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Jakobshavn Glacier Calving Front Recession from 1851 to 2009

Jakobshavn Isbrae is located on the west coast of Greenland at Latitude 69 N. The ice front, where the glacier calves into the sea, receded more than 40 km between 1850 and 2006. Between 1850 and 1964 the ice front retreated at a steady rate of about 0.3 km/yr, after which it occupied approximately the same location until 2001, when the ice front began to recede again, but far more rapidly at about 3 km/yr. As more ice moves from glaciers on land into the ocean, it causes a rise in sea level. Jakobshavn Isbrae is Greenland's largest outlet glacier, draining 6.5 percent of Greenland's ice sheet area. The ice stream's speed-up and near-doubling of the ice flow from land into the ocean has increased the rate of sea level rise by about .06 millimeters (about .002 inches) per year, or roughly 4 percent of the 20th century rate of sea level increase.
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In this image, the location of the successive calving fronts of the Jakobshavn Isbrae glacier between 1851 and 2009 are overlain on a Landsat image from 7/29/2009.    In this image, the location of the successive calving fronts of the Jakobshavn Isbrae glacier between 1851 and 2009 are overlain on a Landsat image from 7/29/2009.

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Short URL to This Page:http://svs.gsfc.nasa.gov/goto?3630
Animation Number:3630
Completed:2006-12-18
Animators:Cindy Starr (GST) (Lead)
 Horace Mitchell (NASA/GSFC)
Scientist:Bob Bindschadler (NASA/GSFC)
Platforms/Sensors/Data Sets:Landsat-7/ETM+/Band Combination 7, 4, 2 (2009-07-29)
 Landsat/TM/Calving Front Line (2009-07-29, 2004-10-03, 2003-08-23, 2002-09-03, 2001-07-07)
 Terra/ASTER/Calving Front Lines (2005-07-02, 2006-08-08)
 Landsat-7/ETM+/Band Combination 3, 2, 1 (2009-07-29)
Please give credit for this item to:
NASA/Goddard Space Flight Center Scientific Visualization Studio
Historic calving front locations courtesy of Anker Weidick and Ole Bennike, Geological Survey of Denmark and Greenland.
 
Keywords:
DLESE >> Cryology
SVS >> Global Warming
GCMD >> Earth Science >> Cryosphere
GCMD >> Earth Science >> Hydrosphere >> Glaciers/Ice Sheets
GCMD >> Earth Science >> Hydrosphere >> Glaciers/Ice Sheets >> Glacier Motion/Ice Sheet Motion
GCMD >> Earth Science >> Hydrosphere >> Glaciers/Ice Sheets >> Glaciers
GCMD >> Earth Science >> Hydrosphere >> Snow/Ice >> Ice Growth/Melt
SVS >> Copenhagen
SVS >> For Educators
SVS >> Glacial Processes
SVS >> Greenland
SVS >> Sea Level Rise
 
 


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Many of our multimedia items use the GCMD keywords. These keywords can be found on the Internet with the following citation:
Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 8.0.0.0.0

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