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Tracking coherent structures in a regional ocean model with wavelet analysis: Application to Cape Basin eddies - art. no. C05043 ArchiMer
Doglioli, Andrea; Blanke, Bruno; Speich, Sabrina; Lapeyre, Guillaume.
[1] This study is mainly aimed at proposing objective tools for the identification and tracking of three-dimensional eddy structures. It is conducted with a high-resolution numerical model of the ocean region around South Africa, and emphasis is put on Cape Basin anticyclones and cyclones thought to be actively implicated in the Indian-Atlantic interocean exchange. We settle on wavelet analysis for the decomposition and processing of successive maps of relative vorticity for a simulation run with 1/10 degrees resolution. The identification of three- dimensional coherent structures comes with the calculation of eddy trajectories and the time evolution of eddy properties. Instantaneous mass transport and momentum of eddies are calculated from the knowledge...
Tipo: Text Palavras-chave: Southeast Atlantic ocean; Agulhas current system; Wavelet analysis; Regional modeling; Oceanic eddies.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/publication-2684.pdf
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