- Just delivered to EADS Astrium GmbH in Immenstaad, Germany, is the SIRAL-2 SAR interferometer radar altimeter by Thales Alenia Space. This instrument will be aboard the CryoSat-2 mission, for which EADS Astrium is the prime contractor. SIRAL-2 is the main scientific instrument of the CryoSat-2 satellite, an ESA (European Space Agency) program. The instrument will determine the rate of change in the thickness of continental and at-sea ice fields, with unprecedented accuracy. This program has a crucial role in the knowledge of climate evolution. Following the very successful Poseidon oceanographic altimeter, SIRAL-2 signs a new generation of spaceborne alimeters. CryoSat-2 is expected to be launched in March 2009 and will be operational for 3.5 years, possibly as much as 5 years—Cannes, France


