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dc.contributor.authorCastelle, Brunoen_US
dc.contributor.authorBonneton, Philippeen_US
dc.contributor.authorDupuis, Hélèneen_US
dc.contributor.authorSénéchal, Nadiaen_US
dc.date.accessioned2017-04-24T14:51:48Z
dc.date.available2017-04-24T14:51:48Z
dc.date.issued2007en_US
dc.date.modified2009-12-18T06:34:07Z
dc.identifier.issn00253227en_US
dc.identifier.doi10.1016/j.margeo.2007.06.001en_AU
dc.identifier.urihttp://hdl.handle.net/10072/27779
dc.description.abstractThe French Aquitanian Coast is an approximately 250 km long straight low coast exposed to high energy conditions in a mesomacrotidal setting. Offshore wave conditions are seasonally modulated, predominantly with a WNW incidence, with offshore significant wave height likely to reach 10 m during winter. Truc Vert Beach, representative of most of the Aquitanian Coast beaches, commonly exhibits two distinct sandbar systems. The inner bar can go through all the stateswithin the intermediate classification and usually exhibits a TansverseBar andRipmorphology. After a few weeks of lower energy conditions during summer, the inner bar commonly becomes a Low Tide Terracewith ameanwavelength of 400mand amean southerlymigration rate of about 2-3m/day.Crescentic bars have been reported in the literature in nontidal to microtidal settings. Long term persistent crescentic patterns are, however, exhibited at a narrow range of wavelength (mean of 700m) by the outer bar at the meso-macrotidal Truc Vert Beach. Most of the time, the outer bar is inactive and stagnates as offshore waves of Hs>3m are required to induce a significant morphological change. The crescent shape varies from a symmetric shape to a strongly asymmetric shape, likely to be the result of a long period of NW wave conditions. A strong, and rarely observed elsewhere, morphological coupling between the inner and outer bars can sometimes be observed, and may be the result of the combined effects of the initial presence of a well-developed outer crescentic bar and a long period of shore-normal low energy conditions. A synthesis of all the data available on the area combined with observations on other environments leads to a Truc Vert Beach statemodel ranging from a modal double bar configuration to an occasional triple bar configuration. This work also identifies knowledge gaps to be explored by further numerical and field studies in tidal double sandbar environments.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_AU
dc.languageEnglishen_US
dc.language.isoen_AU
dc.publisherElsevier BVen_US
dc.publisher.placeNetherlandsen_US
dc.publisher.urihttp://www.elsevier.com/wps/find/journaldescription.cws_home/503350/description#descriptionen_AU
dc.relation.ispartofstudentpublicationNen_AU
dc.relation.ispartofpagefrom141en_US
dc.relation.ispartofpageto159en_US
dc.relation.ispartofjournalMarine Geologyen_US
dc.relation.ispartofvolume245en_US
dc.rights.retentionYen_AU
dc.subject.fieldofresearchGeology not elsewhere classifieden_US
dc.subject.fieldofresearchcode040399en_US
dc.titleDouble bar beach dynamics on the high-energy meso-macrotidal French Aquitanian Coast: A reviewen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.date.issued2007
gro.hasfulltextNo Full Text


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