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Modeling of evapotranspiration from homogenous soils
Author(s) -
Markar M. S.,
Mein Russell G.
Publication year - 1987
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/wr023i010p02001
Subject(s) - evapotranspiration , transpiration , soil water , richards equation , sink (geography) , environmental science , soil science , water content , hydrology (agriculture) , infiltration (hvac) , geotechnical engineering , geology , meteorology , chemistry , ecology , biochemistry , photosynthesis , cartography , physics , biology , geography
A sink term to simulate the removal of water by transpiration from the soil profile has been added to the moisture flow model of Clapp (1982). The resultant model gives results comparable to those obtained from a finite difference solution of the Richards equation modified for transpiration, but uses only about 5% of the computer time. Example applications show that the model is capable of predicting evapotranspiration rates from homogenous soils without using fitted parameters.