Earth  ID: 3395

Jakobshavn Glacier Calving Front Recession from 1850 to 2006

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. After 2004, the glacier began retreating up its two main tributaries: one to the north, and a more rapid one to the southeast.
These changes are important for many reasons. 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.

Visualization Credits

Cindy Starr (GST): Lead Visualizer
Robert Thomas (NASA/GSFC-LaRC): Scientist
Bob Bindschadler (NASA/GSFC): Scientist
Ole Bennike (Geological Survey of Denmark and Greenland): Scientist
Anker Weidick (Geological Survey of Denmark and Greenland): Scientist
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

Science Paper:
Weidick, A. and Bennike, O.: Quaternary glaciation history and glaciology of Jakobshavn Isbrae and the Disko Bugt region, West Greenland: a review.

Short URL to share this page:
http://svs.gsfc.nasa.gov/3395

Mission:
Landsat

Data Used:
Landsat-7/ETM+/Band Combination 3, 2, 1 Historical calving front locations provided by A. Weidick and O. Bennike; Recent calving front locations derived from Landsat Imagery (07/07/2001, 09/03/2002, 08/23/2003, 10/03/2004) and ASTER Imagery(07/02/2005, 08/08/2006); Landsat Imagery shown (07/07/2001)
Note: While we identify the data sets used in these visualizations, we do not store any further details nor the data sets themselves on our site.

Dates of Data Used:
Historical calving front locations provided by A. Weidick and O. Bennike; Recent calving front locations derived from Landsat Imagery (07/07/2001, 09/03/2002, 08/23/2003, 10/03/2004) and ASTER Imagery(07/02/2005, 08/08/2006); Landsat Imagery shown (07/07/2001)

Keywords:
DLESE >> Cryology
GCMD >> Earth Science >> Cryosphere
GCMD >> Earth Science >> Cryosphere >> Snow/Ice
GCMD >> Earth Science >> Hydrosphere >> Glaciers/Ice Sheets
GCMD >> Earth Science >> Hydrosphere >> Snow/Ice
GCMD >> Earth Science >> Cryosphere >> Sea Ice >> Ice Extent
GCMD >> Earth Science >> Cryosphere >> Sea Ice >> Ice Floes
GCMD >> Earth Science >> Cryosphere >> Sea Ice >> Ice Growth/Melt
GCMD >> Earth Science >> Cryosphere >> Sea Ice >> Icebergs
GCMD >> Earth Science >> Cryosphere >> Sea Ice >> Pack Ice
GCMD >> Earth Science >> Cryosphere >> Snow/Ice >> Freeze/Thaw
GCMD >> Earth Science >> Cryosphere >> Snow/Ice >> Ice Extent
GCMD >> Earth Science >> Cryosphere >> Snow/Ice >> Ice Growth/Melt
GCMD >> Earth Science >> Cryosphere >> Snow/Ice >> Ice Motion
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 >> Freeze/Thaw
GCMD >> Earth Science >> Hydrosphere >> Snow/Ice >> Ice Extent
GCMD >> Earth Science >> Hydrosphere >> Snow/Ice >> Ice Growth/Melt
GCMD >> Earth Science >> Hydrosphere >> Snow/Ice >> Ice Motion
NASA Science >> Earth

GCMD 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