We present spatiotemporal mass balance trends for the Antarctic Ice Sheet from a statistical inversion of satellite altimetry, gravimetry, and elastic-corrected GPS data for the period 2003-2013. Our method simultaneously determines annual trends in ice dynamics, surface mass balance anomalies, and a time-invariant solution for glacio-isostatic adjustment while remaining largely independent of forward models. We establish that over the period 2003-2013, Antarctica has been losing mass at a rate of -84 ± 22 Gt yr-1, with a sustained negative mean trend of dynamic imbalance of -111 ± 13 Gt yr-1. West Antarctica is the largest contributor with -112 ± 10 Gt yr-1, mainly triggered by high thinning rates of glaciers draining into the Amundsen Sea Embayment. The Antarctic Peninsula has experienced a dramatic increase in mass loss in the last decade, with a mean rate of -28 ± 7 Gt yr-1 and significantly higher values for the most recent years following the destabilization of the Southern Antarctic Peninsula around 2010. The total mass loss is partly compensated by a significant mass gain of 56 ± 18 Gt yr-1 in East Antarctica due to a positive trend of surface mass balance anomalies.

中文翻译：

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卫星高度计，重力和GPS数据联合反演的时空南极冰盖质量趋势，冰川等静压调整和地表过程。

我们通过2003-2013年期间卫星测高，重力法和弹性校正的GPS数据的统计反演，介绍了南极冰盖的时空质量平衡趋势。我们的方法可同时确定冰动力学，地表质量平衡异常和冰川等静压调整的时不变解的年度趋势，同时又很大程度上不依赖于正演模型。我们确定，在2003-2013年期间，南极洲以-84±22 Gt yr-1的速度失重，动态失衡的持续负平均趋势为-111±13 Gt yr-1。西南极洲的最大贡献是-112±10 Gt yr-1，这主要是由于流入Amundsen Sea Embayment的冰川稀疏率高所致。在过去十年中，南极半岛的质量损失急剧增加，