the definition of water yield
Dear NCP team,
I have two questions need your kind support:
1. The definition of water yield for the water yield module: is it correct that water yield= rainfall-evapotranspiration=surface runoff +baseflow+subsurface runoff? if so how about the water retention (or discharged to) in the soil? could I calculate the soil water retention this way: soil water=actual precip-AET-water yield?
2. Based on Model output, the water yield of built-up land is larger than that of vegetation land (e.g forest and pasture), the AET for built up land is smaller that AET for vegetation land. Are the results correct?
Thank you very much for your help. Looking forward to your anwer.
Su at Eawag, switzerland