论文部分内容阅读
格陵兰冰原是覆盖格陵兰岛约80%地区的单一冰盖,为北半球最大冰体。南北长2 530千米,最宽(北缘附近)1 094千米,平均厚度1.5千米左右,面积1 833 900平方千米。格陵兰冰原覆盖在磲状盆地上,基岩表面与海面等高。冰原中央比四周边缘厚,有2个升起的冰穹。北边一个在格陵兰中东部,海拔3千米,是冰原最厚的地方,温度最低,年平均-31℃。南边一个海拔2.5千米。冰层由顶峰向四周移动,其边缘到达梅尔维
The Greenland Ice Sheet, a single ice sheet covering about 80% of Greenland, is the largest ice body in the northern hemisphere. North-South length of 2 530 km, the widest (near the northern margin) 1 094 km, an average thickness of about 1.5 km, an area of 1,833,900 square kilometers. The Greenland ice sheet covers the riparian basin, and the bedrock surface is the same as the sea surface. The central ice than the surrounding edge of the thick, there are two rising dome. One in the north of Greenland in the eastern, elevation 3 km, is the thickest ice field, the lowest temperature, the average annual -31 ℃. An elevation of 2.5 kilometers south. The ice moved from its peak to its surroundings, with the edge reaching Melville