In September 2017, a brand new iceberg calved from Pine Island Glacier—one of the principle shops the place the West Antarctic Ice Sheet flows into the ocean. Simply weeks later, the berg named B-44 shattered into greater than 20 fragments. On December 15, 2017, the Landsat 8 Earth-orbitng satellite tv for pc took this picture of the damaged berg. An space of comparatively heat water, often called a polyna, has stored the water ice free between the iceberg chunks and the glacier entrance. The polynya’s heat water may have triggered the speedy breakup of B-44.
This picture was acquired close to midnight native time. Based mostly on parameters together with the azimuth of the Solar and its elevation above the horizon, in addition to the size of the shadows, it’s estimated that the iceberg rises about 49 meters above the water line. That may put the overall thickness of the berg—above and under the water floor—at about 315 meters.
Image Credit score: NASA