LEGOS (Laboratoire d’Études en Géophysique et Océanographie spatiales)
LEGOS - UMR 5566 | CNES - CNRS - IRD - UPS Toulouse III
14, avenue Edouard Belin - 31400 Toulouse
Tél. : 33 (0) 561 332 929 - Fax : 33 (0) 561 xxx xxx
Director : Yves Morel
This interdisciplinary research unit studies our environment through focusing on deep-sea and coastal ocean physics, marine geochemistry and biogeochemistry, space hydrology and the dynamics of polar caps. Observation mainly uses space-based remote sensing and five observation services or networks. LEGOS is involved in a number of satellite missions (mostly altimetric), from the beginning (concept, algorithms) to the end-result stage (calibration, validation, data enhancement).
The staff comprises 40 researchers, 20 ITA (Engineers/Technicians/Administrative staff), 30 PhD students and postdoctoral fellows, as well as interns and contract employees.
Geophysics, Oceanography and Space Hydrology
Using multi-sensor space-based observation to study the Earth system, with a focus on the emergence of space hydrology and applications to continental areas.
Physical Dynamics/Marine Biogeochemistry
Regional dynamics of sea plankton in response to climate change from season- to decade- timescale (modelling, satellite and in-situ observation analysis, sensor development for the biogeochemical monitoring of oceans).
Quantifying the processes governing matter transfer in oceans (role of continental margins, biogenic flows and ocean transportation).
Satellite Observation of the Cryosphere
Using multi-sensor satellite observation to study the dynamics of continental ice sheets and their interaction with the atmosphere and oceans.
Numerical modelling of deep-sea and coastal oceans (analysis, prevision, asssimilation of satellite-based and in-situ data). In the field of research and development, CMO takes part in the study of ocean circulation led by LEGOS.
Dynamics of regional ocean circulation, upwelling system, low-/high-frequency coupling, ocean/atmosphere exchanges, and coast/open-ocean coupling.
Open ocean and climate variability
Low-frequency ocean variability, dynamics of mode waters, dynamics of ENSO, dynamics of intertropical and extratropical exchanges.
CTOH (Centre de Topographie des Océans et de l’Hydrosphère)
Satellite-borne altimetry of both oceans and continents, with an increasing focus on coastal areas, continental hydrology and the cryosphere.
DORIS data processing centre
A collaboration with IERS (International Earth Reference System) for top-precision positioning in orbitography.
A network for the observation of sea-level in the Antarctic and Subantarctic regions, with the support of IPEV (Institut polaire français – Paul-Émile-Victor).
An endeavor to monitor sea-surface salinity using merchant ships, comprising 5 observation networks across the Pacific, Atlantic, Indian and Southern oceans.
A network of moored buoys across the Equatorial Atlantic for the monitoring of meteorological and oceanographic variables between the surface and 500m-deep sea-bottom.