In situ and satellite altimetry measurements to improve the knowledge of currents in the Patagonian Shelf and Slope

– Martin Saraceno, professeur à l’Université de Buenos Aires –

Résumé :

In this presentation I will summarize results obtained from in situ and satellite data to advance the knowledge of the ocean circulation and its impact on some species in the Southwestern Atlantic (SWA). In situ data have been obtained from moorings, drifters, research vessels and elephant seals. Both the continental shelf and the open ocean are affected by large-scale oceanic and atmospheric process. The continental shelf is largely affected by high-frequency process, tides and along-coast winds being the two most important factors. In the open ocean we show that the large mesoscale activity that is produced by the confluence of the Brazil and Malvinas currents can explain up to 52% of the interannual variability of the Argentine shortfin stock of squids. On going projects will be presented.

Martin Saraceno is professor in the Department of Atmospheric and Oceanographic Sciences at the University of Buenos Aires, Argentina. He is visiting professor of TESS (Toulouse Graduate School of Earth and Space Science) in 2024-2025 at LEGOS.