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Pine Island Glacier Calving (WMS)

The Pine Island Glacier is the largest discharger of ice in Antarctica and the continent's fastest moving glacier. Even so, when a large crack formed across the glacier in mid 2000, it was surprising how fast the crack expanded, 15 meters per day, and how soon the resulting iceberg broke off, mid-November, 2001. This iceberg, called B-21, is 42 kilometers by 17 kilometers and contains seven years of glacier outflow released to the sea in a single event. This series of images from the MISR instrument on the Terra satellite not only shows the crack expanding and the iceberg breaking off, but the seaward moving glacial flow in the parts of the Pine Island Glacier upstream of the crack.
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Breakoff of iceberg B-21 from the Pine Island glacier shown in imagery acquired by MISR    Breakoff of iceberg B-21 from the Pine Island glacier shown in imagery acquired by MISR
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Animation Number:3127
Animators:Lori Perkins (NASA/GSFC) (Lead)
 Horace Mitchell (NASA/GSFC)
Scientists:Bob Bindschadler (NASA/GSFC)
 Dave Diner (NASA/JPL CalTech)
Platform/Sensor/Data Set:Terra/MISR (2000/09/16, 2000/11/28, 2000/12/12, 2001/01/01, 2001/01/22, 2001/02/25, 2002/090/08, /2001/10/10, 2001/10/26, 2001/11/04, 2001/11/09, 2001/11/11, 2001/11/12)
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NASA/Goddard Space Flight Center
Scientific Visualization Studio
DLESE >> Cryology
GCMD >> Earth Science >> Cryosphere >> Glaciers/Ice Sheets >> Icebergs
GCMD >> Earth Science >> Cryosphere >> Sea Ice >> Icebergs
GCMD >> Earth Science >> Cryosphere >> Sea Ice >> Sea Ice Motion
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Many of our multimedia items use the GCMD keywords. These 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 logo - the U.S. Government's official Web portal. + Privacy Policy and Important Notices
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