气候变化领域集成服务门户(CCPortal): Aerial photographs reveal late-20th-century dynamic ice loss in Northwestern Greenland

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DOI	10.1126/science.1220614
	Aerial photographs reveal late-20th-century dynamic ice loss in Northwestern Greenland
	Kjær K.H.; Khan S.A.; Korsgaard N.J.; Wahr J.; Bamber J.L.; Hurkmans R.; Van Den Broeke M.; Timm L.H.; Kjeldsen K.K.; Bjørk A.A.; Larsen N.K.; Jørgensen L.T.; Færch-Jensen A.; Willerslev E.
发表日期	2012
ISSN	0036-8075
起始页码	569
结束页码	573
卷号	337 期号:6094
英文摘要	Global warming is predicted to have a profound impact on the Greenland Ice Sheet and its contribution to global sea-level rise. Recent mass loss in the northwest of Greenland has been substantial. Using aerial photographs, we produced digital elevation models and extended the time record of recent observed marginal dynamic thinning back to the mid-1980s. We reveal two independent dynamic ice loss events on the northwestern Greenland Ice Sheet margin: from 1985 to 1993 and 2005 to 2010, which were separated by limited mass changes. Our results suggest that the ice mass changes in this sector were primarily caused by short-lived dynamic ice loss events rather than changes in the surface mass balance. This finding challenges predictions about the future response of the Greenland Ice Sheet to increasing global temperatures.
英文关键词	aerial photograph; global warming; ice retreat; ice thickness; mass balance; remote sensing; sea level; twentieth century; article; atmosphere; climate change; dynamics; energy; Greenland; history; ice sheet; image analysis; photography; precipitation; priority journal; sea; sea surface temperature; velocity; Arctic; Greenland; Greenland Ice Sheet
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/244357
作者单位	Centre for GeoGenetics, Natural History Museum, University of Copenhagen, Copenhagen, Denmark; DTU Space-National Space Institute, Technical University of Denmark, Department of Geodesy, Lyngby, Denmark; Department of Physics, Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, United States; Bristol Glaciology Centre, University of Bristol, Bristol, United Kingdom; Institute for Marine and Atmospheric Research, Utrecht University, Utrecht, Netherlands; Department of Geoscience, Aarhus University, Aarhus, Denmark; Danish National Cadastre and Survey, Copenhagen, Denmark
推荐引用方式 GB/T 7714	Kjær K.H.,Khan S.A.,Korsgaard N.J.,et al. Aerial photographs reveal late-20th-century dynamic ice loss in Northwestern Greenland[J],2012,337(6094).
APA	Kjær K.H..,Khan S.A..,Korsgaard N.J..,Wahr J..,Bamber J.L..,...&Willerslev E..(2012).Aerial photographs reveal late-20th-century dynamic ice loss in Northwestern Greenland.Science,337(6094).
MLA	Kjær K.H.,et al."Aerial photographs reveal late-20th-century dynamic ice loss in Northwestern Greenland".Science 337.6094(2012).