Modelado numérico del ecosistema de los golfos norpatagónicos
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This dissertation analyses the oceanic circulation of the Norpatagonian Gulfs, a region of the Argentinean Sea that has long been recognized for the high productivity and biodiversity of the ecosystem. The study aims towards a systematic exploration of the physical processes that control the circulation using a high resolution three dimensional numerical model. To facilitate the dynamical understanding of the results our experimental strategy was to start with a constant density (barotropic) model forced by tides and winds, and to progress to a more complex case including density stratification generated by surface fluxes of heat and humidity. The main result that stems from the numerical experiments is that tidal forcing significantly contributes to the overall subtidal residual circulation both in the homogenous and stratified models. The barotropic model shows that the nonlinear interaction between the oscilating tide and bottom topography leads to the formation of several robust r.....