【摘要】 贡巴冰川产水量高,冰川融水占流域年径流的60％。纯冰川径流模数110.1kL/s·km~2,年径流深2037.0mm。冰川径流年内分配不均匀,夏季占56.4％,春季和秋季分别占21.1％和22.5％。更多还原

【Abstract】 The Gongba Glacier is a maritime-type glacier, with a drainage area of 80.04 km2 in the glaciated area of and glacier area of 41.89km2. The glacier coverage is 53.7%. The firn line is 4900-5100m and the altitude of the teminal is 3900 m.At 3700 m a.s.l. in the glaciated area the mean annual temperature is 2.4℃ and the annual precipitation 1057.1mm. The annual precipitation near the firn line is estimated to be 1900mm or so.The total annual runoff in the Gongba glaciated area is composed of 15% ground water, 60% melt-water from glacier, 18% rainfall, and 7 % snow melt-water from bare hillside The Gongba Glacier produces plantiful water with a pure runoffmodulus of 110.1kL/s.km2 from the glacier.The runoff from the glacier is not well-distributed throughout the year. It produces 21.1% in spring, 56.4% in summer (from June to Aug.)and 27.5% in autumn.更多还原