极地研究2017，Vol.29Issue(3)：305-313,9.DOI:10.13679/j.jdyj.2017.3.305
南极冰盖接地线研究综述
RESEARCH PROGRESS ON ANTARCTIC ICE SHEET GROUNDING LINE
摘要
Abstract
Grounding line is the boundary between inland grounded ice sheet and floating ice shelf. The precise extraction of its location has a significant impact on the Antarctic ice sheet mass balance. Grounding line extraction method has been developed from in situ RES and GPS of small-scale to remote sensing measure-ments of large-scale. Four main techniques of remote sensing measurements, including hydrostatic equilib-rium, slope analysis, repeated track analysis and differential SAR interferometry, lay the foundation of five released grounding line products of the whole Antarctica, named MOA, ASAID, ICESat, MEaSUREs and Synthesized grounding line product. With the development of remote sensing technology, multi-source re-mote sensing data will be used for grounding line extraction with high-precision, and its dynamic changes monitoring with longer temporal scale in whole Antarctica. Moreover, the change mechanism of the grounding line position coupled with bottom melt of ice shelf, bed topography and ocean temperature, and building models of its relationship with climate change will be future research hotpots.关键词
南极冰盖/接地线/接地区域/遥感观测Key words
Antarctic ice sheet/grounding line/grounding zone/remote sensing monitoring引用本文复制引用
常沛,周春霞,雷皓博..南极冰盖接地线研究综述[J].极地研究,2017,29(3):305-313,9.基金项目
国家自然科学基金(41376187、41531069)、国家973计划(2013CBA01804)和极地专项(CHINARE2016-02-04)资助 （41376187、41531069）
