covariance_over_longitude_of_northward_wind_and_air_temperature

complete
Created: May 29, 2019
Proposer: Martin Juckes / Jonathan Gregory / Michaela Hegglin
Proposed Date: 2019-05-08
Change Date: May 29, 2019, 3:17 p.m.
Term: covariance_over_longitude_of_northward_wind_and_air_temperature
Unit: K m s-1
Unit ref: KMTS
AMIP:
GRIB:
Change Date: June 3, 2019, 3:46 p.m.
Term: covariance_over_longitude_of_northward_wind_and_air_temperature
Unit: K m s-1
Unit ref: KMTS
AMIP:
GRIB:
"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"). Air temperature is the bulk temperature of the air, not the surface (skin) temperature.
Change Date: June 3, 2019, 3:47 p.m.
Term: covariance_over_longitude_of_northward_wind_and_air_temperature
Unit: K m s-1
Unit ref: KMTS
AMIP:
GRIB:
Covariance refers to the sample covariance rather than the population covariance. The quantity with standard name covariance_over_longitude_of_northward_wind_and_air_temperature is the covariance of the deviations of meridional air velocity and air temperature about their respective zonal mean values. The data variable must be accompanied by a vertical coordinate variable or scalar coordinate variable and is calculated on an isosurface of that vertical coordinate. "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"). Air temperature is the bulk temperature of the air, not the surface (skin) temperature.