About Envisat mission

The European Space Agency (ESA) launched Envisat, an advanced polar-orbiting Earth observation satellite, on Mars 1, 2002, to provide measurements of the atmosphere, ocean, land and ice. Envisat carried an ambitious and innovative payload to ensure continuity of data measurements from ESA's ERS satellites. Envisat was the largest Earth observation spacecraft ever built, carrying 10 instruments and weighing eight tons, making it the largest civilian Earth observation mission ever launched.
Advanced imaging radar, radar altimeter and temperature radiometer instruments ensured the continuity of ESA’s ERS program. New instruments were added, including a medium-resolution spectrometer sensitive to both land features and ocean color. Envisat also carried two atmospheric sensors to monitor trace gases.

The Envisat mission ended on April 8, 2012, after an unexpected loss of contact with the satellite.
For more information on the Envisat mission, you can visit ESA website.

Disclaimer

To access Envisat data, please use your AVISO credentials. If you don't have a "MY AVISO" account, please register [here]. AVISO credentials (login = email address and password) will be sent by email.