MODELING THE EVAPOTRANSPIRATION USING ADVANCED GIS DELINEATION AND ITS APPLICATION TO URBAN RIVER BASIN

Abstract

Precise estimation of evapotranspiration is one of the important factors for air temperature estimationmodel. In order to estimate evapotranspiration considering the condition of land use recognition and soil moisture content, evapotranspiration model using advanced GIS delineation was developed. This model was applied to the upper Kanda river basin whose catchment area is dominated by urban area to estimate evapotranspiration in 2011. It was found that the model considering land use recognition and soil moisture content can estimate evapotranspiration by comparing the calculation result and observed value.