About us

The CERSAT (Centre ERS d'Archivage et de Traitement) / Laboratory of Oceanography From Space is part of IFREMER (French Research Institute for Exploitation of the Sea). It was created in 1991 as a node of the ESA (European Space Agency) ground segment for the ERS-1 and ERS-2 Earth observation satellites, performing off-line processing of the ERS-1 and ERS-2 "low-bit rate" sensors. The CERSAT has then evolved towards a multi-mission data centre for archiving, processing and validating data from spaceborne sensors (such as altimeters, scatterometers, radiometers, SAR,...) with a focus on sea surface parameters and air-sa interactions.

What is CERSAT?

Bring forward innovative research and development focusing on the state of the ocean.


ODATIS Ocean Cluster is the entry point to access all the French Ocean observation data.


The LOPS works for observing and improving our understanding of the past and present state of the ocean.


Scientific Information Systems for the Sea