ROBINET, Arthur; CASTELLE, Bruno; MARIEU, Vincent; IDIER, Déborah; LE COZANNET, Gonéri; CHARLES, Elodie; DÉQUÉ, Michel; SPLINTER, Kristen D.

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Licence d’utilisation du document

ROBINET, Arthur
Environnements et Paléoenvironnements OCéaniques [EPOC]
Bureau de Recherches Géologiques et Minières [BRGM]

CASTELLE, Bruno

Environnements et Paléoenvironnements OCéaniques [EPOC]

MARIEU, Vincent
Environnements et Paléoenvironnements OCéaniques [EPOC]

Langue

Communication dans un congrès

Ce document a été publié dans

Oral presentation at International Coastal Symposium 2016, International Coastal Symposium 2016, 2016-03-06, Sydney.

Résumé en anglais

On coasts dominated by cross-shore sediment-transport, incident wave-energy primarily controls temporal shoreline variability (Splinter et al., 2014). Truc Vert beach (SW France) is a high-energy meso-macrotidal multiple-barred beach where monthly to bimonthly surveys have been performed since May 1998. Surveys with an alongshore coverage larger than 350 m (from May 2005 to May 2014) are used to calibrate an equilibrium shoreline model (Castelle et al., 2014). The calibrated model explains 66% of the observed shoreline variability over the calibration period. Over the entire survey period (1998-2014), the model skilfully reproduces the observed shoreline evolution patterns. Especially, the intra-annual shoreline variability driven by the seasonal wave climate as well as shoreline response to individual storms and storm groups are well reproduced. A significant shoreline inter-annual variability (blue arrows in Figure 1) is also found, which is likely driven by the climate variability over the North Atlantic Ocean.< Réduire

Mots clés en anglais

Teleconnexion patterns

Weather regimes

Shoreline changes

Interannual variability

URI

https://oskar-bordeaux.fr/handle/20.500.12278/201926

Project ANR

Processus cross-shore et longshore combinés en morphodynamique littorale - ANR-14-ASTR-0004

Unités de recherche

EPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805