Five years ago, on December 7, 2001, Jason-1 was put on orbit. Since this date, the harvest of results is continue.

The Argonautica project provides teachers and pupils with educational resources about the ocean.

"Bi-frequency" altimeter enable to observe different phenomena, in the atmosphere or on solid earth surfaces. Over the ice caps, in particular, the radar wave interaction with the snow cover is very dependent on its frequency.

Sea circulation in the Mediterranean is nowaday a subject of discussion between oceanographers

Tehuantepec eddies region is one among biological hot spots. These eddies, well seen by altimetry, but also by other sensors, can carry with them biological material far from the shores.

altimetry data enhancement near the coasts is under study in several scientific teams around the world.

In winter, winds blow by pulses through a mountain pass across the Tehuantepec Isthmus (Mexico) to fan out over the Pacific, generating large mesoscale eddies.

Lake ice cover can be studied using simultaneously the power received by the radar altimeters after reflection on the surface and the brightness temperature from the radiometers onboard

A detailed analysis of altimetric waveforms often reveals the signatures of objects that emerge from the sea, such as beacons, lighthouses and small islands.

Biological and physical oceanography are combined to understand the impact of currents on turtle movements.

Heat transport is also made by eddies, and those induce variations in that transport, which in turn can cause climate variations

The utility of merging together the data from several altimetry satellites can be shown by comparing the altimetry merged datasets with other, independent kinds of data