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Recent greenland ice mass loss by drainage system from satellite gravity observations

Science, ISSN: 0036-8075, Vol: 314, Issue: 5803, Page: 1286-1289
2006
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Article Description

Mass changes of the Greenland Ice Sheet resolved by drainage system regions were derived from a local mass concentration analysis of NASA-Deutsches Zentrum für Luft- und Raumfahrt Gravity Recovery and Climate Experiment (GRACE mission) observations. From 2003 to 2005, the ice sheet lost 101 ± 16 gigaton/year, with a gain of 54 gigaton/year above 2000 meters and a loss of 155 gigaton/year at lower elevations. The lower elevations show a large seasonal cycle, with mass losses during summer melting followed by gains from fall through spring. The overall rate of loss reflects a considerable change in trend (-113 ± 17 gigaton/year) from a near balance during the 1990s but is smaller than some other recent estimates.

Bibliographic Details

S. B. Luthcke; D. D. Rowlands; R. D. Ray; F. G. Lemoine; H. J. Zwally; W. Abdalati; R. S. Nerem; J. J. McCarthy; D. S. Chinn

American Association for the Advancement of Science (AAAS)

Multidisciplinary

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