Internal tides fate and energy budget off the Amazonian shelf
Event: 2019 Ocean Surface Topography Science Team Meeting
Session: Tides, internal tides and high-frequency processes
Presentation type: Type Oral
Contribution: PDF file
In the persepective of the forthcoming SWOT mission, the NEMO hydrodynamical model performances in reproducing realistic tidal dynamics, barotropic and baroclinic are being investigated and hopefully improved in a CMEMS financed project. In parallel with global ocean experiments, we conduct more detailed diagnostics using regional experiments. In our presentation, we analyze the internal tides generation, propagation and dissipation and examine the associated energy budget ff the Amazonian shelf. Analysis is based on regional NEMO high resolution simulations (1/36) and the vertical modes decomposition. We will address the coherent versus incoherent internal tides issue, and the limitations of the harmonic approach in characterizing the full internal tides dynamics. Comparisons will be made with simulations produced from the unstructured, non-diffusive T-UGOm model.