抄録
Daily snow water equivalent, snow depth and snow density distribution were estimated form SWE model with the meteorological data, satellite data and DEM. The SWE model was composed of snowfall model and the snowmelt model. The daily snowfall was estimated using weighted average distance method from AMeDAS data. The daily snowmelt was estimated using the degree-day method in the snowmelt model. Comparing snow distribution from the SWE model, the snowmelt rate factor was not much different in east and west Japan. As a result, the snowmelt rate factor was about 4 to 5 millimeter per day per degree in one snow season. The process of snowfall-accumulated was also evaluated in the different regions.
