Elastic uplift in southeast Greenland due to rapid ice mass loss

被引:53
作者
Khan, Shfaqat A. [1 ]
Wahr, John
Stearns, Leigh A.
Hamilton, Gordon S.
van Dam, Tonie
Larson, Kristine M.
Francis, Olivier
机构
[1] Tech Univ Denmark, Danish Natl Space Ctr, DK-2100 Copenhagen, Denmark
[2] Univ Colorado, Dept Aerosp Engn Sci, Boulder, CO 80309 USA
[3] Univ Colorado, Dept Phys, Boulder, CO 80309 USA
[4] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA
[5] Univ Maine, Climate Change Inst, Orono, ME 04469 USA
[6] Univ Luxembourg, Fac Sci Technol & Commun, L-1511 Luxembourg, Luxembourg
关键词
D O I
10.1029/2007GL031468
中图分类号
P [天文学、地球科学];
学科分类号
07 [理学];
摘要
The rapid unloading of ice from the southeastern sector of the Greenland ice sheet between 2001 and 2006 caused an elastic uplift of similar to 35 mm at a GPS site in Kulusuk. Most of the uplift results from ice dynamic-induced volume losses on two nearby outlet glaciers. Volume loss from Helheim Glacier, calculated from sequential digital elevation models, contributes about similar to 16 mm of the observed uplift, with an additional similar to 5 mm from volume loss of Kangerdlugssuaq Glacier. The remaining uplift signal is attributed to significant melt-induced ice volume loss from the ice sheet margin along the southeast coast between 62 degrees N and 66 degrees N.
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页数:6
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