Measurements of time-variable gravity show mass loss in Antarctica

被引：440
作者：
Velicogna, I
Wahr, J
机构：
[1] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA
[2] Univ Colorado, Dept Phys, Boulder, CO 80309 USA
[3] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
来源：
SCIENCE | 2006年 / 311卷 / 5768期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1126/science.1123785
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
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.
引用
收藏
页码：1754 / 1756
页数：3
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