Determination of grounding line on the Amery Ice Shelf using Sentinel-1 radar interferometry data

LEI Haobo; ZHOU Chunxia; CHEN Yiming

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Determination of grounding line on the Amery Ice Shelf using Sentinel-1 radar interferometry data

机译：利用Sentinel-1雷达干涉数据确定Amery冰架上的接地线

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摘要

Delineation of the grounding line (GL) is necessary for calculating the mass balance of Antarctica, but GL measurements for most of the continent remain at a relatively coarse level. We used Sentinel-1 constellation data to map the GL of the Amery Ice Shelf (AIS) using double-differential synthetic aperture radar interferometry. The ice thickness anomaly deduced from hydrostatic equilibrium and existing Antarctic GL products is compared with our result. With this new and very accurate GL, we detected new ice rises in the north of the AIS. Our new measurement shows no major change of the AIS GL, particularly in the southernmost part.

机译：为了计算南极洲的质量平衡，必须划定接地线（GL），但是大多数大陆的GL测量值仍处于相对较粗的水平。我们使用Sentinel-1星座数据使用双差分合成孔径雷达干涉测量法绘制了Amery冰架（AIS）的GL。将由静水力平衡和现有南极GL产品推导出的冰厚异常与我们的结果进行了比较。有了这个非常精确的新GL，我们在AIS的北部发现了新的冰块上升。我们的新测量结果表明，AIS GL并未发生重大变化，尤其是在最南端。

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来源
《极地科学进展(英文版)》 |2017年第3期|204-213|共10页
作者
LEI Haobo; ZHOU Chunxia; CHEN Yiming;
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作者单位

Chinese Antarctic Center of Surveying and Mapping, Wuhan University, Wuhan 430079, China;

Chinese Antarctic Center of Surveying and Mapping, Wuhan University, Wuhan 430079, China;

Chinese Antarctic Center of Surveying and Mapping, Wuhan University, Wuhan 430079, China;

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收录信息中国科技论文与引文数据库(CSTPCD);
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正文语种 eng
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Determination of grounding line on the Amery Ice Shelf using Sentinel-1 radar interferometry data

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