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Evaluation of the recent morphological evolution of the Gironde estuary through the use of some preliminary synthetic indicators

dc.rights.licenseopenen_US
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorSOTTOLICHIO, Aldo
IDREF: 158099699
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorHANQUIEZ, Vincent
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorPERINOTTO, Helene
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorSABOURAUD, Laurie
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorWEBER, Olivier
dc.date.accessioned2024-11-13T10:36:11Z
dc.date.available2024-11-13T10:36:11Z
dc.date.issued2013-04-01
dc.identifier.issn0749-0208en_US
dc.identifier.urihttps://www.researchgate.net/publication/264236067_Evaluation_of_the_recent_morphological_evolution_of_the_Gironde_estuary_through_the_use_of_some_preliminary_synthetic_indicators
dc.identifier.urioai:researchgate.net:264236067
dc.identifier.urioai:crossref.org:10.2112/si65-207.1
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/203226
dc.description.abstractEnDrastic evolution of the physical coastal environment are expected in the future under the effect of climate change. They make necessary to better understand the past morphology evolution, especially considering areas that are the habitat for some specific ecosystems. Moreover, because the context of the water framework directive (WFD), EU members need to generate indicators to evaluate the status of estuarine water masses. To satisfy these two obectives, the recent evolution of the Gironde estuary has been studied by the analysis of bathymetry with GIS. The Gironde is the largest estuary of western Europe, and one of the most turbid. In this study, the analysis extents from 1962 to 1994. Results show that the zone of maximum volume of deposited sediment has migrated continuously towards the upstream portion of the estuary, which is coherent with the decrease of summer river flow and the upstream shift of the turbidity maximum toward the riverine sections. In addition, zones with relative stable and unstable morphology were identified, showing rythmic distribution similarly to those previously recognized through the evolution over 160 years (18251984). This seems to be independent from the fluvial regime, but rather related to the interaction between tidal co-oscillations and estuarine morphology, which is not elucidated yet. Finally, some hydro-morpho-sediemntary (HMS) indicators useful to the WFD have been described : distribution of depths, changes on cross section areas, changes of intertidal areas. They are discussed to discriminate the "natural" and "anthropogenic" contribution to morphological changes observed.
dc.language.isoENen_US
dc.sourceresearchgate
dc.sourcecrossref
dc.title.enEvaluation of the recent morphological evolution of the Gironde estuary through the use of some preliminary synthetic indicators
dc.typeArticle de revueen_US
dc.identifier.doi10.2112/si65-207.1en_US
dc.subject.halSciences de l'environnementen_US
bordeaux.journalJournal of Coastal Researchen_US
bordeaux.page1224-1229en_US
bordeaux.volume165en_US
bordeaux.hal.laboratoriesEPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionCNRSen_US
bordeaux.teamMETHYSen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.import.sourcedissemin
hal.identifierhal-04779909
hal.version1
hal.date.transferred2024-11-13T10:36:16Z
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exporttrue
workflow.import.sourcedissemin
dc.rights.ccPas de Licence CCen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Coastal%20Research&rft.date=2013-04-01&rft.volume=165&rft.spage=1224-1229&rft.epage=1224-1229&rft.eissn=0749-0208&rft.issn=0749-0208&rft.au=SOTTOLICHIO,%20Aldo&HANQUIEZ,%20Vincent&PERINOTTO,%20Helene&SABOURAUD,%20Laurie&WEBER,%20Olivier&rft.genre=article


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