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

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【作者】 LEI HaoboZHOU ChunxiaCHEN Yiming

【Author】 LEI Haobo;ZHOU Chunxia;CHEN Yiming;Chinese Antarctic Center of Surveying and Mapping, Wuhan University;

【机构】 Chinese Antarctic Center of Surveying and Mapping, Wuhan University

【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.

【基金】 supported by National Program on Key Basic Research Project (Program 973, Grant no. 2013CBA01804);National Natural Science Foundation of China (Grant nos. 41531069 and 41376187);Chinese Polar Environment Comprehensive Investigation & Assessment Program (Grant no. CHINARE2016-02-04)
【所属期刊栏目】 Articles (2017年03期)
  • 【DOI】10.13679/j.advps.2017.3.00204
  • 【分类号】P332;P343.6
  • 【下载频次】9
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