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James Jacobson, a Data Analyst based out of Ames Research Center, explains his Digital Mapping System instrument to two teachers flying with Operation IceBridge, (top to bottom) Tom Koch Svennesen, of Greenland, and Peter Gross, of Denmark, on April 14, 2012. Credit: NASA/Jefferson Beck ============= IceBridge, a six-year NASA mission, is the largest airborne survey of Earth's polar ice ever flown. It will yield an unprecedented three-dimensional view of Arctic and Antarctic ice sheets, ice shelves and sea ice. These flights will provide a yearly, multi-instrument look at the behavior of the rapidly changing features of the Greenland and Antarctic ice. To read more about this mission go to: www.nasa.gov/mission_pages/icebridge/index.html NASA image use policy. NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission. Follow us on Twitter Like us on Facebook Find us on Instagram