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Intratidal and Subtidal Circulation in a Tropical Estuary during Wet Season: The Maroni, French Guiana

dc.rights.licenseopenen_US
hal.structure.identifierUniversity of Maine
dc.contributor.authorROSS, Lauren
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorSOTTOLICHIO, Aldo
IDREF: 158099699
hal.structure.identifierLaboratoire Ecologie, Evolution, Interactions des Systèmes amazoniens [LEEISA]
dc.contributor.authorMAURY, Tanguy
hal.structure.identifierMorphodynamique Continentale et Côtière [M2C]
dc.contributor.authorLESOURD, Sandric
hal.structure.identifierLaboratoire Ecologie, Evolution, Interactions des Systèmes amazoniens [LEEISA]
dc.contributor.authorGARDEL, Antoine
dc.date.accessioned2024-02-28T09:31:07Z
dc.date.available2024-02-28T09:31:07Z
dc.date.issued2019
dc.identifier.issn2077-1312en_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/188476
dc.description.abstractEnObservations of water level, current velocity, river discharge, wind and salinity were collected in the Maroni estuary, on the border of French Guiana and Suriname during the wet season of 2018 to explore subtidal circulation patterns. Measurements are complimented by the application of analytical models with an aim to diagnose forcing mechanisms responsible for producing subtidal flows during the day of data collection and to extrapolate these findings to other time periods with variable wind and river forcing. Subtidal along-channel flows were found to be dominated by river discharge, with seaward directed velocities found throughout the channel section reaching 40 cm s −1. This pattern was altered with strong southwesterly winds, which produced and inverse gravitational circulation pattern despite the elevated river discharge. Secondary, or cross-channel flows, displayed a three-layer vertical structure in the main channel due to a combination of channel curvature and tidal asymmetry in the lateral baroclinic pressure gradient. The pressure gradient was produced by a salinity intrusion front that only manifested in the channel during flood tide. This is the first comprehensive study of tidal and subtidal flow dynamics in the Maroni estuary.
dc.language.isoENen_US
dc.subject.enwet season
dc.subject.ensubtidal flow
dc.subject.entropical estuary
dc.subject.enwind-driven flow
dc.subject.enchannel curvature
dc.title.enIntratidal and Subtidal Circulation in a Tropical Estuary during Wet Season: The Maroni, French Guiana
dc.typeArticle de revueen_US
dc.identifier.doi10.3390/jmse7120433en_US
dc.subject.halSciences de l'environnementen_US
dc.subject.halPlanète et Univers [physics]/Interfaces continentales, environnementen_US
dc.subject.halPlanète et Univers [physics]/Sciences de la Terre/Océanographieen_US
bordeaux.journalJournal of Marine Science and Engineeringen_US
bordeaux.page433en_US
bordeaux.volume7en_US
bordeaux.hal.laboratoriesEPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805en_US
bordeaux.issue12en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionCNRSen_US
bordeaux.teamMETHYSen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.import.sourcehal
hal.identifierhal-02385489
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=Journal%20of%20Marine%20Science%20and%20Engineering&rft.date=2019&rft.volume=7&rft.issue=12&rft.spage=433&rft.epage=433&rft.eissn=2077-1312&rft.issn=2077-1312&rft.au=ROSS,%20Lauren&SOTTOLICHIO,%20Aldo&MAURY,%20Tanguy&LESOURD,%20Sandric&GARDEL,%20Antoine&rft.genre=article


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