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
Space techniques, including altimetry, enable to map Antarctica and its topography. With the new, more precise,...Jan. 2018: Antarctic megadunes seen in a Digital Elevation Model from altimetry
Ocean indicator : Global Mean Sea Level rise