On December 1, 2013, NASA’s Terra satellite flew over the West Antarctic Ice Sheet, allowing the Moderate Resolution Imaging Spectroradiometer (MODIS) aboard to capture this true-color image of the free-floating Iceberg B-31. Since November 9-11, when the large iceberg finally fully separated from the Pine Island Glacier calving front, Iceberg B-31 has been drifting across Pine Island Bay.
In this image, chunks of melting sea ice sit in the Bay in the northeast, surrounded by black-appearing ocean water. Pine Island Glacier can be seen as a streaked area in the southeast corner of the image. A large expanse of water has opened between the glacier and Iceberg B-31, which appears to be nearly touching some of the melting sea ice.
The MODIS instrument has been following the iceberg since the calving event. The Image of the Day has featured Iceberg B-31 on December 6, December 1, November 25, and November 19. To view this image series, go to the MODIS Image Gallery at http://modis.gsfc.nasa.gov/gallery/showall.php.