Earth  ID: 3141

Jakobshavn Glacier Ice Flow (WMS)

Visualizations by Eric Sokolowsky Released on March 30, 2005
Since measurements of Jakobshavn Isbrae were first taken in 1850, the glacier has gradually receded, finally coming to rest at a certain point for the past 5 decades. However, from 1997 to 2003, the glacier has begun to recede again, this time almost doubling in speed. The finding is important for many reasons. For starters, as more ice moves from glaciers on land into the ocean, it raises sea levels. 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 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. This animation shows a time-lapse sequence of the ice flowing toward the ocean. In recent years, even ice that has traditionally remained in place is now being pulled down to the edge of land.
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This animation shows a time-lapse sequence of the glaciers ice flow. This animation shows only a small section of the full imagery. The full imagery can be found in the frames area.

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Visualization Credits

Eric Sokolowsky (GST): Lead Animator
Alex Kekesi (Global Science and Technology, Inc.): Animator
Waleed Abdalati (NASA/HQ): Scientist
Please give credit for this item to:
NASA/Goddard Space Flight Center Scientific Visualization Studio

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https://svs.gsfc.nasa.gov/3141

Mission:
Landsat

Data Used:
Landsat-7/ETM+
2001-03-17, 2001-05-04, 2001-05-20, 2001-07-07, 2002-03-04, 2002-03-29, 2002-04-28, 2002-05-23, 2002-06-17, 2002-07-01, 2002-09-03, 2003-03-23, 2003-05-19
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This item is part of this series:
WMS

Keywords:
DLESE >> Cryology
GCMD >> Earth Science >> Cryosphere >> Glaciers/Ice Sheets >> Glacier Motion/Ice Sheet Motion
GCMD >> Earth Science >> Hydrosphere >> Glaciers/Ice Sheets >> Glacier Motion/Ice Sheet Motion
GCMD >> Earth Science >> Spectral/Engineering >> Visible Wavelengths >> Visible Imagery
GCMD >> Location >> Greenland
SVS >> Hyperwall
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