Actual ET

A daily estimate of actual ET is obtained by the summation of interception evaporation, soil water evaporation, and plant transpiration. These water depletion components are then subtracted from their corresponding source and soil layers. Interception evaporation is removed from the interception storage, soil water evaporation is removed from the first and/or second soil layer (first layer is the thin evaporation layer, second layer can absorb from lower layers), and transpiration is removed from the appropriate soil layers containing roots and moisture.

Field Hydrologic Processes | Precipitation | Infiltration | Potential ET
Interception | Soil Water Evaporation | Plant Transpiration | Crop Water Stress
Root Water Uptake | Soil Water Redistribution | Irrigation