Snow volume in Tohoku district is evaluated by using measured snow covered area and snow depth distribution model. Snow covered area is detected from NOAA/AVHRRda ta by authors shceme. In order to obtain snow distribution of whole Tohoku district, a new method is used to composit three different images. The snow depth distribution is studied empirically. The dependency of snow depth on height, latitude and longitude is comfirmed by referring AMeDASda ta. Combining above methods, snow volume in Tohoku district at the first ten days of Feburary is estimated.
