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
When sea surface height is decreasing in Indonesia during an El Niño, the coral can be out of water longer than usual,...Apr. 2017: How El Niño and related sea level fall impacted indonesian corals
Ocean indicator : Global Mean Sea Level rise