Multi-mission cross-over
https://serac-crete.eu/images/gallery/Sentinel-3_over_land_and_ocean_1400x400.jpg

The performance of Sentinel-3 will be validated against other altimeter missions (i.e., Jason-3/Jason-CS reference mission, Cryosat-2, HY-2B and its follow on, etc.).This is to be carried out on land at the CDN1 Cal/Val site but also at open-sea at cross-over locations.

Funded by the EU and ESA