Reference Evapotranspiration
Definition
ETo from the reference surface. The reference surface is a hypothetical grass reference crop with an assumed crop height of 0.12 m, a fixed surface resistance of 70 s m-1 and an albedo of 0.23. (FAO).
GEOGLAM Agriculture Indicator Category
Agricultural Land Includes or is Indicated by
Agriculture Mask
EAV Stewards
Within Season Requirements:
| Application or Policy Supported | Related Variables | Frequency of Update | Spatial Unit |
|---|---|---|---|
|
SDG 6.4, drought, climate adaptation, water & irrigation management |
ETa Land Surface Temperature, Precipitation, Air temperature, Surface Soil Moisture, Root Zone Soil Moisture, Incoming radiation, Wind Speed, Relative humidity, Cropland Mask |
Daily - monthly, within each season |
Field - Watershed |