Document Detail


Aerial photographs reveal late-20th-century dynamic ice loss in northwestern greenland.
MedLine Citation:
PMID:  22859486     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
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.
Authors:
Kurt H Kjær; Shfaqat A Khan; Niels J Korsgaard; John Wahr; Jonathan L Bamber; Ruud Hurkmans; Michiel van den Broeke; Lars H Timm; Kristian K Kjeldsen; Anders A Bjørk; Nicolaj K Larsen; Lars Tyge Jørgensen; Anders Færch-Jensen; Eske Willerslev
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Science (New York, N.Y.)     Volume:  337     ISSN:  1095-9203     ISO Abbreviation:  Science     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-08-03     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0404511     Medline TA:  Science     Country:  United States    
Other Details:
Languages:  eng     Pagination:  569-73     Citation Subset:  IM    
Affiliation:
Centre for GeoGenetics, Natural History Museum, University of Copenhagen, Copenhagen, Denmark.
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