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.
- Swot reveals swells that connect ocean storms and mysterious seismic activity (2026-04-20)
A study published in the journal Nature Communications identifies a causal relationship between the occurrence of large storms in the Southern Ocean and, a few days later...
- New: High Resolution Coastal Sargassum Floating Algae Detection (2026-04-13)
The product "High Resolution Coastal Sargassum Floating Algae Detection with VENUS mission in Carribean Arc" provides Alternative Floating Algae Index (AFAI) coastal maps...
- Interaction of internal solitary waves and eddies observed for the first time with Swot (2026-04-08)
For the first time, Swot enabled to observe Internal solitary waves signature in sea surface height. This allowed researchers to study the interactions of internal solita...



