water_potential_evapotranspiration_amount

under discussion
Created: 24 Apr 2023
Proposer: Beate Geyer
Proposed Date: 2021-06-18
Change Date: 24 Apr 2023, 3:31 p.m.
Term: water_potential_evapotranspiration_amount
Unit: kg m-2
Unit ref: KMP2
AMIP:
GRIB:
"Water" means water in all phases. "Evapotranspiration" means all water vapor fluxes into the atmosphere from the surface: liquid evaporation, sublimation, and transpiration. Evaporation is the conversion of liquid or solid into vapor. Transpiration is the process by which water is carried from the roots of plants and evaporates from the stomata. (The conversion of solid alone into vapor is called "sublimation".) Potential evapotranspiration is the rate at which evaporation would take place under unaltered ambient conditions (temperature, relative humidity, wind, etc.) if the supply of water were unlimited, on the surface as if from an open water surface and unlimited in the soil. "Amount" means mass per unit area.