Measurements of time-variable gravity show mass loss in Antarctica
Measurements of time-variable gravity show mass loss in Antarctica
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DOI：
10.1126/science.1123785
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发表时间：
2006-03-24
期刊：
影响因子：
56.9
通讯作者：
Wahr, J
中科院分区：
文献类型：
--
作者：
Velicogna, I;Wahr, J
利用重力恢复和气候实验卫星的时变重力测量，我们确定了2002-2005年期间南极冰盖的质量变化。我们发现，冰盖的质量以每年152 +/- 80立方公里的速度显著减少，相当于每年全球海平面上升0.4 +/- 0.2毫米。大部分的质量损失来自西南极冰盖。
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.