1 Pine Island Glacier Calving 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 breakoff, but the seaward moving glacial flow in the parts of the Pine Island Glacier upstream of the crack. Animation (512x512) Breakoff of iceberg B-21 from the Pine Island glacier shown in imagery acquired by MISR 1 0 2000-09-16 2002-05-25T23:59:59Z 2000-09-16 1 1 2000-09-16 2000-11-27T23:59:59Z http://svs.gsfc.nasa.gov/vis/a000000/a003100/a003127/frames/512x512/pine.0000.png -75.318278 -74.623181 -102.42663 -99.97659 2000-11-28 1 1 2000-11-28 2000-12-11T23:59:59Z http://svs.gsfc.nasa.gov/vis/a000000/a003100/a003127/frames/512x512/pine.0001.png -75.318278 -74.623181 -102.42663 -99.97659 2000-12-12 1 1 2000-12-12 2001-01-01 http://svs.gsfc.nasa.gov/vis/a000000/a003100/a003127/frames/512x512/pine.0002.png -75.318278 -74.623181 -102.42663 -99.97659 2001-01-01 1 1 2001-01-01 2001-01-21T23:59:59Z http://svs.gsfc.nasa.gov/vis/a000000/a003100/a003127/frames/512x512/pine.0003.png -75.318278 -74.623181 -102.42663 -99.97659 2001-01-22 1 1 2001-01-22 2001-02-24T23:59:59Z http://svs.gsfc.nasa.gov/vis/a000000/a003100/a003127/frames/512x512/pine.0004.png -75.318278 -74.623181 -102.42663 -99.97659 2001-02-25 1 1 2001-02-25 2001-09-07T23:59:59Z http://svs.gsfc.nasa.gov/vis/a000000/a003100/a003127/frames/512x512/pine.0005.png -75.318278 -74.623181 -102.42663 -99.97659 2001-09-08 1 1 2001-09-08 2001-10-09T23:59:59Z http://svs.gsfc.nasa.gov/vis/a000000/a003100/a003127/frames/512x512/pine.0006.png -75.318278 -74.623181 -102.42663 -99.97659 2001-10-10 1 1 2001-10-10 2001-10-25T23:59:59Z http://svs.gsfc.nasa.gov/vis/a000000/a003100/a003127/frames/512x512/pine.0007.png -75.318278 -74.623181 -102.42663 -99.97659 2001-10-26 1 1 2001-10-26 2001-11-03T23:59:59Z http://svs.gsfc.nasa.gov/vis/a000000/a003100/a003127/frames/512x512/pine.0008.png -75.318278 -74.623181 -102.42663 -99.97659 2001-11-04 1 1 2001-11-04 2001-11-08T23:59:59Z http://svs.gsfc.nasa.gov/vis/a000000/a003100/a003127/frames/512x512/pine.0009.png -75.318278 -74.623181 -102.42663 -99.97659 2001-11-09 1 1 2001-11-09 2001-11-10T23:59:59Z http://svs.gsfc.nasa.gov/vis/a000000/a003100/a003127/frames/512x512/pine.0010.png -75.318278 -74.623181 -102.42663 -99.97659 2001-11-11 1 1 2001-11-11 2001-11-11T23:59:59Z http://svs.gsfc.nasa.gov/vis/a000000/a003100/a003127/frames/512x512/pine.0011.png -75.318278 -74.623181 -102.42663 -99.97659 2001-11-12 1 1 2001-11-12 2002-05-25T23:59:59Z http://svs.gsfc.nasa.gov/vis/a000000/a003100/a003127/frames/512x512/pine.0012.png -75.318278 -74.623181 -102.42663 -99.97659