ERS and Envisat

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.

ERS-2 and Envisat satellites have been paired up for tandem campaigns, the last of which was in 2010.