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Measurements of Time-Variable Gravity Show Mass Loss in Antarctica

Science  24 Mar 2006:
Vol. 311, Issue 5768, pp. 1754-1756
DOI: 10.1126/science.1123785

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Abstract

Using measurements of time-variable gravity from the Gravity Recovery and Climate Experiment satellites, we determined mass variations of the Antarctic ice sheet during 2002–2005. We found that the mass of the ice sheet decreased significantly, at a rate of 152 ± 80 cubic kilometers of ice per year, which is equivalent to 0.4 ± 0.2 millimeters of global sea-level rise per year. Most of this mass loss came from the West Antarctic Ice Sheet.

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