The structure of nearshore currents driven by changes in meteo-marine forcings

Abstract : This work aims to better understand the physical processes governing the wave propagation in a vertically sheared current and the resulting nearshore circulation patterns. It is based on a high resolution hydro-morphodynamic field campaign, ROUSTY2014, collecting a comprehensive hydro-morphodynamical dataset during a full winter season. The overall analysis highlights three main circulation patterns, largely controled by the bathymetric features and by co-working or competing wind and waves forcings. Regarding the vertical structuration of the circulation, most of field observations shown seaward directed circulation with onshore component close to the air/sea surface whose intensity varies according to incoming wave conditions. Forth, vertical shear increase when breaking happen close to sensor location and orientation of mean circulation depend on wind direction.
Type de document :
Communication dans un congrès
35th International Conference on Coastal Engineering, Nov 2016, Antalya, Turkey. 2016, <http://icce2016.com>
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https://hal.archives-ouvertes.fr/hal-01426582
Contributeur : Samuel Meulé <>
Soumis le : mercredi 4 janvier 2017 - 16:50:56
Dernière modification le : jeudi 27 avril 2017 - 11:38:36

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  • HAL Id : hal-01426582, version 1

Citation

Lise Petitjean, Damien Sous, Vincent Rey, Frederic Bouchette, Francois Sabatier, et al.. The structure of nearshore currents driven by changes in meteo-marine forcings. 35th International Conference on Coastal Engineering, Nov 2016, Antalya, Turkey. 2016, <http://icce2016.com>. <hal-01426582>

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