Rapid decrease of mass balance observed in the Xiao (Lesser) Dongkemadi Glacier, in the central Tibetan Plateau
Rapid decrease of mass balance observed in the Xiao (Lesser) Dongkemadi Glacier, in the central Tibetan Plateau
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DOI：
10.1002/hyp.6865
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发表时间：
2008-07
影响因子：
3.2
通讯作者：
J. Pu;T. Yao;Meixue Yang;L. Tian;Ninlian Wang;Y. Ageta;K. Fujita
中科院分区：
文献类型：
--
作者：
J. Pu;T. Yao;Meixue Yang;L. Tian;Ninlian Wang;Y. Ageta;K. Fujita
自1989年以来，对位于青藏高原中部唐古拉山的小东克玛底冰川的物质平衡进行了监测。结果表明，该冰川物质平衡近期呈现亏损趋势，冰川终点也在退缩。1989-1993年期间，冰川物质平衡以正平衡为主，累计物质平衡达970 mm，但自1994年以来，除1997年出现较大的正平衡外，冰川物质平衡一直为负平衡。1998年的质量平衡为-701毫米，是一个极端负的冰川质量平衡年。平衡线高度呈显著上升趋势。自1994年以来，冰川的物质平衡已从显著的正物质平衡转变为强烈的负物质平衡。气象资料表明，物质平衡的迅速减少与夏季变暖有关。版权所有© 2007约翰威利父子有限公司。
The mass balance of the Xiao (Lesser) Dongkemadi Glacier located in the Tanggula Mountains, of the central Qinghai‐Tibetan Plateau has been monitored since 1989. The results show that the mass balance of the glacier has recently shown a deficit trend, and that the glacial terminus was also retreating. Positive mass balance of the glacier was dominant during the period 1989–1993, and the accumulated mass balance reached 970 mm. However, negative mass balance of the glacier has occurred since 1994, except for the large positive mass balance year 1997. The mass balance was − 701 mm in 1998, an extremely negative glacier mass balance year. The equilibrium line altitude showed a significant increasing trend. The mass balance of the glacier has changed from a significantly positive mass balance to a strongly negative mass balance since 1994. Meteorological data suggest that the rapid decrease in the mass balance is related to summer season warming. Copyright © 2007 John Wiley & Sons, Ltd.