摘要
海螺沟冰川是一条典型的季风海洋性冰川,该冰川表现有如下一些主要特征:高大的贡嘎山山体和优越的物质补给条件是冰川生存的主要原因;冰川积累区的成冰,主要是当年积雪以融化-再冻结为主要变质成冰作用,平衡线以上附加冰带宽阔;冰川消融区冰层温度接近融点温度;冰川运动速度快。冰舌中段主流线处年平均运动速度为171.4m;通过冰川水量平衡计算,近年来冰川均表现为负平衡,冰舌末端持续后退。
Hailuogou Glacier is referred to as a typical monsoonal maritime glacier. Through field observations on the glacier some principal characteristics are summarized as following the surviving of the glacier is attributed to the aboundant accumulation from grand high mountain range. The main process of ice formation is the metamorphism from melting-refreezing of the seasonally accumulated snow, therefore there exists a broad belt of superimposed ice. Ice temperatue in the ablation area is near to the melting point so that the glacier has a rapid surface velocity. Mean velocity at the middle section of the ablation area is up to 171.4 m/ year. Based on, measurements of water balance in the glacier catchment in recent years this galcier shows a tendency of mass lose and the glacier terminus is retreating.
出处
《冰川冻土》
CSCD
北大核心
1996年第S1期51-59,共9页
Journal of Glaciology and Geocryology
关键词
冰川
海洋性特征
贡嘎山
glacier, Maritime characteristics, Gongga Mountains
