The Greenland ice sheet: a global warming signal?

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, w...

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Bibliographic Details
Published in:Weather
Main Authors: Hanna, Edward, Braithwaite, Roger
Format: Article in Journal/Newspaper
Language:unknown
Published: Wiley for Royal Meteorological Society 2003
Subjects:
Online Access:https://eprints.lincoln.ac.uk/id/eprint/26172/
https://doi.org/10.1256/wea.248.02
Description
Summary: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.