Iceberg 6 times the size of Manhattan breaks off of Antarctica
Source: USA Today By Associated Press
WASHINGTON (AP) — Scientists are watching an iceberg bigger than the island of Guam as it slowly moves away from an Antarctic glacier….(read more)
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Image of Iceberg B-31 in Antarctica’?s Pine Island Glacier made on Nov. 13, 2013 from the NASA Earth Observatory, using Landsat 8 data from the USGS Earth Explorer. Between November 9?11, 2013, a large iceberg finally separated from the calving front of Antarctica?s Pine Island Glacier. Scientists first detected a rift in the glacier in October 2011 during flights for NASA?s Operation IceBridge. By July 2013, infrared and radar images indicated that the crack had cut completely across the ice shelf to the southwestern edge. New images now show that Iceberg B-31 is finally moving away from the coast, with open water between the iceberg and the edge of Pine Island Glacier. The Operational Land Imager on the Landsat 8 satellite acquired natural-color images of the iceberg in Pine Island Bay on November 13 and October 28, 2013. Clouds and fog make the November 13 image a bit hazy, but the open-water gap between the iceberg and the ice shelf is still apparent. Click here for a wider view of the iceberg from November 10, just after the separation. Named B-31 by the U.S. National Ice Center, the new iceberg is estimated to be 35 kilometers by 20 kilometers (21 by 12 miles), roughly the size of Singapore. A team of scientists from Sheffield and Southampton universities will track the 700 square-kilometer chunk of ice and try to predict its path using satellite data. NASA Earth Observatory images by Holli Riebeek, using Landsat 8 data from the USGS Earth Explorer. Caption by Michael Carlowicz [Via MerlinFTP Drop]
(Photo: Holli Riebeek, NASA Earth Observatory)