Development of a Distributed Hydrologic Model Using SMPT Model and its Application to the Azuma Upperriver Experimental Basin

Abstract

The objective of this study is to develop a distributed hydrologic model using SMPT (Soil Moisture Parameter Tank model) which was presented by Ando et. al.(1982). The watershed basin is divided a grid cell of 50m in which direct runoff, evaporation, and ground water runoff was calculated. The model is applied to simulate water cycle in the Azuma Upper Experimental basin (1.81km²) witha time step of a day. The model parameter is calibrated through the compare the simulated river discharge, groundwater levels and with the observed value.