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Polar ice sheets: a review

Published online by Cambridge University Press:  27 October 2009

G. de Q. Robin
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At the present time, only Antarctica and Greenland carry ice sheets comparable with the ice sheets that covered vast areas of the Northern Hemisphere as recently as 20 000 years ago. At the time of maximum glaciation, some 300 000 years ago, the volume of ice on earth was three times what it is today, and it covered the northern parts of continents all around the Arctic Ocean. In North America, ice stretched south as far as Kansas; in Europe, it extended down ot the River Thames and the Sudety mountains and covered much of Siberia. Even now, the Antarctic ice sheet covers an area of 12 million km2 and in places reaches depths of more than 4 km. The smaller Greenland ice sheet has an area of 1.8 million km2 and exceeds 3 km in depth.

Type
Articles
Information
Polar Record , Volume 16 , Issue 100 , January 1972 , pp. 5 - 22
Copyright
Copyright © Cambridge University Press 1972

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