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Coastal ridge constructive processes at a multi-decadal scale in Barreta Island (southern Portugal)

2020-02Journal article Restricted access
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dc.contributor.authorHerrero, Xabier
dc.contributor.authorCostas, Susana
dc.contributor.authorKombiadou, Katerina
dc.date.accessioned2020-07-24T10:50:54Z
dc.date.available2020-07-24T10:50:54Z
dc.date.issued2020-02
dc.description.abstractMultiple ridges across prograding coasts may display variable geometries, commonly expressed through varying elevations. Changes in ridge elevation have been traditionally related to the occurrence of fluctuating progradation rates, which might, in turn, be driven by shifting environmental conditions. Here, we explore the geometry and growth mechanisms of multiple ridges, generated at Barreta Island (Ria Formosa, southern Portugal), as a consequence of the rapid progradation of the island over the last 70 years, following the artificial fixation of the downdrift Faro-Olhao inlet with jetties in 1955. The variability in the morphology of these features was analysed in combination with available wind and wave data, in order to better distinguish growth mechanisms and understand the main parameters determining the final geometry of the observed ridges. The results suggest that (1) most of the identified ridges fall in the beach ridge classification, as they have been mostly built by marine processes, and (2) the parameters derived from, or closely related to wave climate variability (e.g. progradation rates, storm occurrence) can jointly explain most of the observed morphological changes, while aeolian processes played a secondary role. Indeed, ridge geometry appears mainly controlled by progradation rates, with higher ridges associated with lower progradation rates. Progradation rate, in turn, is mostly related to longshore wave power, storminess, and the occurrence storm groups. Yet, the final configuration of ridges can also be affected by runup levels and onshore winds. Therefore, establishing the relation between ridge geometry and wave climate is not a straightforward task, because of the complex processes and interactions that control coastal morphodynamics. (c) 2019 John Wiley & Sons, Ltd.
dc.description.sponsorshipPortuguese Science Foundation (Fundacao para a Ciencia e a Tecnologia, FCT) through the project EVREST [PTDC/MAREST/1031/2014]
dc.description.sponsorshipPortuguese Science Foundation (Fundacao para a Ciencia e a Tecnologia, FCT) through the project ENLACE [28949]
dc.description.sponsorshipPortuguese Science Foundation (Fundacao para a Ciencia e a Tecnologia, FCT)Portuguese Foundation for Science and Technology [IF-01047-2014]
dc.description.sponsorship[UID/MAR/00350/2013]
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1002/esp.4742
dc.identifier.issn0197-9337
dc.identifier.urihttp://hdl.handle.net/10400.1/14170
dc.language.isoeng
dc.peerreviewedyes
dc.publisherWiley
dc.relationInnovative strategies for copper-free low input and organic farming systems
dc.subjectSand beach ridges
dc.subjectSediment transport
dc.subjectSea level
dc.subjectDunes
dc.subjectProgradation
dc.subjectEvolution
dc.subjectForedunes
dc.subjectDynamics
dc.subjectSystem
dc.subjectRecord
dc.titleCoastal ridge constructive processes at a multi-decadal scale in Barreta Island (southern Portugal)
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleInnovative strategies for copper-free low input and organic farming systems
oaire.awardURIinfo:eu-repo/grantAgreement/EC/FP7/289497/EU
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FMAR%2F00350%2F2013/PT
oaire.citation.endPage423
oaire.citation.issue2
oaire.citation.startPage411
oaire.citation.titleEarth Surface Processes and Landforms
oaire.citation.volume45
oaire.fundingStreamFP7
oaire.fundingStream5876
person.familyNameCostas
person.familyNameKombiadou
person.givenNameSusana
person.givenNameKaterina
person.identifier1448818
person.identifier.ciencia-idAF19-9EEE-7550
person.identifier.ciencia-id1813-F159-070B
person.identifier.orcid0000-0002-4005-077X
person.identifier.orcid0000-0003-1199-1236
person.identifier.ridM-7458-2017
person.identifier.scopus-author-id9043656500
person.identifier.scopus-author-id16029005200
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameEuropean Commission
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccess
rcaap.typearticle
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relation.isAuthorOfPublication97b4019d-d2a2-480b-a04b-c1c5e4e6fc33
relation.isAuthorOfPublication.latestForDiscovery97b4019d-d2a2-480b-a04b-c1c5e4e6fc33
relation.isProjectOfPublication8591d551-19b6-4136-ba3d-2de68ec77884
relation.isProjectOfPublication3c9090f1-c8fc-4990-8cd8-d61d72eb13f7
relation.isProjectOfPublication.latestForDiscovery8591d551-19b6-4136-ba3d-2de68ec77884

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