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Sand-mud transition dynamics at embayed beaches during a typhoon season in eastern China

dc.rights.licenseopenen_US
dc.contributor.authorGUO, Junli
dc.contributor.authorSHI, Lianqiang
dc.contributor.authorCHEN, Shenliang
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorCASTELLE, Bruno
IDREF: 087596520
dc.contributor.authorCHANG, Yang
dc.contributor.authorCHENG, Wufeng
dc.date.accessioned2024-02-12T08:17:16Z
dc.date.available2024-02-12T08:17:16Z
dc.date.issued2022-11-01
dc.identifier.issn0025-3227en_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/188024
dc.description.abstractEnSand-mud transition (SMT) is an important boundary of the beach system, and its location and evolution have been increasingly studied in recent years. This study focuses on the location and migration of SMTs and their influencing factors on three representative embayed beaches on the east coast of Zhujiajian Island, Zhejiang Province, China, characterized by different levels of human interventions. Beach topographies, surficial sediment characteristics and nearshore hydrodynamic data were obtained through three field campaigns carried out during the early, middle and late stages of the 2019 typhoon season. This typhoon season included four typhoons with nearshore significant wave height Hs exceeding 3.71 m, and maximum Hs of 6.77 m (Super Typhoon Lekima). Results show that the three beaches were all impacted by the high-energy wave conditions, although with some different behaviors. Sediments of the three beaches all coarsened with worse sorting during the typhoon season, with the nearshore surficial sediments showing similar patterns. The SMTs of the three beaches were stable or migrated seaward during the typhoon season. During the typhoon season, offshore SMT migration was positively correlated with the beach profile volumetric loss at three embayed beaches in this study. The SMTs of beaches with less human intervention are more stable during typhoon season. By including 12 additional embayed beaches of eastern China in our analysis, we found that the SMT offshore distance increases with increasing nearshore average significant wave height, increasing headland offshore extent and decreasing tidal range. Our study suggests that SMT is a relevant indicator of beach sediment stability, which can help to increase the understanding of embayed beach dynamics and to guide coastal management and planning during typhoon seasons at such embayed beaches.
dc.language.isoENen_US
dc.title.enSand-mud transition dynamics at embayed beaches during a typhoon season in eastern China
dc.typeArticle de revueen_US
dc.identifier.doi10.1016/j.margeo.2021.106633en_US
dc.subject.halPlanète et Univers [physics]/Sciences de la Terre/Géomorphologieen_US
dc.subject.halPlanète et Univers [physics]/Sciences de la Terre/Océanographieen_US
bordeaux.journalMarine Geologyen_US
bordeaux.page106633en_US
bordeaux.volume441en_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.sourcehal
hal.identifierhal-03411335
hal.version1
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exportfalse
workflow.import.sourcehal
dc.rights.ccPas de Licence CCen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Marine%20Geology&rft.date=2022-11-01&rft.volume=441&rft.spage=106633&rft.epage=106633&rft.eissn=0025-3227&rft.issn=0025-3227&rft.au=GUO,%20Junli&SHI,%20Lianqiang&CHEN,%20Shenliang&CASTELLE,%20Bruno&CHANG,%20Yang&rft.genre=article


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