气候变化领域集成服务门户(CCPortal): Ice-shelf melting around antarctica

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DOI	10.1126/science.1235798
	Ice-shelf melting around antarctica
	Rignot E.; Jacobs S.; Mouginot J.; Scheuchl B.
发表日期	2013
ISSN	0036-8075
起始页码	266
结束页码	270
卷号	341 期号:6143
英文摘要	We compare the volume flux divergence of Antarctic ice shelves in 2007 and 2008 with 1979 to 2010 surface accumulation and 2003 to 2008 thinning to determine their rates of melting and mass balance. Basal melt of 1325 ± 235 gigatons per year (Gt/year) exceeds a calving flux of 1089 ± 139 Gt/year, making ice-shelf melting the largest ablation process in Antarctica. The giant cold-cavity Ross, Filchner, and Ronne ice shelves covering two-thirds of the total ice-shelf area account for only 15% of net melting. Half of the meltwater comes from 10 small, warm-cavity Southeast Pacific ice shelves occupying 8% of the area. A similar high melt/area ratio is found for six East Antarctic ice shelves, implying undocumented strong ocean thermal forcing on their deep grounding lines.
英文关键词	sea water; ablation; climate forcing; glacier mass balance; grounding line; ice shelf; ice thickness; melting; meltwater; sea ice; volume transport; analytical parameters; Antarctica; article; cold; continental shelf; human; ice shelf; ice shelf thickness; ice shelf velocity; measurement precision; melting point; priority journal; sea; surface property; temperature measurement; thermal analysis; Antarctica; Ross Sea; Southern Ocean
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/245224
作者单位	Department of Earth System Science, University of California, Irvine, CA 92697, United States; Jet Propulsion Laboratory, Pasadena, CA 91109, United States; Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY 10964, United States
推荐引用方式 GB/T 7714	Rignot E.,Jacobs S.,Mouginot J.,et al. Ice-shelf melting around antarctica[J],2013,341(6143).
APA	Rignot E.,Jacobs S.,Mouginot J.,&Scheuchl B..(2013).Ice-shelf melting around antarctica.Science,341(6143).
MLA	Rignot E.,et al."Ice-shelf melting around antarctica".Science 341.6143(2013).