CryoSat to investigate Earth’s ice coverFebruary 16th, 2010 - 12:44 pm ICT by ANI
Paris, Feb 16 (ANI): Reports indicate that the European Space Agency (ESA) is about to launch CryoSat on February 25, which would be the most sophisticated satellite ever to investigate the Earth’s ice fields and map ice thickness over water and land.
ESA’s ice mission satellite CryoSat will be placed into orbit 700 km above Earth by a Russian Dnepr rocket to be launched from the Baikonur Cosmodrome in Kazakhstan.
CryoSat will be the third of ESA’s Earth Explorer satellites in orbit, following on from GOCE (launched in March 2009) and SMOS (launched in November 2009).
It was originally due to be the first in the Earth Explorer series, but the first satellite was lost as a result of a launcher failure in October 2005.
The 700 kg CryoSat spacecraft carries the first all-weather microwave radar altimeter.
The instrument has been optimized for determining changes in the thickness of both floating sea ice, which can be up to several metres, and polar land ice sheets, which in Antarctica can be up to five kilometres.
The mission will deliver data on the rate of change of the ice thickness accurate to within one centimetre.
Recent record-lows in the extent of summer Arctic sea-ice cover demonstrate that significant changes are occurring in the polar regions. Ice cover has been mapped from space for many years by satellites such as Envisat.
But to understand more about how climate change is affecting these sensitive regions, there is also an urgent need to determine how ice thickness is changing.
Data from CryoSat will lead to a better understanding of the dynamics of ice mass, provide the scientific community with valuable information on this variable and contribute to climate change studies. (ANI)
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