Snow Accumulation in North Greenland over the Last Millennium
Snow Accumulation in North Greenland over the Last Millennium
复制标题
过去千年格陵兰岛北部的积雪
DOI:
10.1007/978-3-319-13865-7_21
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发表时间:
2015
期刊:
影响因子:
--
通讯作者:
S. Kipfstuhl
中科院分区:
文献类型:
--
作者:
S. Weißbach;A. Wegner;S. Kipfstuhl
Knowledge of snow accumulation rates of the large polar ice sheets and their variability over time is crucial for mass budget studies and sea level predictions. Here we present mean long-term snow accumulation rates of 12 shallow ice cores drilled by the North Greenland traverse in the northern part of Greenland. The ice core records cover the last 500–1000 years. We find a trend of decreasing accumulation rate from the southwest (~180 mmWE/a) to northeast (~95 mmWE/a). Ice divide sites show higher accumulation rates but also higher variability (up to 20 %) than sites off the ice divides (less than 10 %). Unlike a recent modeling study our results indicate no change in the accumulation in the north of Greenland during the last 400 years.