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Upwelling processes variability and water circulation along the northern margin of the Gulf of Cadiz

2024-10Journal article Open access
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dc.contributor.authorde Oliveira Júnior, Luciano
dc.contributor.authorRelvas, Paulo
dc.contributor.authorGarel, Erwan
dc.date.accessioned2024-10-31T10:12:42Z
dc.date.available2024-10-31T10:12:42Z
dc.date.issued2024-10
dc.description.abstractThe present study investigates the contributions of upwelling mechanisms (coastal upwelling from boundary divergence and Ekman pumping from spatially variable wind) at the northern margin of the Gulf of Cadiz (NMGoC) based on high-resolution wind. The effects of the spatiotemporal upwelling mechanisms variability are then explored using current observations along with sea surface temperature and sea level anomaly. Upwelling favourable conditions occur throughout the year along the NMGoC, with the strongest intensity near Cape Sao ˜ Vicente due to a persistent positive wind stress curl. In winter, the surface water divergence is restricted to the coastal boundary due to strong coastal upwelling events that result in a cross-shore sea-level gradient close to the coast. Towards the summer, the gradient increases and extends further offshore (over the slope) at the western region due to the intensification of the Ekman pumping. Therefore, the seasonal and spatial variability of coastal upwelling and Ekman pumping contributes significantly to the offshore position of the geostrophic Gulf of Cadiz Current over the western shelf slope. Furthermore, a permanent sea level depression corresponds to the location of the strongest Ekman pumping, near Cape Sao ˜ Vicente. The dynamic adjustment of this feature may drive the cyclonic cell and alongshore poleward currents often observed in the area.eng
dc.description.sponsorshipUID/MAR/00350/2020
dc.identifier.doi10.1016/j.csr.2024.105310
dc.identifier.issn0278-4343
dc.identifier.urihttp://hdl.handle.net/10400.1/26185
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relationAquatic Research Infrastructure Network
dc.relationAlgarve Centre for Marine Sciences
dc.relationAlgarve Centre for Marine Sciences
dc.relationCentre for Marine and Environmental Research
dc.relationCoastal circulation along the northern shelf of the Gulf of Cadiz
dc.relation.ispartofContinental Shelf Research
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectEkman transport
dc.subjectEkman pumping
dc.subjectCoastal upwelling
dc.subjectCoastal counter currents
dc.subjectAlongshore pressure gradient
dc.subjectGulf of Cadiz
dc.titleUpwelling processes variability and water circulation along the northern margin of the Gulf of Cadizeng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAquatic Research Infrastructure Network
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleCentre for Marine and Environmental Research
oaire.awardTitleCoastal circulation along the northern shelf of the Gulf of Cadiz
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0069%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0101%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F140250%2F2018/PT
oaire.citation.startPage105310
oaire.citation.titleContinental Shelf Research
oaire.citation.volume281
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNamede Oliveira Júnior
person.familyNameRelvas
person.familyNameGarel
person.givenNameLuciano
person.givenNamePaulo
person.givenNameErwan
person.identifier.ciencia-idEA1D-0D5C-8C56
person.identifier.ciencia-id2412-1F65-A044
person.identifier.ciencia-id5D13-7EA7-6C6D
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person.identifier.orcid0000-0002-6404-5895
person.identifier.orcid0000-0002-4584-9759
person.identifier.ridB-1257-2008
person.identifier.ridN-9811-2014
person.identifier.scopus-author-id6505976206
person.identifier.scopus-author-id23491739700
project.funder.identifierhttp://doi.org/10.13039/501100001871
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project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
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