In the first comprehensive satellite study of its kind, a University of Colorado Boulder-led team used NASA data to calculate how much Earth's melting land ice is adding to global sea level rise. This animation shows the average yearly change in mass, as measured by the NASA/German Aerospace Center Gravity Recovery And Climate Experiment (GRACE) satellite mission. The animation shows ice loss over Greenland and Antarctica, as measured in centimeters of water from 2003 to 2010. These two landmasses are covered with the largest land-based ice sheets in the world, and are the key sources of scientists' concern about future sea-level rise. Regions with large ice loss rates are denoted with the blue and purple colors. There are enormous ice loss rates over substantial regions of both ice sheets. A colorbar shows the range of values displayed. Read more about this study, published Feb. 8, 2012 in Nature, here: http://www.nasa.gov/topics/earth/features/grace20120208.html See animations of a global glacier inventory and ice loss around the world here: http://svs.gsfc.nasa.gov/vis/a000000/a003900/a003906/ See an animation of ice loss in the Himalayas here: http://svs.gsfc.nasa.gov/vis/a000000/a003900/a003911/
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