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The Greenland ice sheet: A global warming signal?

descriptionPublicationkeyboard_double_arrow_right Article 01 Sep 2003 United Kingdom Publisher:WileyJournal:Weather, volume 58, pages 351-357 (issn: 0043-1656, eissn: 1477-8696,

Authors: Edward Hanna; Roger Braithwaite;

doi: 10.1256/wea.248.02

The Greenland ice sheet: A global warming signal?

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Abstract

The Greenland ice sheet contains about a tenth of the world’s fresh water, and if it were to melt would cause a 7 m rise in global sea-level (Intergovernmental Panel on Climate Change (IPCC) 2001). The ice sheet covers 82% of the total area of Greenland (Ohmura et al. 1999). It is a huge ice dome, with two main peaks: one at 3220 m at Summit (about 728N, 298W), and the other at 2850 m in the south at about 648N, 448W (Philip 1999) (Fig. 1). The ice sheet is up to about 3 km thick in the middle, and its great weight depresses the underlying crust which assumes the concave shape of a saucer. The ice sheet has waxed and waned in response to natural changes in insolation and climatic feedbacks over millennia.

Country

United Kingdom

Related Organizations

University of Salford
United Kingdom
Plymouth University
United Kingdom
University of Lincoln
United Kingdom

Keywords

550, F890 - Physical geographical sciences not elsewhere classified, Greenland ice sheet, climate

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