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Reference Evapotranspiration


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

Within Season Requirements:
Application or Policy Supported Related Variables Frequency of Update Spatial Unit

SDG 6.4, drought, climate adaptation, water & irrigation management

Daily - monthly, within each season

Field - Watershed