Pine Island Iceberg Breaking Loose
November 19, 2013
Between November 9–11, 2013, a large iceberg separated from the calving front of Antarctica’s Pine Island Glacier. Scientists first detected a rift in the glacier in October 2011. By July 2013, infrared and radar images showed that the crack had cut completely across the ice shelf. New satellite images now show that Iceberg B-31 is finally moving away from the coast. The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite acquired these natural color images of Pine Island Glacier on November 10 (top) and November 3, 2013. Dubbed 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. Credit: NASA image by Adam Voiland, Earth Observatory, and Jeff Schmaltz, LANCE/EOSDIS Rapid Response. Caption by Mike Carlowicz.
Topics: Environment, Glaciology, Water ice, Geography of Antarctica, Technology Internet, Icebergs, Filchner-Ronne Ice Shelf, Petermann glacier, Ice shelf, West Antarctica, Moderate-Resolution Imaging Spectroradiometer, Physical oceanography, Glacier