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Tidal and geological controls on longshore sediment transport along the North of the Médoc coast, SW France

dc.rights.licenseopenen_US
dc.contributor.authorROBINET, Arthur
dc.contributor.authorNICOLAE LERMA, Alexandre
dc.contributor.authorIDIER, Déborah
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorMINGO, Ivana
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorMARIEU, Vincent
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorCASTELLE, Bruno
IDREF: 087596520
dc.date.accessioned2025-02-20T10:57:45Z
dc.date.available2025-02-20T10:57:45Z
dc.date.issued2024
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/205054
dc.description.abstractEnThe north of the Médoc coast, SW France, is a sandy coast with complex environment settings including an irregular bathymetry, shallow banks and rocky outcrops, and adjacent to a km-scale estuary. This coast is strongly affected by marine erosion and exhibits dramatic erosion trends, with shoreline retreats reaching locally several meters per year for decades. New coastal management scenarios for the next years, or even decades, need to be investigated. This will require the implementation and use of reduced-complexity shoreline change models. They are valuable tools to simulate past and future shoreline changes at time scales from seasons to centuries. These models usually rely on time and space integration of wave-driven longshore sediment transport, which is one of the main drivers of shoreline change along sandy coasts on the long-term. This longshore transport is computed from breaking wave conditions, which are controlled by several physical processes occurring within the nearshore area. However, the control of local environmental settings on breaking waves is usually over-simplified in reduced-complexity shoreline change models, if not neglected. This study investigates the sensitivity of the wave-driven longshore sediment transport along the north of the Médoc coast to different physical processes affecting the wave propagation. Results revealed that on a monthly scale the bathymetry and the bottom friction play a predominant role on longshore sediment transport patterns. In contrast, the contribution of tide-driven water levels is lower on this timescale, and even less for contribution of the tide-driven currents.
dc.language.isoENen_US
dc.publisherEditions Paraliaen_US
dc.subject.enWave model
dc.subject.enSWAN
dc.subject.enLongshore sediment transport
dc.subject.enBathymetry
dc.subject.enBottom friction
dc.subject.enTide
dc.subject.enWater level
dc.subject.enCurrents
dc.subject.enSandy coast
dc.subject.enEstuary
dc.subject.enGironde
dc.subject.enMédoc
dc.titleTidal and geological controls on longshore sediment transport along the North of the Médoc coast, SW France
dc.typeActes de congrès/Proceedingsen_US
dc.identifier.doi10.5150/jngcgc.2024.045en_US
bordeaux.hal.laboratoriesEPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionCNRSen_US
bordeaux.conference.titleXVIIIèmes Journées, Angleten_US
bordeaux.teamMETHYSen_US
bordeaux.inpressnonen_US
bordeaux.import.sourcecrossref
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exportfalse
workflow.import.sourcecrossref
dc.rights.ccPas de Licence CCen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.title=Tidal%20and%20geological%20controls%20on%20longshore%20sediment%20transport%20along%20the%20North%20of%20the%20M%C3%A9doc%20coast,%20SW%20France&rft.atitle=Tidal%20and%20geological%20controls%20on%20longshore%20sediment%20transport%20along%20the%20North%20of%20the%20M%C3%A9doc%20coast,%20SW%20France&rft.date=2024&rft.au=ROBINET,%20Arthur&NICOLAE%20LERMA,%20Alexandre&IDIER,%20D%C3%A9borah&MINGO,%20Ivana&MARIEU,%20Vincent&rft.genre=unknown


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