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
Altimetry helped to improve the tide models, including tidal currents. A, Argonautica buoy path can be seen oscillating...Feb. 2017: Tidal currents make a buoy's path spiral
Ocean indicator : Global Mean Sea Level rise