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.
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.
Datasets used in this visualization
Landsat-7 Band Combination 3, 2, 1ID: 537Collected with ETM+ 2009-07-29
Terra Calving Front LinesID: 705Analysis Collected with ASTER 2005-07-02, 2006-08-08
Calving front lines derived from Terra/ASTER imagery.See all pages that use this dataset
Landsat Calving Front LineID: 704Analysis Collected with TM 2009-07-29, 2004-10-03, 2003-08-23, 2002-09-03, 2001-07-07
Calving front lines derived from Landsat imagery.See all pages that use this dataset
Landsat-7 Band Combination 7, 4, 2ID: 650Collected with ETM+ 2009-07-29
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