Wavelets Analysis for Time-tracking Eddies in Regional modelS
2004-2006 |
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PROJECT GOALS |
* identifying mesoscale eddies with an objective method, * time-tracking these eddies and * evaluating their properties and the water mass they transfer. |
Starting from the Wavelab library and ROMS tools we developed a set of MATLAB tools to analyze off-line the modeled circulation in the Cape Basin.
In order to identify coherent eddy structures, horizontal slices of the vorticity field at successive time steps are decomposed with a wavelet technique, following a classical approach in image processing.
With the ARIANE toolkit we study eddy displacements and we investigate the water masses involved in eddy formation. |
More in scientific works and ... - Doglioli, A. M., Speich, S., Blanke, B., Lapeyre, G., Tracking Mesoscale Eddies within a Regional Model of the Cape Basin. Ocean Sciences 2006 meeting. Honolulu, Hawaii. abstract slides+notes - Blanke, B., Doglioli, A. M., Speich, S., Lapeyre, G., Eddy tracking in a regional model of the Cape Basin, Workshop on Indices of Meso-scale Structures. Nantes, France. abstract - Doglioli, A. M., Blanke, B., Speich, S., Lapeyre, G. (2005), Tracking eddies in a regional model of the Cape Basin off South Africa. J. Geophys. Res., Submitted. see preprint - Doglioli et al. (2005), Suivi de tourbillons dans un modèle régional du Bassin du Cap (Afrique australe), Atelier InterUp, Brest, 14-16 Novembre. see slides PPT with movies 31.9Mb, PDF |
WASSCO Waters - Application de Suivi de Structures COhérentes 3D dans des modèles de circulation océanique haute résolution MERCATOR et comparaison avec des données altimétriques) PI: N. Grima (LPO, Brest) [website] |