A Reconciled Estimate of Glacier Contributions to Sea Level Rise: 2003 to 2009
A Reconciled Estimate of Glacier Contributions to Sea Level Rise: 2003 to 2009
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DOI：
10.1126/science.1234532
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发表时间：
2013-05-17
期刊：
影响因子：
56.9
通讯作者：
Paul, Frank
中科院分区：
文献类型：
--
作者：
Gardner, Alex S.;Moholdt, Geir;Paul, Frank
与格陵兰和南极冰盖不同的冰川正在向世界海洋流失大量的水。然而，对它们对海平面上升的贡献的估计不一致。我们提供了一个共识的估计标准化现有的，并创建新的，质量预算估计卫星重力测量和测高，并从当地的冰川记录。在许多区域，当地的测量结果比卫星估计的结果更为负面。在2003-2009年期间，所有地区都有质量损失，其中加拿大北极地区、阿拉斯加、格陵兰沿海地区、南部安第斯山脉和亚洲高山地区的损失最大，但南极洲的冰川几乎没有损失。在此期间，全球质量预算为每年-259 +/-28千兆吨，相当于两个冰盖的综合损失，占观测到的海平面上升的29 +/-13%。
Glaciers distinct from the Greenland and Antarctic Ice Sheets are losing large amounts of water to the world's oceans. However, estimates of their contribution to sea level rise disagree. We provide a consensus estimate by standardizing existing, and creating new, mass-budget estimates from satellite gravimetry and altimetry and from local glaciological records. In many regions, local measurements are more negative than satellite-based estimates. All regions lost mass during 2003-2009, with the largest losses from Arctic Canada, Alaska, coastal Greenland, the southern Andes, and high-mountain Asia, but there was little loss from glaciers in Antarctica. Over this period, the global mass budget was -259 +/- 28 gigatons per year, equivalent to the combined loss from both ice sheets and accounting for 29 +/- 13% of the observed sea level rise.