Mountain glaciers and ice caps around Antarctica make a large sea-level rise contribution

被引：122

作者：

Hock, Regine ^{[1
,3
]}

de Woul, Mattias ^{[2
]}

Radic, Valentina ^{[1
]}

Dyurgerov, Mark ^{[2
]}

机构：

[1] Univ Alaska Fairbanks, Inst Geophys, Fairbanks, AK 99775 USA

[2] Stockholm Univ, Dept Phys Geog & Quaternary Geol, SE-10691 Stockholm, Sweden

[3] Uppsala Univ, Dept Earth Sci, Uppsala, Sweden

来源：

GEOPHYSICAL RESEARCH LETTERS | 2009年 / 36卷

关键词：

MASS-BALANCE; CLIMATE-CHANGE; SENSITIVITY; SURFACE;

D O I：

10.1029/2008GL037020

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The Intergovernmental Panel on Climate Change (IPCC) estimates that the sum of all contributions to sea-level rise for the period 1961-2004 was 1.1 +/- 0.5 mm a(-1), leaving 0.7 +/- 0.7 of the 1.8 +/- 0.5 mm a(-1) observed sea-level rise unexplained. Here, we compute the global surface mass balance of all mountain glaciers and ice caps (MG&IC), and find that part of this much-discussed gap can be attributed to a larger contribution than previously assumed from mass loss of MG&IC, especially those around the Antarctic Peninsula. We estimate global surface mass loss of all MG&IC as 0.79 +/- 0.34 mm a(-1) sea-level equivalent (SLE) compared to IPCC's 0.50 +/- 0.18 mm a(-1). The Antarctic MG&IC contributed 28% of the global estimate due to exceptional warming around the Antarctic Peninsula and high sensitivities to temperature similar to those we find in Iceland, Patagonia and Alaska. Citation: Hock, R., M. de Woul, V. Radic, and M. Dyurgerov (2009), Mountain glaciers and ice caps around Antarctica make a large sea-level rise contribution, Geophys. Res. Lett., 36, L07501, doi:10.1029/2008GL037020.

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页数：5

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