積雪のある流域における水収支について
只見川滝ダム流域における事例解析
1994 年 38 巻 p. 113-118
詳細
1994 年 38 巻 p. 113-118
Annual water balance is investigated in the Taki dam basin, which area is about 2, 000km2 and has heavy snow area. A method of snowfall correction on precipitation, the Thornthwaite method on evapotranspiration and a simple balance model on ground water are applied to evaluate each components in hydrological cycle and the total balance is discussed. Snowmelt volume is calculated from both the tank model and water balance equation and the runoff delay of meltwater is discussed. Conclusions are; 1. snowdepth distribution depends on the total snowfall volume 2. actual evapotranspiration can be estimated by the Thornthwaite method and 3. daily snowmelt runoff is almost constant.
