Hydrodynamics of a tropical estuary: Buranhem River, Porto Seguro, Brazil

dc.contributor.authorRodrigues de Sa Silva, Ana Carolina [UNESP]
dc.contributor.authorCordeiro Bernardes, Marcos Eduardo
dc.contributor.authorAssireu, Arcilan Trevenzoli
dc.contributor.authorSiegle, Eduardo
dc.contributor.authorGomes de Oliveira Sousa, Paulo Henrique
dc.contributor.authorBrown, Dustin
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv Fed Sul Bahia
dc.contributor.institutionUniv Fed Itajuba
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniv Integracao Int Lusofonia Afrobrasileira
dc.contributor.institutionUniv Guelph
dc.date.accessioned2018-11-26T16:04:27Z
dc.date.available2018-11-26T16:04:27Z
dc.date.issued2017-01-01
dc.description.abstractEstuaries are dynamic environments that are highly vulnerable to anthropogenic influences, especially when adjacent to urban areas. In this study it is assessed for the first time the hydrodynamic characteristics of the Buranhem estuary (Northeast Brazil). The aim is to define the salt transport mechanisms and the hydrodynamics and stratification patterns of this tropical estuary, under both spring and neap tidal conditions. Fieldwork was carried out during 8 days covering varying tidal range conditions (July 30th to August 7th, 2015). Salinity and temperature were continuously monitored at moored stations at both the surface and bottom, whereas velocity profile was sampled by a bottom-mounted instrument. Average velocity in the water column was 0.46 m. s(-1) during flood tides and 1.0 m. s(-1) during ebb tides. Residual currents were seaward, with ebb dominance. The dominant salt transport mechanism is turbulent diffusion. Most of the layer Richardson values did not exceed 2, indicating well mixed conditions mainly during spring tides. Stratification varies with tide condition, with spring tides being able to further mix the vertical structure. Vertical velocity gradients that generate vertical mixing overcome the stabilizing effects generated by vertical density gradients.en
dc.description.affiliationUniv Estadual Paulista, Guaratingueta, SP, Brazil
dc.description.affiliationUniv Fed Sul Bahia, Eunapolis, BA, Brazil
dc.description.affiliationUniv Fed Itajuba, Itajuba, MG, Brazil
dc.description.affiliationUniv Sao Paulo, Sao Paulo, SP, Brazil
dc.description.affiliationUniv Integracao Int Lusofonia Afrobrasileira, Redencao, CE, Brazil
dc.description.affiliationUniv Guelph, Guelph, ON, Canada
dc.description.affiliationUnespUniv Estadual Paulista, Guaratingueta, SP, Brazil
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFederal University of Southern Bahia (UFSB)
dc.description.sponsorshipFederal University of Itajuba (UNIFEI)
dc.description.sponsorshipOceanographic Institute of the University of Sao Paulo (IOUSP)
dc.description.sponsorshipState University of Santa Cruz (UESC)
dc.description.sponsorshipIdCNPq: 447545/2014-0
dc.format.extent9
dc.identifierhttp://dx.doi.org/10.1590/2318-0331.0318170141
dc.identifier.citationRbrh-revista Brasileira De Recursos Hidricos. Porte Alegre: Assoc Brasileira Recursos Hidricos-abrh, v. 23, 9 p., 2017.
dc.identifier.doi10.1590/2318-0331.0318170141
dc.identifier.fileS2318-03312018000100202.pdf
dc.identifier.issn1414-381X
dc.identifier.scieloS2318-03312018000100202
dc.identifier.urihttp://hdl.handle.net/11449/160432
dc.identifier.wosWOS:000438515500005
dc.language.isoeng
dc.publisherAssoc Brasileira Recursos Hidricos-abrh
dc.relation.ispartofRbrh-revista Brasileira De Recursos Hidricos
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectTide
dc.subjectStratification
dc.subjectSalinity
dc.titleHydrodynamics of a tropical estuary: Buranhem River, Porto Seguro, Brazilen
dc.typeArtigo
dcterms.rightsHolderAssoc Brasileira Recursos Hidricos-abrh
unesp.author.orcid0000-0003-3926-1710[4]

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