The satellite carries a sophisticated radar altimeter that can measure the thickness of sea ice down to centimetres and also monitor changes in ice sheets, particularly around the edges where icebergs are calved from the vast ice sheets that cover Greenland and Antarctica.
This milestone is not only achievement for the CryoSat mission, but also for ESA's programme for Earth observation. After the GOCE gravity mission and the SMOS water mission, CryoSat is the third Earth Explorer mission to begin operational life in orbit.
Looking to the future, a host of missions, including the Swarm magnetic field Earth Explorer and the family of Sentinel satellites for the Global Monitoring for Environment and Security programme are in various stages of development and will be launched over the next few years.
These satellite missions will significantly contribute to advancing our understanding of how Earth works as a system and provide much-needed information to assess how climate change is affecting our environment.
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