- CDD - 24 months starting 01 December 2016; salary based on the CNRS standards depending on academic level and experience.
- Location : Laboratoire des Etudes en Océanographie et Géophysique Spatiale (LEGOS), Toulouse.
The future satellite mission SWOT to be launched by NASA/CNES in 2021 will use altimeter-interferometry techniques to improve the observation of fine-scale ocean dynamics. In preparation for this new measurement technique, the proposed CDD will work on the analysis and interpretation of existing nadir altimeters including their alongtrack signal and errors. The analysis will be based on three different types of satellite altimetric technology: conventional Ku-band from Jason-3, Ka-band from Saral, and the SAR mode from Sentinel-3 and Cryosat-2. A major point concerns our present capability to observe fine-scale ocean dynamics across open ocean fronts, coastal currents and close to sea-ice. For this, comparisons will be performed between the altimetric data and other satellite and in-situ data, using different statistical and dynamical techniques. An additional task will be to apply and analyse the SWOT ocean scientific simulator in different dynamical regimes, and with different ocean models. The CDD will be based at the LEGOS CNRS laboratory in Toulouse, within the altimetric observation service, the CTOH. The CDD will be work in close interaction with the CNES/CLS groups preparing the future SWOT mission, as well as with the scientific research groups working in different ocean dynamical regimes.
- Statistical and dynamical analyses of alongtrack nadir altimeter data
- Development of code for the comparisons between altimetry or future SWOT mission simulations with independent observations, and ocean high-resolution numerical models
- Exploitation and analyse of the results.
- Minimum level of Master of Science / Engineering school “grand école”, or equivalent
- Working experience in the domain of satellite oceanography is a strong advantage or in Earth science observations. Strong background in physics and applied mathematics is desired.
- Strong experience in programming (python, Matlab).
- Aptitude for team work.
- Good communication skills in both French and English (written and oral).
This work will be carried out at the Laboratoire des Etudes en Océanographie et Géophysique Spatiale (LEGOS), in Toulouse, within the altimetric observation service Centre des Topographie des Océans et de l’Hydrosphère (CTOH), and in the context of the preparation of the future mission SWOT (http://swot.jpl.nasa.gov). The LEGOS laboratoire and the CTOH conduct fundamental and applied research largely based on satellite observations over the oceans, the terrestrial water surfaces, and cryosphére. (http://ctoh.legos.obs-mip.fr)