air_temperature_threshold

complete
Created: Feb. 5, 2024
Proposer: Jonathan Gregory & Lars Barring
Proposed Date: 2024-01-10
#270
Change Date: Feb. 5, 2024, 2:32 p.m.
Term: air_temperature_threshold
Unit: K
Unit ref: UPKA
AMIP:
GRIB:
Air temperature is the bulk temperature of the air, not the surface (skin) temperature. Air temperature excess and deficit are calculated relative to the air temperature threshold.
Change Date: Feb. 5, 2024, 2:52 p.m.
Term: air_temperature_threshold
Unit: K
Unit ref: UPKA
AMIP:
GRIB:
Air temperature is the bulk temperature of the air, not the surface (skin) temperature. Air temperature excess and deficit are calculated relative to the air temperature threshold. It is strongly recommended to include a units_metadata attribute.
Change Date: Feb. 9, 2024, 3:34 p.m.
Term: air_temperature_threshold
Unit: K
Unit ref: UPKA
AMIP:
GRIB:
Air temperature is the bulk temperature of the air, not the surface (skin) temperature. Air temperature excess and deficit are calculated relative to the air temperature threshold. 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. units_metadata="temperature: on-scale" means that the temperature quantity is relative to the origin of the scale indicated by the units." It is strongly recommended to include the attribute units_metadata="temperature: on-scale".
Change Date: Feb. 23, 2024, 4:17 p.m.
Term: air_temperature_threshold
Unit: K
Unit ref: UPKA
AMIP:
GRIB:
Air temperature is the bulk temperature of the air, not the surface (skin) temperature. Air temperature excess and deficit are calculated relative to the air temperature threshold. It is strongly recommended that a variable with this standard name should have the attribute units_metadata="temperature: on-scale", meaning that the temperature is relative to the origin of the scale indicated by the units, because it is essential to know whether a temperature is on-scale or a difference in order to convert the units correctly (cf. https://cfconventions.org/cf-conventions/cf-conventions.html#temperature-units).