Ross Ice Shelf - Credit: NASA
Pine Island and Thwaites Glacier - Credit: NASA
Scientists using satellite data have now created the most detailed maps ever produced of the vast snow-covered Antarctic continent. The maps reveal unprecedented views of surface features that provide clues to how and why the continent’s massive ice sheets and glaciers are changing.
Researchers can now decipher the intricate history of ice movements in the just-released "Mosaic of Antarctica," which uses images from the Moderate Resolution Imaging Spectrometer onboard NASA’s Terra and Aqua satellites. The map is the result of a partnership between NASA’s Goddard Space Flight Center, Greenbelt, Md.; the University of Colorado’s National Snow and Ice Data Center (NSIDC), Boulder; and the University of New Hampshire, Durham.
A second map to be released early next year will provide the most complete and accurate topographical survey of the continent ever undertaken, with more than 65 million points surveyed from space by the Geoscience Laser Altimeter System orbiting on NASA’s Ice, Cloud and Land Elevation Satellite (ICESat). This "digital elevation model" produced at Goddard will be distributed by NSIDC in a format compatible with the Mosaic map.
Rob Gutro | EurekAlert!
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