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
Topex/Poseidon was launched 25 years ago: the starting point of a success story, still ongoing.Sep. 2017: 25 years, and many more to come
Ocean indicator : Global Mean Sea Level rise