Snowmelt in the basin of the Tadami River, an application of a heat balance model

Abstract

The amount of snowmelt in the basin of the Tadami River having an area of 702.3km2 was estimated by a heat balance method (Kondo and Yamazaki, 1990). The value of 50-100mmd-1 was obtained for snowmelt season. The estimated value of snowmelt was compared with the observed inflow data to the dam. The difference between the estimated and the observed values is ±10-20mmd-1 at most. It is considered that this difference is mainly due to the error of the estimated area-averaged meteorological data using for the heat balance method. It is especialy important to obtain the area-averaged radiation data.