AVISO stands for "Archiving, Validation and Interpretation of Satellite Oceanographic data".
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.
Altimetry is a technique for measuring height. Satellite altimetry measures the time taken by a radar pulse to travel from the satellite antenna to the surface and back to the satellite receiver. Combined with precise satellite location data, altimetry measurements yield sea-surface heights.
In 2014, the CTOH website is merged with the AVISO website to allow an operational product dissemination and a better visibility of the observation service within the altimetric community.
AVISO is the showcase of Cnes activities in altimetry. Indeed, the altimetric products processed by the SALP service from Cnes (Service d'Altimétrie et de Localisation Précise) are distributed via AVISO portal since 1998. In recent years, AVISO has become a reference in international oceanographic and altimetric communities. In 2014 AVISO opens to wider applications than the ocean themes. Thus becoming AVISO +, the portal opens to hydrology / coastal / ice and merges with the CTOH website to provide users with more operational and demonstration products, and expertise in an intuitive and modern web site.