About us

CERSAT is the Satellite Data Processing and Distribution Center of Ifremer, the French Research Institute for Exploitation of the Sea. It was created in 1991 as part of the ESA (European Space Agency) ground segment for the ERS-1 and ERS-2 Earth Observation satellites, performing off-line processing of their "low-bit rate" sensors. CERSAT has then evolved towards a multi-mission data centre for archiving, processing and validating data from multiple spaceborne sensors (such as altimeters, scatterometers, radiometers, SAR,...) with a focus on sea surface parameters and air-sea interactions.

What is CERSAT?

Bringing forward innovative research and product 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