ESA began its era of scientific Earth observation missions with the launch of ERS-1 in 1991, followed by ERS-2 in 1995 and Envisat in 2002. These ‘workhorses’ in space have been providing data to the scientific community to improve our understanding of the Earth system and to help predict future climate.
Adding to their unique information from previous tandem missions, ESA’s ERS-2 and Envisat satellites were paired up for a final tandem campaign in 2010. Data from this final duet are being used to generate 3D models of glaciers and low-lying coastal areas.