Jakobshavn Glacier Flow in the year 2000 and Calving Front Retreat from 2001 to 2006

  • Released Saturday, September 30, 2006
  • Updated Wednesday, January 14, 2015 at 10:12AM
  • ID: 3374

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 2006, the glacier has begun to recede again, this time almost doubling in speed. The finding is important for many reasons. 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 the glacier's flow in 2000, along with changes in the glacier's calving front between 2001 and 2006.
This still image shows the calving front on 07/02/2005. Lines also indicate the calving front in 1942, and 2001 through 2005.

This still image shows the calving front on 07/02/2005. Lines also indicate the calving front in 1942, and 2001 through 2005.

This still image shows the calving front on 08/08/2006.  Lines also indicate the calving front in 1942, and 2001 through 2006.

This still image shows the calving front on 08/08/2006. Lines also indicate the calving front in 1942, and 2001 through 2006.



Credits

Please give credit for this item to:
NASA/Goddard Space Flight Center Scientific Visualization Studio The Blue Marble data is courtesy of Reto Stockli (NASA/GSFC). Jeffrey E. Schmaltz (NASA/SSAI)


Missions

This visualization is related to the following missions:

Series

This visualization can be found in the following series:

Datasets used in this visualization

Terra (Collected with the MODIS sensor)
Landsat-7 Band Combination 3, 2, 1 (Collected with the ETM+ sensor)
Terra Band Combination 3, 2, 1 (Collected with the ASTER sensor)
Terra and Aqua Blue Marble Land Cover (Collected with the MODIS sensor)

Credit: The Blue Marble data is courtesy of Reto Stockli (NASA/GSFC).

See more visualizations using this data set
Landsat Calving Front Line (Collected with the TM sensor)
Analysis07/07/2001, 09/03/2002, 08/23/2003, 10/03/2004

Calving front lines derived from Landsat imagery.

See more visualizations using this data set
Terra Calving Front Lines (Collected with the ASTER sensor)
Analysis07/02/2005, 08/08/2006

Calving front lines derived from Terra/ASTER imagery.

See more visualizations using this data set

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.


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