Welcome to AVISO +

The reference portal in altimetry merging the historical AVISO website from Cnes and the CTOH website. Here, you will find data, articles, news and tools to help you discover or improve your skills in the altimetry domain through four key themes: ocean, coast, hydrology and ice. 


Products guide
Image of the Month
The fractures in sea ice (or "leads") are important for the estimate of ice thickness from remote sensing. Detecting...Apr. 2018: Sea ice leads by two sentinels
Ocean indicator : Global Mean Sea Level rise