In February 2010, NASA satellite ICESat-1 (Ice, Cloud and land Elevation Satellite) was decommissioned. Designed as a three-year mission, it successfully met its goal of returning science data for five years. Its replacement, ICESat-2, is expected to launch in 2015. To bridge the missing satellite data gap, NASA launched its Operation Ice Bridge airborne campaign to survey the most sensitive and critical areas of sea ice, ice sheets and glaciers in the Arctic and the Antarctic.
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