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  1. DORIS the space surveyor serving the ITRF

    Publishing date:

    January 13, 2016

    The DORIS system (Doppler Orbitography and Radiopositioning Integrated by Satellite), conceived and developed by CNES, France’s national mapping, survey and forestry agency IGN and the French space geodesy research centre GRGS, has just turned 25. From the early 1990s, DORIS has driven effective exploitation of satellite altimetry data by supplying orbital parameters with centimetre accuracy. As a key element of geodetic and geophysical research, DORIS provides data for the International Terrestrial Reference Frame (ITRF), of which a new version—ITRF2014—is about to be released. And with new instruments soon set to launch on the Jason-3 and Sentinel-3 satellites, the DORIS constellation still has many more years of service in store.

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  2. Cryosat-2 ready to embark on ice mission

    Publishing date:

    February 2, 2010

    ESA’s Cryosat-2 satellite is set to embark on its mission above Earth’s poles on 25 February. With its altimeter, aided by the DORIS instrument, it will monitor variations in ice elevation and thickness with millimetre accuracy.

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  3. Mission

    Publishing date:

    February 7, 2017

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  4. Applications

    Publishing date:

    February 7, 2017

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  5. System

    Publishing date:

    February 7, 2017

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  6. AltiKa- Call for proposals until 15 February

    Publishing date:

    January 25, 2010

    On 15 December 2009, France and India issued a call for proposals from the international scientific community to exploit data from AltiKa, a high-resolution altimeter dedicated to measuring oceans, continental waters and ice.

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