 s-1

cf:In accordance with common usage in geophysical disciplines, 'flux' implies per unit area, called 'flux density' in physics. 'Sinking' is the gravitational settling of particulate matter suspended in a liquid. A sinking flux is positive downwards and is calculated relative to the movement of the surrounding fluid. [CF-Standard Name]; unit: mol m-2 s-1

Integral with Respect to Depth of Product of Sea Water Density and Potential Temperature

Comment: Integral over the full ocean depth of the product of sea water density and potential temperature.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Emon; Table Oyr, provided in frequency(s): mon; yr, and for Realm(s): land; ocean; ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: degC kg m-2

Sea-ice Area Percentage Tendency Due to Dynamics

Comment: Total change in sea-ice area fraction through dynamics-related processes (advection, divergence...)

Used for mip era 'CMIP6' in CMOR MIP table(s): Table SImon, provided in frequency(s): mon, and for Realm(s): seaIce.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: s-1

"X_area_fraction" means the fraction of horizontal area occupied by X. "X_area" means the horizontal area occupied by X within the grid cell. Cloud area fraction is also called "cloud amount" and "cloud cover". The cloud area fraction is for the whole atmosphere column, as seen from the surface or the top of the atmosphere. The cloud area fraction in a layer of the atmosphere has the standard name cloud_area_fraction_in_atmosphere_layer. [CF-Standard Name]; unit: 0.01

Total Grazing of Phytoplankton by Zooplankton

Comment: Total grazing of phytoplankton by zooplankton defined as tendency of moles of carbon per cubic metre.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Omon; Table Oyr, provided in frequency(s): mon; yr, and for Realm(s): ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: mol m-3 s-1

"Area fraction" means the fraction of horizontal area. To specify which area is quantified by a variable of "area_fraction", provide a coordinate variable or scalar coordinate variable of "area_type". Alternatively, if one is defined, use a more specific standard name of "X_area_fraction" for the fraction of horizontal area occupied by X. [CF-Standard Name]; unit: 0.01

Sea Water Age Since Surface Contact [CF-Standard Name]; unit: yr

Snow Mass Flux Through Straits

Comment: net (sum of transport in all directions) sea ice area transport through the following four passages, positive into the Arctic Ocean 1. Fram Strait = (11.5W,81.3N to (10.5E,79.6N) 2. Canadian Archipelago = (128.2W,70.6N) to (59.3W,82.1N) 3. Barents opening = (16.8E,76.5N) to (19.2E,70.2N) 4. Bering Strait = (171W,66.2N) to (166W,65N)

Used for mip era 'CMIP6' in CMOR MIP table(s): Table SImon, provided in frequency(s): mon, and for Realm(s): seaIce.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg s-1

Tendency of Mole Concentration of Organic Carbon in Sea Water due to Net Primary Production by Diazotrophs

Used in MIP table(s): CMOR Table Oyr: Annual Mean Ocean Fields, Including Biogechemical Fields

Comment in standard_output document: Primary (organic carbon) production by the diazotrophic phytoplankton component alone

Code list created on 2012-10-16 out of standard_output document ( http://cmip-pcmdi.llnl.gov/cmip5/docs/standard_output.xlsx )

cf:Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction mole_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Production of carbon" means the production of biomass expressed as the mass of carbon which it contains. Net primary production is the excess of gross primary production (the rate of synthesis of biomass from inorganic precursors) by autotrophs ("producers"), for example, photosynthesis in plants or phytoplankton, over the rate at which the autotrophs themselves respire some of this biomass. In the oceans, carbon production per unit volume is often found at a number of depths at a given horizontal location. That quantity can then be integrated to calculate production per unit area at the location. Standard names for production per unit area use the term "productivity". In ocean modelling, diazotrophs are phytoplankton of the phylum cyanobacteria distinct from other phytoplankton groups in their ability to fix nitrogen gas in addition to nitrate and ammonium. Phytoplankton are autotrophic prokaryotic or eukaryotic algae that live near the water surface where there is sufficient light to support photosynthesis. "tendency_of_X" means derivative of X with respect to time. [CF-Standard Name]; unit: mol m-3 s-1

Remineralization of Organic Carbon

Comment: Remineralization is the degradation of organic matter into inorganic forms of carbon, nitrogen, phosphorus and other micronutrients, which consumes oxygen and releases energy.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Oyr, provided in frequency(s): yr, and for Realm(s): ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: mol m-3 s-1

Rate of Change of Dissolved Inorganic Carbon due to Biological Activity

Used in MIP table(s): CMOR Table Oyr: Annual Mean Ocean Fields, Including Biogechemical Fields

Comment in standard_output document: Net of biological terms in time rate of change of dissolved inorganic carbon

Code list created on 2012-10-16 out of standard_output document ( http://cmip-pcmdi.llnl.gov/cmip5/docs/standard_output.xlsx )

cf:'Mole concentration' means number of moles per unit volume, also called"molarity", and is used in the construction mole_concentration_of_X_in_Y, whereX is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. "Dissolved inorganic carbon" describes a family of chemical species in solution, including carbon dioxide, carbonic acid and the carbonate and bicarbonate anions. "Dissolved inorganic carbon" is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. [CF-Standard Name]; unit: mol m-3 s-1

Tendency of Sea Water Potential Temperature Expressed as Heat Content Due to Parameterized Eddy Advection

Comment: Tendency of heat content for a grid cell from parameterized eddy advection (any form of eddy advection). Reported only for models that use potential temperature as prognostic field.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Emon; Table Oyr, provided in frequency(s): mon; yr, and for Realm(s): land; ocean; ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: W m-2

tendency_of_mole_concentration_of_calcite_expressed_as_carbon_in_sea_water_due_to_dissolution [CF-Standard Name]; unit: mol m-3 s-1

tendency_of_mole_concentration_of_particulate_organic_matter_expressed_as_carbon_in_sea_water_due_to_net_primary_production [CF-Standard Name]; unit: mol m-3 s-1

"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.) [CF-Standard Name]; unit: m s-1

Total Water Content of Soil Layer

Comment: in each soil layer, the mass of water in all phases, including ice. Reported as 'missing' for grid cells occupied entirely by 'sea'

Used for mip era 'CMIP6' in CMOR MIP table(s): Table 6hrPlevPt; Table Eday; Table Emon, provided in frequency(s): 6hr; day; mon, and for Realm(s): atmos; land.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg m-2

surface_partial_pressure_of_carbon_dioxide_in_sea_water [CF-Standard Name]; unit: Pa

"shortwave" means shortwave radiation. Upwelling radiation is radiation from below. It does not mean "net upward". 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. [CF-Standard Name]; unit: W m-2

Square of Sea Surface Temperature [CF-Standard Name]; unit: degC2

"specific" means per unit mass. Specific humidity is the mass fraction of water vapor in (moist) air.[CF-Standard Name]; unit: 1

Particulate Organic Carbon Content

Comment: Vertically integrated POC

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Omon, provided in frequency(s): mon, and for Realm(s): ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg m-2

"shortwave" means shortwave radiation. "toa" means top of atmosphere. 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. [CF-Standard Name]; unit: W m-2

"tendency_of_X" means derivative of X with respect to time. The Lagrangian tendency of a quantity is its rate of change following the motion of the fluid, also called the "material derivative" or "convective derivative". The Lagrangian tendency of air pressure, often called "omega", plays the role of the upward component of air velocity when air pressure is being used as the vertical coordinate. If the vertical air velocity is upwards, it is negative when expressed as a tendency of air pressure; downwards is positive.[CF-Standard Name]; unit: Pa s-1

cf:The phrase 'expressed_as' is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. In accordance with common usage in geophysical disciplines, 'flux' implies per unit area, called 'flux density' in physics. 'Sinking' is the gravitational settling of particulate matter suspended in a liquid. A sinking flux is positive downwards and is calculated relative to the movement of the surrounding fluid. Calcite is a mineral that is a polymorph of calcium carbonate. The chemical formula of calcite is CaCO3. Standard names also exist for aragonite, another polymorph of calcium carbonate. [CF-Standard Name]; unit: mol m-2 s-1

surface_downward_mass_flux_of_carbon_dioxide_expressed_as_carbon [CF-Standard Name]; unit: kg m-2 s-1

sea_water_salinity [CF-Standard Name]; unit: 0.001

cf:The phrase 'expressed_as' is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. In accordance with common usage in geophysical disciplines, 'flux' implies per unit area, called 'flux density' in physics. 'Sinking' is the gravitational settling of particulate matter suspended in a liquid. A sinking flux is positive downwards and is calculated relative to the movement of the surrounding fluid. [CF-Standard Name]; unit: mol m-2 s-1

downwelling_shortwave_flux_in_air [CF-Standard Name]; unit: W m-2

Mass Concentration of Diazotrophs expressed as Chlorophyll in Sea Water

Used in MIP table(s): CMOR Table Oyr: Annual Mean Ocean Fields, Including Biogechemical Fields

Comment in standard_output document: chlorophyll concentration from the diazotrophic phytoplankton component alone

Code list created on 2012-10-16 out of standard_output document ( http://cmip-pcmdi.llnl.gov/cmip5/docs/standard_output.xlsx )

cf:'Mass concentration' means mass per unit volume and is used in the construction mass_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The phrase 'expressed_as' is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. Chlorophylls are the green pigments found in most plants, algae and cyanobacteria; their presence is essential for photosynthesis to take place. There are several different forms of chlorophyll that occur naturally. All contain a chlorin ring (chemical formula C20H16N4) which gives the green pigment and a side chain whose structure varies. The naturally occurring forms of chlorophyll contain between 35 and 55 carbon atoms. In ocean modelling, diazotrophs are phytoplankton of the phylum cyanobacteria distinct from other phytoplankton groups in their ability to fix nitrogen gas in addition to nitrate and ammonium. Phytoplankton are autotrophic prokaryotic or eukaryotic organisms that live near the water surface where there is sufficient light to support photosynthesis. [CF-Standard Name]; unit: kg m-3

Ocean Model Cell Thickness [CF-Standard Name]; unit: m

The surface called "surface" means the lower boundary of the atmosphere.[CF-Standard Name]; unit: not filled

"longwave" means longwave radiation. "toa" means top of atmosphere. The TOA outgoing longwave flux is the upwelling thermal radiative flux, often called the "outgoing longwave radiation" or "OLR". In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. [CF-Standard Name]; unit: W m-2

"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.) [CF-Standard Name]; unit: m s-1

"specific" means per unit mass. Specific humidity is the mass fraction of water vapor in (moist) air.[CF-Standard Name]; unit: 1

Air pressure at sea level is the quantity often abbreviated as MSLP or PMSL. Air pressure is the force per unit area which would be exerted when the moving gas molecules of which the air is composed strike a theoretical surface of any orientation. "Mean sea level" means the time mean of sea surface elevation at a given location over an arbitrary period sufficient to eliminate the tidal signals. [CF-Standard Name]; unit: Pa

The surface called "surface" means the lower boundary of the atmosphere. "Northward" indicates a vector component which is positive when directed northward (negative southward). "Downward" indicates a vector component which is positive when directed downward (negative upward). "Downward northward" indicates the ZY component of a tensor. A downward northward stress is a downward flux of northward momentum, which accelerates the lower medium northward and the upper medium southward. The surface downward stress is the windstress on the surface. [CF-Standard Name]; unit: Pa

surface_snow_thickness [CF-Standard Name]; unit: m

Geopotential is the sum of the specific gravitational potential energy relative to the geoid and the specific centripetal potential energy. Geopotential height is the geopotential divided by the standard acceleration due to gravity. It is numerically similar to the altitude (or geometric height) and not to the quantity with standard name height, which is relative to the surface. [CF-Standard Name]; unit: m

Runoff is the liquid water which drains from land. If not specified, "runoff" refers to the sum of surface runoff and subsurface drainage. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. [CF-Standard Name]; unit: kg m-2 s-1

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. "longwave" means longwave radiation. "toa" means top of atmosphere. The TOA outgoing longwave flux is the upwelling thermal radiative flux, often called the "outgoing longwave radiation" or "OLR". In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. [CF-Standard Name]; unit: W m-2

Ambient Aerosol Optical Thickness at 440nm

Comment: AOD from the ambient aerosols (i.e., includes aerosol water). Does not include AOD from stratospheric aerosols if these are prescribed but includes other possible background aerosol types. Needs a comment attribute 'wavelength: 440nm'

Used for mip era 'CMIP6' in CMOR MIP table(s): Table AERmon, provided in frequency(s): mon, and for Realm(s): aerosol.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: 1

mole_concentration_of_phytoplankton_expressed_as_nitrogen_in_sea_water [CF-Standard Name]; unit: mol m-3

Dissolved Organic Carbon Content

Comment: Vertically integrated DOC (explicit pools only)

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Omon, provided in frequency(s): mon, and for Realm(s): ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg m-2

Content" indicates a quantity per unit area. The "atmosphere content" of a quantity refers to the vertical integral from the surface to the top of the atmosphere. For the content between specified levels in the atmosphere, standard names including content_of_atmosphere_layer are used. [CF-Standard Name]; unit: kg m-2

tendency_of_ocean_mole_content_of_dissolved_inorganic_silicon [CF-Standard Name]; unit: mol m-2 s-1

Sea Water Mass Per Unit Area [CF-Standard Name]; unit: kg m-2

atmosphere_mass_of_carbon_dioxide [CF-Standard Name]; unit: kg

Ocean Mass Y Transport [CF-Standard Name]; unit: kg s-1

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), and not the skin temperature, whose standard name is surface_temperature. 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. [CF-Standard Name]; unit: degC

Water Flux into Sea Water due to Sea Ice Thermodynamics [CF-Standard Name]; unit: kg m-2 s-1

Runoff is the liquid water which drains from land. If not specified, "runoff" refers to the sum of surface runoff and subsurface drainage. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. [CF-Standard Name]; unit: kg m-2 s-1

sea_water_potential_temperature [CF-Standard Name]; unit: degC

In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. [CF-Standard Name]; unit: kg m-2 s-1

cf:'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 asingle term in a sum of terms which together compose the general quantity named by omitting the phrase. 'tendency_of_X' means derivative of X with respect to time. 'Dissolved inorganic silicon/silicate' means silicate ions in solution. [CF-Standard Name]; unit: mol m-2 s-1

atmosphere_mass_content_of_water_vapor [CF-Standard Name]; unit: kg m-2

Ambient Fine Aerosol Optical Depth at 550nm

Comment: od550 due to particles with wet diameter less than 1 um (ambient here means wetted). When models do not include explicit size information, it can be assumed that all anthropogenic aerosols and natural secondary aerosols have diameter less than 1 um.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table AERmon, provided in frequency(s): mon, and for Realm(s): aerosol.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: 1

mole_concentration_of_particulate_organic_matter_expressed_as_nitrogen_in_sea_water [CF-Standard Name]; unit: mol m-3

Surface Mole Concentration of Particulate Organic Matter Expressed as Silicon in Sea Water

Comment: sum of particulate silica component concentrations

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Omon, provided in frequency(s): mon, and for Realm(s): ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: mol m-3

"Area fraction" means the fraction of horizontal area. To specify which area is quantified by a variable of "area_fraction", provide a coordinate variable or scalar coordinate variable of "area_type". Alternatively, if one is defined, use a more specific standard name of "X_area_fraction" for the fraction of horizontal area occupied by X. [CF-Standard Name]; unit: 0.01

Flux of Organic Carbon into Ocean Surface by Runoff

Comment: Organic Carbon supply to ocean through runoff (separate from gas exchange)

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Omon, provided in frequency(s): mon, and for Realm(s): ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: mol m-2 s-1

mole_concentration_of_dissolved_iron_in_sea_water [CF-Standard Name]; unit: mol m-3

mole_concentration_of_particulate_matter_expressed_as_silicon_in_sea_water [CF-Standard Name]; unit: mol m-3

mole_concentration_of_dissolved_iron_in_sea_water [CF-Standard Name]; unit: mol m-3

mole_concentration_of_phytoplankton_expressed_as_carbon_in_sea_water [CF-Standard Name]; unit: mol m-3

mole_concentration_of_nitrate_in_sea_water [CF-Standard Name]; unit: mol m-3

Tendency of Sea Water Potential Temperature Expressed as Heat Content Due to Parameterized Dianeutral Mixing

Comment: Tendency of heat content for a grid cell from parameterized dianeutral mixing. Reported only for models that use potential temperature as prognostic field.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Emon; Table Oyr, provided in frequency(s): mon; yr, and for Realm(s): land; ocean; ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: W m-2

Tendency of Sea Water Potential Temperature Expressed as Heat Content Due to Parameterized Mesoscale Diffusion

Comment: Tendency of heat content for a grid cell from parameterized mesoscale eddy diffusion. Reported only for models that use potential temperature as prognostic field.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Emon; Table Oyr, provided in frequency(s): mon; yr, and for Realm(s): land; ocean; ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: W m-2

"Area fraction" means the fraction of horizontal area. To specify which area is quantified by a variable of "area_fraction", provide a coordinate variable or scalar coordinate variable of "area_type". Alternatively, if one is defined, use a more specific standard name of "X_area_fraction" for the fraction of horizontal area occupied by X. [CF-Standard Name]; unit: 0.01

The surface called "surface" means the lower boundary of the atmosphere. "Upward" indicates a vector component which is positive when directed upward (negative downward). The surface latent heat flux is the exchange of heat between the surface and the air on account of evaporation (including sublimation). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics.[CF-Standard Name]; unit: W m-2

Northward Ocean Heat Transport Due to Parameterized Eddy Advection

Comment: Contributions to heat transport from parameterized eddy-induced advective transport due to any subgrid advective process. Diagnosed here as a function of latitude and basin. Use Celsius for temperature scale.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Omon, provided in frequency(s): mon, and for Realm(s): ocean; ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: W

sea_ice_area_fraction [CF-Standard Name]; unit: 0.01

"Area fraction" means the fraction of horizontal area. To specify which area is quantified by a variable of "area_fraction", provide a coordinate variable or scalar coordinate variable of "area_type". Alternatively, if one is defined, use a more specific standard name of "X_area_fraction" for the fraction of horizontal area occupied by X. [CF-Standard Name]; unit: 0.01

Nitrogen Production

Comment: Vertically integrated biogenic nitrogen production

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Omon, provided in frequency(s): mon, and for Realm(s): ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: mol m-2 s-1

Global Average Thermosteric Sea Level Change [CF-Standard Name]; unit: m

sea_water_potential_temperature [CF-Standard Name]; unit: degC

surface_snow_area_fraction [CF-Standard Name]; unit: 0.01

"Area fraction" means the fraction of horizontal area. To specify which area is quantified by a variable of "area_fraction", provide a coordinate variable or scalar coordinate variable of "area_type". Alternatively, if one is defined, use a more specific standard name of "X_area_fraction" for the fraction of horizontal area occupied by X. [CF-Standard Name]; unit: 0.01

Tendency of Sea water Salinity Expressed as Salt Content

Comment: Tendency of salt content for a grid cell from all processes.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Emon; Table Oyr, provided in frequency(s): mon; yr, and for Realm(s): land; ocean; ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg m-2 s-1

surface_downwelling_longwave_flux_in_air_assuming_clear_sky [CF-Standard Name]; unit: W m-2

sea_ice_thickness [CF-Standard Name]; unit: m

Speed is the magnitude of velocity. 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.) The wind speed is the magnitude of the wind velocity.[CF-Standard Name]; unit: m s-1

sea_water_salinity [CF-Standard Name]; unit: 0.001

Tendency of Sea Water Salinity Expressed as Salt Content Due to Residual Mean Advection

Comment: 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.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Emon; Table Oyr, provided in frequency(s): mon; yr, and for Realm(s): land; ocean; ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg m-2 s-1

mole_concentration_of_phytoplankton_expressed_as_iron_in_sea_water [CF-Standard Name]; unit: mol m-3

Geopotential is the sum of the specific gravitational potential energy relative to the geoid and the specific centripetal potential energy. Geopotential height is the geopotential divided by the standard acceleration due to gravity. It is numerically similar to the altitude (or geometric height) and not to the quantity with standard name height, which is relative to the surface. [CF-Standard Name]; unit: m

Air temperature is the bulk temperature of the air, not the surface (skin) temperature. [CF-Standard Name]; unit: K

surface_upwelling_shortwave_flux_in_air_assuming_clear_sky [CF-Standard Name]; unit: W m-2

"Area fraction" means the fraction of horizontal area. To specify which area is quantified by a variable of "area_fraction", provide a coordinate variable or scalar coordinate variable of "area_type". Alternatively, if one is defined, use a more specific standard name of "X_area_fraction" for the fraction of horizontal area occupied by X. [CF-Standard Name]; unit: 0.01

"moisture" means water in all phases contained in soil. "Content" indicates a quantity per unit area. The "soil content" of a quantity refers to the vertical integral from the surface down to the bottom of the soil model. For the content between specified levels in the soil, standard names including content_of_soil_layer are used. The field capacity of soil is the maximum content of water it can retain against gravitational drainage. [CF-Standard Name]; unit: kg m-2

"X_area_fraction" means the fraction of horizontal area occupied by X. "X_area" means the horizontal area occupied by X within the grid cell. "Land ice" means glaciers, ice-caps and ice-sheets resting on bedrock. [CF-Standard Name]; unit: 0.01

Region Selection Index [CF-Standard Name]; unit: 1

"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.) [CF-Standard Name]; unit: m s-1

"specific" means per unit mass. Specific humidity is the mass fraction of water vapor in (moist) air.[CF-Standard Name]; unit: 1

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. "longwave" means longwave radiation. "toa" means top of atmosphere. The TOA outgoing longwave flux is the upwelling thermal radiative flux, often called the "outgoing longwave radiation" or "OLR". In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. [CF-Standard Name]; unit: W m-2

relative_humidity [CF-Standard Name]; unit: 0.01

In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. [CF-Standard Name]; unit: kg m-2 s-1

surface_downwelling_longwave_flux_in_air_assuming_clear_sky [CF-Standard Name]; unit: W m-2

Air temperature is the bulk temperature of the air, not the surface (skin) temperature. [CF-Standard Name]; unit: K

"longwave" means longwave radiation. "toa" means top of atmosphere. The TOA outgoing longwave flux is the upwelling thermal radiative flux, often called the "outgoing longwave radiation" or "OLR". In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. [CF-Standard Name]; unit: W m-2

Monthly Maximum Ocean Mixed Layer Thickness De?ned by Mixing Scheme [CF-Standard Name]; unit: m

Square of Sea Surface Temperature [CF-Standard Name]; unit: degC2

Sea-Ice Speed

Comment: Speed of ice (i.e. mean absolute velocity) to account for back-and-forth movement of the ice

Used for mip era 'CMIP6' in CMOR MIP table(s): Table SIday; Table SImon, provided in frequency(s): day; mon, and for Realm(s): seaIce.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: m s-1

In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. [CF-Standard Name]; unit: kg m-2 s-1

The surface called "surface" means the lower boundary of the atmosphere.[CF-Standard Name]; unit: not filled

"shortwave" means shortwave radiation. "toa" means top of atmosphere. The TOA incoming shortwave flux is the radiative flux from the sun i.e. the "downwelling" TOA shortwave flux. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. [CF-Standard Name]; unit: W m-2

tendency_of_ocean_mole_content_of_calcite_expressed_as_carbon_due_to_biological_production [CF-Standard Name]; unit: mol m-2 s-1

Ocean Heat Y Transport [CF-Standard Name]; unit: W

Air pressure at sea level is the quantity often abbreviated as MSLP or PMSL. Air pressure is the force per unit area which would be exerted when the moving gas molecules of which the air is composed strike a theoretical surface of any orientation. "Mean sea level" means the time mean of sea surface elevation at a given location over an arbitrary period sufficient to eliminate the tidal signals. [CF-Standard Name]; unit: Pa

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), and not the skin temperature, whose standard name is surface_temperature. 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. [CF-Standard Name]; unit: degC

A velocity is a vector quantity. "Eastward" indicates a vector component which is positive when directed eastward (negative westward) [CF-Standard Name].; unit: m s-1

"Area fraction" means the fraction of horizontal area. To specify which area is quantified by a variable of "area_fraction", provide a coordinate variable or scalar coordinate variable of "area_type". Alternatively, if one is defined, use a more specific standard name of "X_area_fraction" for the fraction of horizontal area occupied by X. [CF-Standard Name]; unit: 0.01

The surface called "surface" means the lower boundary of the atmosphere. "Northward" indicates a vector component which is positive when directed northward (negative southward). "Downward" indicates a vector component which is positive when directed downward (negative upward). "Downward northward" indicates the ZY component of a tensor. A downward northward stress is a downward flux of northward momentum, which accelerates the lower medium northward and the upper medium southward. The surface downward stress is the windstress on the surface. [CF-Standard Name]; unit: Pa

Sea-ice Area Percentage Tendency Due to Thermodynamics

Comment: Total change in sea-ice area fraction through thermodynamic processes

Used for mip era 'CMIP6' in CMOR MIP table(s): Table SImon, provided in frequency(s): mon, and for Realm(s): seaIce.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: s-1

sea_surface_height_above_geoid [CF-Standard Name]; unit: m

The surface called "surface" means the lower boundary of the atmosphere. The surface temperature is the (skin) temperature at the interface, not the bulk temperature of the medium above or below. [CF-Standard Name]; unit: K

"longwave" means longwave radiation. "toa" means top of atmosphere. The TOA outgoing longwave flux is the upwelling thermal radiative flux, often called the "outgoing longwave radiation" or "OLR". In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. [CF-Standard Name]; unit: W m-2

Sea-Ice Extent North

Comment: Total area of all Northern-Hemisphere grid cells that are covered by at least 15 % areal fraction of sea ice

Used for mip era 'CMIP6' in CMOR MIP table(s): Table SImon, provided in frequency(s): mon, and for Realm(s): seaIce.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: 1e6 km2

The surface called "surface" means the lower boundary of the atmosphere. "Eastward" indicates a vector component which is positive when directed eastward (negative westward). "Downward" indicates a vector component which is positive when directed downward (negative upward). "Downward eastward" indicates the ZX component of a tensor. A downward eastward stress is a downward flux of eastward momentum, which accelerates the lower medium eastward and the upper medium westward. The surface downward stress is the windstress on the surface. [CF-Standard Name]; unit: Pa

Northward Ocean Salt Transport

Comment: function of latitude, basin

Used for mip era 'CMIP6' in CMOR MIP table(s): Table EmonZ, provided in frequency(s): mon, and for Realm(s): atmos; ocean.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg s-1

Square of Sea Surface Height Above Geoid [CF-Standard Name]; unit: m2

Northward Ocean Heat Transport Due to Parameterized Mesoscale Advection

Comment: Contributions to heat transport from parameterized mesoscale eddy-induced advective transport. Diagnosed here as a function of latitude and basin. Use Celsius for temperature scale.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Omon, provided in frequency(s): mon, and for Realm(s): ocean; ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: W

minimum_depth_of_calcite_undersaturation_in_sea_water [CF-Standard Name]; unit: m

sea_ice_x_transport [CF-Standard Name]; unit: kg s-1

relative_humidity [CF-Standard Name]; unit: 0.01

tendency_of_ocean_mole_content_of_silicon_due_to_biological_production [CF-Standard Name]; unit: mol m-2 s-1

Depth of 20 degree Celsius Isotherm

Comment: This quantity, sometimes called the 'isotherm depth', is the depth (if it exists) at which the sea water potential temperature equals some specified value. This value should be specified in a scalar coordinate variable. Depth is the vertical distance below the surface. Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Eday; Table Emon, provided in frequency(s): day; mon, and for Realm(s): land; ocean.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: m

Ambient Aerosol Absorption Optical Thickness at 550nm

Comment: Optical thickness of atmospheric aerosols at wavelength 550 nanometers.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table AERmon, provided in frequency(s): mon, and for Realm(s): aerosol.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: 1

The surface called "surface" means the lower boundary of the atmosphere. "longwave" means longwave radiation. Upwelling radiation is radiation from below. It does not mean "net upward". 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. [CF-Standard Name]; unit: W m-2

Water means water in all phases. The water_flux_into_sea_water_without_flux_correction is the freshwater entering as a result of precipitation, evaporation, river inflow and sea ice effects. The total water flux including any flux relaxation(s) or correction(s) is described by the standard name water_flux_into_sea_water. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. [CF-Standard Name]; unit: kg m-2 s-1

Rate of Change of Dissolved Inorganic Iron due to Biological Activity

Used in MIP table(s): CMOR Table Oyr: Annual Mean Ocean Fields, Including Biogechemical Fields

Comment in standard_output document: Net of biological terms in time rate of change of dissolved inorganic iron

Code list created on 2012-10-16 out of standard_output document ( http://cmip-pcmdi.llnl.gov/cmip5/docs/standard_output.xlsx )

cf:'Mole concentration' means number of moles per unit volume, also called"molarity", and is used in the construction mole_concentration_of_X_in_Y, whereX is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as 'nitrogen' or a phrase such as 'nox_expressed_as_nitrogen'. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "tendency_of_X" means derivative of X with respect to time. "Dissolved inorganic iron" means iron ions, in oxidation states of both Fe2+ and Fe3+, in solution. [CF-Standard Name]; unit: mol m-3 s-1

tendency_of_mole_concentration_of_iron_in_sea_water_due_to_biological_production [CF-Standard Name]; unit: mol m-3 s-1

Total Grazing of Phytoplankton by Zooplankton

Comment: Total grazing of phytoplankton by zooplankton defined as tendency of moles of carbon per cubic metre.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Omon; Table Oyr, provided in frequency(s): mon; yr, and for Realm(s): ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: mol m-3 s-1

mass_concentration_of_phytoplankton_expressed_as_chlorophyll_in_sea_water [CF-Standard Name]; unit: kg m-3

"shortwave" means shortwave radiation. "toa" means top of atmosphere. The TOA incoming shortwave flux is the radiative flux from the sun i.e. the "downwelling" TOA shortwave flux. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. [CF-Standard Name]; unit: W m-2

"shortwave" means shortwave radiation. "toa" means top of atmosphere. 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. [CF-Standard Name]; unit: W m-2

In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. [CF-Standard Name]; unit: kg m-2 s-1

Runoff is the liquid water which drains from land. If not specified, "runoff" refers to the sum of surface runoff and subsurface drainage. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. [CF-Standard Name]; unit: kg m-2 s-1

Air temperature is the bulk temperature of the air, not the surface (skin) temperature. [CF-Standard Name]; unit: K

"tendency_of_X" means derivative of X with respect to time. The Lagrangian tendency of a quantity is its rate of change following the motion of the fluid, also called the "material derivative" or "convective derivative". The Lagrangian tendency of air pressure, often called "omega", plays the role of the upward component of air velocity when air pressure is being used as the vertical coordinate. If the vertical air velocity is upwards, it is negative when expressed as a tendency of air pressure; downwards is positive.[CF-Standard Name]; unit: Pa s-1

relative_humidity [CF-Standard Name]; unit: 0.01

surface_downwelling_shortwave_flux_in_air_assuming_clear_sky [CF-Standard Name]; unit: W m-2

In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. [CF-Standard Name]; unit: kg m-2 s-1

Mole fraction is used in the construction mole_fraction_of_X_in_Y, where X is a material constituent of Y. [CF-Standard Name]; unit: mol mol-1

upward_sea_water_velocity [CF-Standard Name]; unit: m s-1

surface_molecular_oxygen_partial_pressure_difference_between_sea_water_and_air [CF-Standard Name]; unit: Pa

mole_concentration_of_dissolved_molecular_oxygen_in_sea_water_at_shallowest_local_minimum_in_vertical_profile [CF-Standard Name]; unit: mol m-3

Downward Inorganic Carbon Flux at Ocean Bottom

Comment: Inorganic Carbon loss to sediments

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Omon, provided in frequency(s): mon, and for Realm(s): ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: mol m-2 s-1

sea_ice_area_fraction [CF-Standard Name]; unit: 0.01

"Area fraction" means the fraction of horizontal area. To specify which area is quantified by a variable of "area_fraction", provide a coordinate variable or scalar coordinate variable of "area_type". Alternatively, if one is defined, use a more specific standard name of "X_area_fraction" for the fraction of horizontal area occupied by X. [CF-Standard Name]; unit: 0.01

Snow Mass Rate of Change Through Advection by Sea-Ice Dynamics

Comment: The rate of change of snow mass through advection with sea ice divided by sea-ice area

Used for mip era 'CMIP6' in CMOR MIP table(s): Table SImon, provided in frequency(s): mon, and for Realm(s): seaIce.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg m-2 s-1

sea_water_potential_temperature [CF-Standard Name]; unit: degC

mole_concentration_of_carbonate_expressed_as_carbon_in_sea_water [CF-Standard Name]; unit: mol m-3

"X_area" means the horizontal area occupied by X within the grid cell.[CF-Standard Name]; unit: 1

mole_concentration_of_phytoplankton_expressed_as_nitrogen_in_sea_water [CF-Standard Name]; unit: mol m-3

"Vertical salt diffusivity" means the vertical component of the diffusivity of salt due to motion which is not resolved on the grid scale of the model. [CF-Standard Name]; unit: m2 s-1

"Vertical heat diffusivity" means the vertical component of the diffusivity of heat due to motion which is not resolved on the grid scale of the model. [CF-Standard Name]; unit: m2 s-1

Depth Integral of Product of Sea Water Density and Prognostic Salinity

Comment: Full column sum of density*cell thickness*prognostic salinity. If the model is Boussinesq, then use Boussinesq reference density for the density factor.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Emon; Table Oyr, provided in frequency(s): mon; yr, and for Realm(s): land; ocean; ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: g m-2

surface_downwelling_longwave_flux_in_air [CF-Standard Name]; unit: W m-2

sea_water_potential_temperature [CF-Standard Name]; unit: degC

Ocean Barotropic Mass Streamfunction [CF-Standard Name]; unit: kg s-1

Sea Water Volume [CF-Standard Name]; unit: m3

Sea Floor Depth [CF-Standard Name]; unit: m

Model Grid-Cell Area [CF-Standard Name]; unit: m2

Upwelling Clear-Sky Shortwave Radiation [CF-Standard Name]; unit: W m-2

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), and not the skin temperature, whose standard name is surface_temperature. 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. [CF-Standard Name]; unit: degC

Total Water Content of Soil Layer

Comment: in each soil layer, the mass of water in all phases, including ice. Reported as 'missing' for grid cells occupied entirely by 'sea'

Used for mip era 'CMIP6' in CMOR MIP table(s): Table 6hrPlevPt; Table Eday; Table Emon, provided in frequency(s): 6hr; day; mon, and for Realm(s): atmos; land.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg m-2

In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. [CF-Standard Name]; unit: kg m-2 s-1

"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.) [CF-Standard Name]; unit: m s-1

"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.) [CF-Standard Name]; unit: m s-1

sea_ice_x_velocity [CF-Standard Name]; unit: m s-1

The surface called "surface" means the lower boundary of the atmosphere. "longwave" means longwave radiation. Upwelling radiation is radiation from below. It does not mean "net upward". 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. [CF-Standard Name]; unit: W m-2

The unit of salinity is PSU, which is dimensionless. The units attribute should be given as 1e-3 or 0.001 i.e. parts per thousand if salinity is in PSU. Sea surface salinity is often abbreviated as "SSS". For the salinity of sea water at a particular depth or layer, a data variable of sea_water_salinity with a vertical coordinate axis should be used. [CF-Standard Name]; unit: 0.001

surface_downwelling_longwave_flux_in_air [CF-Standard Name]; unit: W m-2

sea_ice_surface_temperature [CF-Standard Name]; unit: K

sea_water_alkalinity_expressed_as_mole_equivalent [CF-Standard Name]; unit: mol m-3

Mass fraction is used in the construction mass_fraction_of_X_in_Y, where X is a material constituent of Y. It means the ratio of the mass of Y to the mass of X (including Y). [CF-Standard Name]; unit: kg kg-1

Downwelling Clear-Sky Longwave Radiation [CF-Standard Name]; unit: W m-2

"Area fraction" means the fraction of horizontal area. To specify which area is quantified by a variable of "area_fraction", provide a coordinate variable or scalar coordinate variable of "area_type". Alternatively, if one is defined, use a more specific standard name of "X_area_fraction" for the fraction of horizontal area occupied by X. [CF-Standard Name]; unit: 0.01

Sea-Ice Area North

Comment: total area of sea ice in the Northern hemisphere

Used for mip era 'CMIP6' in CMOR MIP table(s): Table SImon, provided in frequency(s): mon, and for Realm(s): seaIce.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: 1e6 km2

Square of Sea Surface Salinity

Comment: Sea water salinity is the salt content of sea water, often on the Practical Salinity Scale of 1978. However, the unqualified term 'salinity' is generic and does not necessarily imply any particular method of calculation. The units of salinity are dimensionless and the units attribute should normally be given as 1e-3 or 0.001 i.e. parts per thousand.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Oday; Table Omon, provided in frequency(s): day; mon, and for Realm(s): ocean; ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: 1e-06

Sea-Ice Mass Change from Dynamics

Comment: Total change in sea-ice mass through dynamics-related processes (advection,...) divided by grid-cell area

Used for mip era 'CMIP6' in CMOR MIP table(s): Table SImon, provided in frequency(s): mon, and for Realm(s): seaIce.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg m-2 s-1

Ocean Meridional Overturning Mass Streamfunction [CF-Standard Name]; unit: kg s-1

surface_snow_amount [CF-Standard Name]; unit: kg m-2

sea_ice_thickness [CF-Standard Name]; unit: m

Flux of Inorganic Carbon into Ocean Surface by Runoff

Comment: Inorganic Carbon supply to ocean through runoff (separate from gas exchange)

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Omon, provided in frequency(s): mon, and for Realm(s): ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: mol m-2 s-1

sea_ice_transport_across_line [CF-Standard Name]; unit: kg s-1

"Layer" means any layer with upper and lower boundaries that have constant values in some vertical coordinate. There must be a vertical coordinate variable indicating the extent of the layer(s). If the layers are model layers, the vertical coordinate can be model_level_number, but it is recommended to specify a physical coordinate (in a scalar or auxiliary coordinate variable) as well. "X_area_fraction" means the fraction ofhorizontal area occupied by X. "X_area" means the horizontal area occupied by X within the grid cell. Cloud area fraction is also called "cloud amount" and "cloud cover". [CF-Standard Name]; unit: 0.01

Net Rate of Absorption of Shortwave Energy in Ocean Layer

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

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Emon; Table Oyr, provided in frequency(s): mon; yr, and for Realm(s): land; ocean; ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: W m-2

Net Conductive Heat Fluxes in Ice at the Bottom

Comment: the net heat conduction flux at the ice base

Used for mip era 'CMIP6' in CMOR MIP table(s): Table SImon, provided in frequency(s): mon, and for Realm(s): seaIce.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: W m-2

"Area fraction" means the fraction of horizontal area. To specify which area is quantified by a variable of "area_fraction", provide a coordinate variable or scalar coordinate variable of "area_type". Alternatively, if one is defined, use a more specific standard name of "X_area_fraction" for the fraction of horizontal area occupied by X. [CF-Standard Name]; unit: 0.01

sea_water_potential_temperature [CF-Standard Name]; unit: degC

Northward Ocean Heat Transport [CF-Standard Name]; unit: W

mass_concentration_of_phytoplankton_expressed_as_chlorophyll_in_sea_water [CF-Standard Name]; unit: kg m-3

"Area fraction" means the fraction of horizontal area. To specify which area is quantified by a variable of "area_fraction", provide a coordinate variable or scalar coordinate variable of "area_type". Alternatively, if one is defined, use a more specific standard name of "X_area_fraction" for the fraction of horizontal area occupied by X. [CF-Standard Name]; unit: 0.01

Integral with Respect to Depth of Product of Sea Water Density and Potential Temperature

Comment: Integral over the full ocean depth of the product of sea water density and potential temperature.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Emon; Table Oyr, provided in frequency(s): mon; yr, and for Realm(s): land; ocean; ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: degC kg m-2

Tendency of Sea water Salinity Expressed as Salt Content Due to Parameterized Mesoscale Diffusion

Comment: Tendency of salt content for a grid cell from parameterized mesoscale eddy diffusion.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Emon; Table Oyr, provided in frequency(s): mon; yr, and for Realm(s): land; ocean; ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg m-2 s-1

Tendency of Sea Water Potential Temperature Expressed as Heat Content Due to Residual Mean Advection

Comment: 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.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Emon; Table Oyr, provided in frequency(s): mon; yr, and for Realm(s): land; ocean; ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: W m-2

surface_snow_area_fraction [CF-Standard Name]; unit: 0.01

"tendency_of_X" means derivative of X with respect to time. The Lagrangian tendency of a quantity is its rate of change following the motion of the fluid, also called the "material derivative" or "convective derivative". The Lagrangian tendency of air pressure, often called "omega", plays the role of the upward component of air velocity when air pressure is being used as the vertical coordinate. If the vertical air velocity is upwards, it is negative when expressed as a tendency of air pressure; downwards is positive.[CF-Standard Name]; unit: Pa s-1

"X_area_fraction" means the fraction of horizontal area occupied by X. "X_area" means the horizontal area occupied by X within the grid cell. Cloud area fraction is also called "cloud amount" and "cloud cover". The cloud area fraction is for the whole atmosphere column, as seen from the surface or the top of the atmosphere. The cloud area fraction in a layer of the atmosphere has the standard name cloud_area_fraction_in_atmosphere_layer. [CF-Standard Name]; unit: 0.01

Sea Water Mass [CF-Standard Name]; unit: kg

tendency_of_ocean_mole_content_of_dissolved_inorganic_phosphorus [CF-Standard Name]; unit: mol m-2 s-1

Northward Ocean Heat Transport Due to Parameterized Mesoscale Diffusion

Comment: Contributions to heat transport from parameterized mesoscale eddy-induced diffusive transport (i.e., neutral diffusion). Diagnosed here as a function of latitude and basin.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Omon, provided in frequency(s): mon, and for Realm(s): ocean; ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: W

surface_downwelling_shortwave_flux_in_air [CF-Standard Name]; unit: W m-2

mole_concentration_of_phytoplankton_expressed_as_carbon_in_sea_water [CF-Standard Name]; unit: mol m-3

tendency_of_ocean_mole_content_of_iron_due_to_biological_production [CF-Standard Name]; unit: mol m-2 s-1

Carbon Mass Flux out of Atmosphere Due to Gross Primary Production on Land

Comment: The rate of synthesis of biomass from inorganic precursors by autotrophs ('producers') expressed as the mass of carbon which it contains. For example, photosynthesis in plants or phytoplankton. The producers also respire some of this biomass and the difference is referred to as the net primary production.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table E3hr; Table Lmon, provided in frequency(s): 3hr; mon, and for Realm(s): land.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg m-2 s-1

mole_concentration_of_particulate_organic_matter_expressed_as_iron_in_sea_water [CF-Standard Name]; unit: mol m-3

net_downward_shortwave_flux_at_sea_water_surface [CF-Standard Name]; unit: W m-2

Ocean Mixed Layer Thickness Defined by Sigma T [CF-Standard Name]; unit: m

mole_concentration_of_phytoplankton_expressed_as_iron_in_sea_water [CF-Standard Name]; unit: mol m-3

Tendency of Sea water Salinity Expressed as Salt Content Due to Parameterized Eddy Advection

Comment: Tendency of salt content for a grid cell from parameterized eddy advection (any form of eddy advection).

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Emon; Table Oyr, provided in frequency(s): mon; yr, and for Realm(s): land; ocean; ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg m-2 s-1

The surface called "surface" means the lower boundary of the atmosphere. "longwave" means longwave radiation. Upwelling radiation is radiation from below. It does not mean "net upward". 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. [CF-Standard Name]; unit: W m-2

The surface called "surface" means the lower boundary of the atmosphere.[CF-Standard Name]; unit: not filled

"X_area" means the horizontal area occupied by X within the grid cell.[CF-Standard Name]; unit: 1

Dissolved Oxygen Concentration at Saturation

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

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Omon; Table Oyr, provided in frequency(s): mon; yr, and for Realm(s): ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: mol m-3

Sea Area Fraction [CF-Standard Name]; unit: 0.01

"Area fraction" means the fraction of horizontal area. To specify which area is quantified by a variable of "area_fraction", provide a coordinate variable or scalar coordinate variable of "area_type". Alternatively, if one is defined, use a more specific standard name of "X_area_fraction" for the fraction of horizontal area occupied by X. [CF-Standard Name]; unit: 0.01

"tendency_of_X" means derivative of X with respect to time. The Lagrangian tendency of a quantity is its rate of change following the motion of the fluid, also called the "material derivative" or "convective derivative". The Lagrangian tendency of air pressure, often called "omega", plays the role of the upward component of air velocity when air pressure is being used as the vertical coordinate. If the vertical air velocity is upwards, it is negative when expressed as a tendency of air pressure; downwards is positive.[CF-Standard Name]; unit: Pa s-1

In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics. [CF-Standard Name]; unit: kg m-2 s-1

The surface called "surface" means the lower boundary of the atmosphere. "shortwave" means shortwave radiation. Upwelling radiation is radiation from below. It does not mean "net upward". 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. [CF-Standard Name]; unit: W m-2

surface_downwelling_shortwave_flux_in_air [CF-Standard Name]; unit: W m-2

Total Water Content of Soil Layer

Comment: in each soil layer, the mass of water in all phases, including ice. Reported as 'missing' for grid cells occupied entirely by 'sea'

Used for mip era 'CMIP6' in CMOR MIP table(s): Table 6hrPlevPt; Table Eday; Table Emon, provided in frequency(s): 6hr; day; mon, and for Realm(s): atmos; land.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg m-2

Soil temperature is the bulk temperature of the soil, not the surface (skin) temperature. [CF-Standard Name]; unit: K

Air temperature is the bulk temperature of the air, not the surface (skin) temperature. [CF-Standard Name]; unit: K

"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.) [CF-Standard Name]; unit: m s-1

sea_ice_y_velocity [CF-Standard Name]; unit: m s-1

The surface called "surface" means the lower boundary of the atmosphere. "Eastward" indicates a vector component which is positive when directed eastward (negative westward). "Downward" indicates a vector component which is positive when directed downward (negative upward). "Downward eastward" indicates the ZX component of a tensor. A downward eastward stress is a downward flux of eastward momentum, which accelerates the lower medium eastward and the upper medium westward. The surface downward stress is the windstress on the surface. [CF-Standard Name]; unit: Pa

Depth of 20 degree Celsius Isotherm

Comment: This quantity, sometimes called the 'isotherm depth', is the depth (if it exists) at which the sea water potential temperature equals some specified value. This value should be specified in a scalar coordinate variable. Depth is the vertical distance below the surface. Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Eday; Table Emon, provided in frequency(s): day; mon, and for Realm(s): land; ocean.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: m

The surface called "surface" means the lower boundary of the atmosphere. "Upward" indicates a vector component which is positive when directed upward (negative downward). The surface latent heat flux is the exchange of heat between the surface and the air on account of evaporation (including sublimation). In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics.[CF-Standard Name]; unit: W m-2

Sea-Ice Area North

Comment: total area of sea ice in the Northern hemisphere

Used for mip era 'CMIP6' in CMOR MIP table(s): Table SImon, provided in frequency(s): mon, and for Realm(s): seaIce.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: 1e6 km2

Ocean Meridional Overturning Mass Streamfunction Due to Parameterized Mesoscale Advection

Comment: CMIP5 called this 'due to Bolus Advection'. Name change respects the more general physics of the mesoscale parameterizations.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Omon, provided in frequency(s): mon, and for Realm(s): ocean; ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg s-1

Ocean Heat X Transport [CF-Standard Name]; unit: W

A velocity is a vector quantity. "Northward" indicates a vector component which is positive when directed northward (negative southward). [CF-Standard Name]; unit: m s-1

Water Flux into Sea Water due to Sea Ice Thermodynamics [CF-Standard Name]; unit: kg m-2 s-1

"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.) [CF-Standard Name]; unit: m s-1

Fraction of Time Steps with Sea Ice

Comment: Fraction of time steps of the averaging period during which sea ice is present (siconc >0 ) in a grid cell

Used for mip era 'CMIP6' in CMOR MIP table(s): Table SIday; Table SImon, provided in frequency(s): day; mon, and for Realm(s): seaIce.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: 1

The surface called "surface" means the lower boundary of the atmosphere. "shortwave" means shortwave radiation. Upwelling radiation is radiation from below. It does not mean "net upward". 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. [CF-Standard Name]; unit: W m-2

"Area fraction" means the fraction of horizontal area. To specify which area is quantified by a variable of "area_fraction", provide a coordinate variable or scalar coordinate variable of "area_type". Alternatively, if one is defined, use a more specific standard name of "X_area_fraction" for the fraction of horizontal area occupied by X. [CF-Standard Name]; unit: 0.01

surface_snow_area_fraction [CF-Standard Name]; unit: 0.01

Ocean Mixed Layer Thickness Defined by Sigma T [CF-Standard Name]; unit: m

mole_concentration_of_dissolved_inorganic_carbon_in_sea_water [CF-Standard Name]; unit: mol m-3

Downward Organic Carbon Flux at Ocean Bottom

Comment: Organic Carbon loss to sediments

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Omon, provided in frequency(s): mon, and for Realm(s): ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: mol m-2 s-1

Ocean Mass X Transport [CF-Standard Name]; unit: kg s-1

The surface called "surface" means the lower boundary of the atmosphere. "Upward" indicates a vector component which is positive when directed upward (negative downward). The surface sensible heat flux, also called "turbulent" heat flux, is the exchange of heat between the surface and the air by motion of air. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics.[CF-Standard Name]; unit: W m-2

"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.) [CF-Standard Name]; unit: m s-1

upward_x_stress_at_sea_ice_base [CF-Standard Name]; unit: N m-2

cf:'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. 'Inorganic nitrogen' describes a family of chemical species which, in an ocean model, usually includes nitrite, nitrate and ammonium which act as nitrogen nutrients. 'Inorganic nitrogen' is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. [CF-Standard Name]; unit: mol m-2 s-1

Tendency of Mole Concentration of Organic Carbon in Sea Water due to Net Primary Production by Diazotrophs

Used in MIP table(s): CMOR Table Oyr: Annual Mean Ocean Fields, Including Biogechemical Fields

Comment in standard_output document: Primary (organic carbon) production by the diazotrophic phytoplankton component alone

Code list created on 2012-10-16 out of standard_output document ( http://cmip-pcmdi.llnl.gov/cmip5/docs/standard_output.xlsx )

cf:Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction mole_concentration_of_X_in_Y, where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Production of carbon" means the production of biomass expressed as the mass of carbon which it contains. Net primary production is the excess of gross primary production (the rate of synthesis of biomass from inorganic precursors) by autotrophs ("producers"), for example, photosynthesis in plants or phytoplankton, over the rate at which the autotrophs themselves respire some of this biomass. In the oceans, carbon production per unit volume is often found at a number of depths at a given horizontal location. That quantity can then be integrated to calculate production per unit area at the location. Standard names for production per unit area use the term "productivity". In ocean modelling, diazotrophs are phytoplankton of the phylum cyanobacteria distinct from other phytoplankton groups in their ability to fix nitrogen gas in addition to nitrate and ammonium. Phytoplankton are autotrophic prokaryotic or eukaryotic algae that live near the water surface where there is sufficient light to support photosynthesis. "tendency_of_X" means derivative of X with respect to time. [CF-Standard Name]; unit: mol m-3 s-1

Mole Concentration of Carbonate Ion in Equilibrium with Pure Calcite in Sea Water

Comment: Mole concentration (number of moles per unit volume: molarity) of the carbonate anion (CO3) for sea water in equilibrium with pure calcite. Aragonite (CaCO3) is a mineral that is a polymorph of calcium carbonate.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Omon; Table Oyr, provided in frequency(s): mon; yr, and for Realm(s): ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: mol m-3

"Mole concentration" means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". "Organic carbon" describes a family of chemical species and is the term used in standard names for all species belonging to the family that are represented within a given model. The list of individual species that are included in a quantity having a group chemical standard name can vary between models. Where possible, the data variable should be accompanied by a complete description of the species represented, for example, by using a comment attribute. [CF-Standard Name]; unit: mol m-3

Other Phytoplankton Carbon Production

Used in MIP table(s): CMOR Table Oyr: Annual Mean Ocean Fields, Including Biogechemical Fields

Comment in standard_output document: Primary (organic carbon) production by other phytoplankton components alone

Code list created on 2012-10-16 out of standard_output document ( http://cmip-pcmdi.llnl.gov/cmip5/docs/standard_output.xlsx )

cf:Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Production of carbon" means the production of biomass expressed as the mass of carbon which it contains. Net primary production is the excess of gross primary production (the rate of synthesis of biomass from inorganic precursors) by autotrophs ("producers"), for example, photosynthesis in plants or phytoplankton, over the rate at which the autotrophs themselves respire some of this biomass. In the oceans, carbon production per unit volume is often found at a number of depths at a given horizontal location. That quantity can then be integrated to calculate production per unit area at the location. Standard names for production per unit area use the term "productivity". Phytoplankton are autotrophic prokaryotic or eukaryotic algae that live near the water surface where there is sufficient light to support photosynthesis. "Miscellaneous phytoplankton" are all those phytoplankton that are not diatoms, diazotrophs, calcareous phytoplankton, picophytoplankton or other seperately named components of the phytoplankton population. "tendency_of_X" means derivative of X with respect to time. [CF-Standard Name]; unit: mol m-3 s-1

tendency_of_ocean_mole_content_of_dissolved_inorganic_nitrogen [CF-Standard Name]; unit: mol m-2 s-1

Square of Brunt Vaisala Frequency in Sea Water

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

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Omon, provided in frequency(s): mon, and for Realm(s): ocean; ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: s-2

mole_concentration_of_particulate_matter_expressed_as_silicon_in_sea_water [CF-Standard Name]; unit: mol m-3

Snow Heat Content per Unit Area

Comment: Heat-content of all snow in grid cell divided by total grid-cell area. Snow-water equivalent at 0 Celsius is assumed to have a heat content of 0 J. Does not include heat content of sea ice.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table SImon, provided in frequency(s): mon, and for Realm(s): seaIce.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: J m-2

sea_ice_y_transport [CF-Standard Name]; unit: kg s-1

Other Phytoplankton Carbon Production

Used in MIP table(s): CMOR Table Oyr: Annual Mean Ocean Fields, Including Biogechemical Fields

Comment in standard_output document: Primary (organic carbon) production by other phytoplankton components alone

Code list created on 2012-10-16 out of standard_output document ( http://cmip-pcmdi.llnl.gov/cmip5/docs/standard_output.xlsx )

cf:Mole concentration means number of moles per unit volume, also called "molarity", and is used in the construction "mole_concentration_of_X_in_Y", where X is a material constituent of Y. A chemical or biological species denoted by X may be described by a single term such as "nitrogen" or a phrase such as "nox_expressed_as_nitrogen". The phrase "expressed_as" is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. The specification of a physical process by the phrase due_to_process means that the quantity named is a single term in a sum of terms which together compose the general quantity named by omitting the phrase. "Production of carbon" means the production of biomass expressed as the mass of carbon which it contains. Net primary production is the excess of gross primary production (the rate of synthesis of biomass from inorganic precursors) by autotrophs ("producers"), for example, photosynthesis in plants or phytoplankton, over the rate at which the autotrophs themselves respire some of this biomass. In the oceans, carbon production per unit volume is often found at a number of depths at a given horizontal location. That quantity can then be integrated to calculate production per unit area at the location. Standard names for production per unit area use the term "productivity". Phytoplankton are autotrophic prokaryotic or eukaryotic algae that live near the water surface where there is sufficient light to support photosynthesis. "Miscellaneous phytoplankton" are all those phytoplankton that are not diatoms, diazotrophs, calcareous phytoplankton, picophytoplankton or other seperately named components of the phytoplankton population. "tendency_of_X" means derivative of X with respect to time. [CF-Standard Name]; unit: mol m-3 s-1

cf:The phrase 'expressed_as' is used in the construction A_expressed_as_B, where B is a chemical constituent of A. It means that the quantity indicated by the standard name is calculated solely with respect to the B contained in A, neglecting all other chemical constituents of A. In accordance with common usage in geophysical disciplines, 'flux' implies per unit area, called 'flux density' in physics. 'Sinking' is the gravitational settling of particulate matter suspended in a liquid. A sinking flux is positive downwards and is calculated relative to the movement of the surrounding fluid. Calcite is a mineral that is a polymorph of calcium carbonate. The chemical formula of calcite is CaCO3. Standard names also exist for aragonite, another polymorph of calcium carbonate. [CF-Standard Name]; unit: mol m-2 s-1

mole_concentration_of_particulate_organic_matter_expressed_as_nitrogen_in_sea_water [CF-Standard Name]; unit: mol m-3

Geopotential is the sum of the specific gravitational potential energy relative to the geoid and the specific centripetal potential energy. Geopotential height is the geopotential divided by the standard acceleration due to gravity. It is numerically similar to the altitude (or geometric height) and not to the quantity with standard name height, which is relative to the surface. [CF-Standard Name]; unit: m

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), and not the skin temperature, whose standard name is surface_temperature. 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. [CF-Standard Name]; unit: degC

mass_concentration_of_phytoplankton_expressed_as_chlorophyll_in_sea_water [CF-Standard Name]; unit: kg m-3

Total Dissolved Inorganic Silicon Concentration

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

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Omon; Table Oyr, provided in frequency(s): mon; yr, and for Realm(s): ocnBgchem.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: mol m-3

Carbon Mass Flux into Atmosphere Due to Autotrophic (Plant) Respiration on Land

Comment: Carbon mass flux per unit area into atmosphere due to autotrophic respiration on land (respiration by producers) [see rh for heterotrophic production]

Used for mip era 'CMIP6' in CMOR MIP table(s): Table E3hr; Table Lmon, provided in frequency(s): 3hr; mon, and for Realm(s): land.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg m-2 s-1

Sea-Ice Freeboard

Comment: Mean height of sea-ice surface (=snow-ice interface when snow covered) above sea level

Used for mip era 'CMIP6' in CMOR MIP table(s): Table SImon, provided in frequency(s): mon, and for Realm(s): seaIce.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: m

tendency_of_ocean_mole_content_of_dissolved_inorganic_iron [CF-Standard Name]; unit: mol m-2 s-1

mole_concentration_of_particulate_organic_matter_expressed_as_phosphorus_in_sea_water [CF-Standard Name]; unit: mol m-3

Total Soil Moisture Content

Comment: the mass per unit area (summed over all soil layers) of water in all phases.

Used for mip era 'CMIP6' in CMOR MIP table(s): Table Lmon; Table day, provided in frequency(s): day; mon, and for Realm(s): atmos; land.

Codelist created on 2019-02-01 from https://github.com/PCMDI/cmip6-cmor-tables (CMOR Version=3.4; table_date(s):14 December 2018) [CF-Standard Name]; unit: kg m-2

mole_concentration_of_particulate_organic_matter_expressed_as_phosphorus_in_sea_water [CF-Standard Name]; unit: mol m-3

The surface called "surface" means the lower boundary of the atmosphere. "Upward" indicates a vector component which is positive when directed upward (negative downward). The surface sensible heat flux, also called "turbulent" heat flux, is the exchange of heat between the surface and the air by motion of air. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics.[CF-Standard Name]; unit: W m-2

tendency_of_mole_concentration_of_particulate_organic_matter_expressed_as_carbon_in_sea_water_due_to_net_primary_production [CF-Standard Name]; unit: mol m-3 s-1

"tendency_of_X" means derivative of X with respect to time. The Lagrangian tendency of a quantity is its rate of change following the motion of the fluid, also called the "material derivative" or "convective derivative". The Lagrangian tendency of air pressure, often called "omega", plays the role of the upward component of air velocity when air pressure is being used as the vertical coordinate. If the vertical air velocity is upwards, it is negative when expressed as a tendency of air pressure; downwards is positive.[CF-Standard Name]; unit: Pa s-1

"specific" means per unit mass. Specific humidity is the mass fraction of water vapor in (moist) air.[CF-Standard Name]; unit: 1

eng; USA

SOLCHECK_MPI-ESM-HR_C6_lowpass

ISO 19115

ISO 19115-2:2009