sea_water_potential_temperature_at_sea_floor

accepted
Created: Feb. 5, 2024
Proposer: Jonathan Gregory & Lars Barring
Proposed Date: 2024-01-10
#270
Change Date: Feb. 5, 2024, 3:44 p.m.
Term: sea_water_potential_temperature_at_sea_floor
Unit: K
Unit ref: UPKA
AMIP:
GRIB:
Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure. The potential temperature at the sea floor is that adjacent to the ocean bottom, which would be the deepest grid cell in an ocean model and within the benthic boundary layer for measurements.
Change Date: Feb. 5, 2024, 3:47 p.m.
Term: sea_water_potential_temperature_at_sea_floor
Unit: K
Unit ref: UPKA
AMIP:
GRIB:
Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure. The potential temperature at the sea floor is that adjacent to the ocean bottom, which would be the deepest grid cell in an ocean model and within the benthic boundary layer for measurements. It is strongly recommended to include a units_metadata attribute.
Change Date: Feb. 9, 2024, 3:11 p.m.
Term: sea_water_potential_temperature_at_sea_floor
Unit: K
Unit ref: UPKA
AMIP:
GRIB:
Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure. The potential temperature at the sea floor is that adjacent to the ocean bottom, which would be the deepest grid cell in an ocean model and within the benthic boundary layer for measurements. In order to convert the units correctly, it is essential to know whether a temperature is on-scale or a difference. Therefore this standard strongly recommends that any variable whose units involve a temperature unit should also have a units_metadata attribute to make the distinction. It is strongly recommended to include the attribute units_metadata.
Change Date: Feb. 23, 2024, 3:56 p.m.
Term: sea_water_potential_temperature_at_sea_floor
Unit: K
Unit ref: UPKA
AMIP:
GRIB:
Potential temperature is the temperature a parcel of air or sea water would have if moved adiabatically to sea level pressure. The potential temperature at the sea floor is that adjacent to the ocean bottom, which would be the deepest grid cell in an ocean model and within the benthic boundary layer for measurements. It is strongly recommended that a variable with this standard name should have a units_metadata attribute, with one of the values "on-scale" or "difference", whichever is appropriate for the data, because it is essential to know whether the temperature is on-scale (meaning relative to the origin of the scale indicated by the units) or refers to temperature differences (implying that the origin of the temperature scale is irrevelant), in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).