ESTIMATING BASIN EVAPOTRANSPIRATION USING DISTRIBUTED HYDROLOGIC MODEL

Approach to estimate regional evapotranspiration from poten-tial evaporation using a distributed hydrologic model. The reduction of actual evapotranspiration from potential eva-poration is estimated using the simplified Philip's soil moisture relationship with the combination of a physically based distributed tank model. Results are also compared with the actual evapotranpiration estimated by using Morton's complementary relationship areal evapotranspiration model and Brusaert-Stricker's advection-aridity model.