The Western Mediterranean Sea is characterized by the presence of slope currents and (sub)mesoscale eddies that induce significant variations of the mean circulation. Theses interactions together with the strong air-sea exchanges that characterize this area modify the water column characteristics with significant dynamical implications.
Recent studies have shown that the main part of the ocean kinetic energy could be contained in (sub)mesoscale processes. However, their characteristics and associated interannual variability are, at present
not well known.
The aim of this research is to contribute to the characterization of the interannual variability in the Western Mediterranean Sea and more specifically to understand the variability and interactions between Atlantic and Mediterranean waters at different scales (from submesoscale to mean currents and considering the relevance of water masses on dynamical variability), to establish the impact of the (sub)mesoscale features on the large scale circulation, understand the links with decadal variability and climate, and provide the physical elements for better understanding of biogeochemical changes and ecosystem variability.