Detail View: NASA Scientific Visualization Studio Collection: Updated Jakobshavn Glacier Calving Front Retreat from 2001 through 2006

Title: 
Updated Jakobshavn Glacier Calving Front Retreat from 2001 through 2006
Instrument: 
Aqua/AMSR-E
Description: 
This is another view of changes in elevation over the Greenland ice sheet between 2003 and 2006,
Abstract: 
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, ocean sea levels raise. 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 animation is an update of and extension to animation ID #3374. In this version, a pause is added on the approach to the Jakobshavn glacier in order to highlight the meltwater lakes visible on the Greenland ice sheet. In addition, semi-transparent overlays and text indicate different regions of the glacier before the calving lines are shown. After the calving front retreat, an additional segment shows a zoom to a global view. During the pull out, historic calving front locations are shown followed by a color overlay showing regions of increase and decrease in the Greenland ice sheet.
Completed: 
2007-07-20
Credit: 
*Please give credit for this visualization to* NASA/Goddard Space Flight Center Scientific Visualization Studio The Blue Marble data is courtesy of Reto Stockli (NASA/GSFC).
Studio: 
SVS
Animator: 
Cindy Starr (Lead)
Scientist: 
Anker Weidick (Geological Survey of Denmark and Greenland)
Data Collected: 
MODIS imagery of Greenland (06/25/2003), Landsat Imagery (07/07/2001, 09/03/2002, 08/23/2003, 10/03/2004), ASTER Imagery(07/02/2005, 08/08/2006), MODIS Blue Marble Landcover, ICESat topography 2003 - 2006
Keywords: 
Cryology
facet_where: 
Colorado
facet_when: 
06-25-2003
facet_what: 
ASTER
facet_when_year: 
1850
Animation Number: 
3434
UID: 
SPD-SCIVS-http://svs.gsfc.nasa.gov/vis/a000000/a003400/a003434/Jakobshavn_30_NG2reg_09_still4.8290-IMAGE
original url: 
http://svs.gsfc.nasa.gov/vis/a000000/a003400/a003434/