Thèse de doctorat en Océanographie physique
Soutenue en 2005
à Toulouse 3 .
Pas de résumé disponible.
Oceanic mesoscale variability : comparison altimeter/model
The recent progress realized in the ocean modelisation, associated with satellite altimetric observations, allows us to better characterize the oceanic mesoscale (scale that corresponds to very energetic ocean phenomena). A compared study of two very high-resolution model outputs in the North Atlantic ocean (POP and PAM) with data issue from the merging of two altimeters observations (T/P and ERS) has been made. At first, we focus on the analysis of the mean Eddy Kinetic Energy (EKE). We then describe the Sea Level Anomaly space and times scales and propagation velocities at a resolution never achieved before. Finally, a study of the seasonal and interannual variability of the EKE is carried out. This study is extended to the global ocean with the T/P-ERS data only. The short-coming global ocean model (POG) will help us to confirm our results.