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Instantaneous net fluxAt the 2005 American Geophysical Union in San Francisco, scientists took a tour of the Earth's frozen assets, or cryosphere, using NASA satellite images. This one shows a swath of instantaneous net flux measured by NASA's CERES (Clouds and the Earth's Radiant Energy System) experiment on June 20, 2003. Regions in daylight are warming (orange/red) while regions in darkness are cooling (blue).
Flow of glacial ice
This image, which shows the flow of glacial ice toward the ocean, was derived from measurements from the European Space Agency's Earth Resource Satellite. The flow rate of the Jakobshavn Glacier in Greenland more than doubled from 1997 to 2003.
The sea ice around Antarctica on Sept. 27, 2004, as measured by QuikSCAT.