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dc.contributor.authorNnafie, abdel
dc.contributor.authorSwart, Huib E. de
dc.contributor.authorCalvete Manrique, Daniel
dc.contributor.authorGarnier, Roland
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Física Aplicada
dc.date.accessioned2014-06-17T13:41:00Z
dc.date.created2014-05-01
dc.date.issued2014-05-01
dc.identifier.citationNnafie, A. [et al.]. Modeling the response of shoreface-connected sand ridges to sand extraction on an inner shelf. "Ocean dynamics", 01 Maig 2014, vol. 64, núm. 5, p. 723-740.
dc.identifier.issn1616-7341
dc.identifier.urihttp://hdl.handle.net/2117/23249
dc.description.abstractShoreface-connected sand ridges are rhythmic bedforms that occur on many storm-dominated inner shelves. The ridges span several kilometers, are a few meters high, and they evolve on a timescale of centuries. A process-based model is used to gain a fundamental insight into the response of these ridges to extraction of sand. Different scenarios of sand extraction (depth, location, and geometry of the extraction area; multiple sand extractions) are imposed. For each scenario, the response timescale as well as the characteristics of the new equilibrium state are determined. Results show that ridges partially restore after extraction, i.e., the disturbed bathymetry recovers on decadal timescales. However, in the end, the ridge original sand volume is not recovered. Initially, most sand that accomplishes the infill of the pit originates from the area upstream of the extraction, as well as from the areas surrounding the pit. The contribution of the latter strongly decreases in the subsequent time period. Depending on the location of the pit, additional sand sources contribute: First, if the pit is located close to the downstream trough, the pit gains sand by reduction of sand transport from the ridge to this trough. Second, if the pit is located close to the adjacent outer shelf, the ridge recovery is stronger due to an import of sand from that area. Furthermore, pits that are located close to the nearshore zone have a weak recovery, deeper pits have longer recovery timescales, wide and shallow pits recover most sand, while multiple sand pits slow down the recovery process.
dc.format.extent18 p.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Física
dc.subject.lcshSand waves
dc.subject.lcshSediment transport
dc.subject.lcshCoastal engineering
dc.subject.otherSand ridges
dc.subject.otherInner shelf
dc.subject.otherSand extraction
dc.subject.otherStorm-driven flow
dc.subject.otherMorphodynamics
dc.subject.otherPit infill
dc.subject.otherRecovery
dc.subject.otherCENTRAL DUTCH COAST
dc.subject.otherSEDIMENT TRANSPORT
dc.subject.otherLONG-ISLAND
dc.subject.otherFLOW
dc.subject.otherEVOLUTION
dc.subject.otherBEHAVIOR
dc.subject.otherMAINTENANCE
dc.subject.otherMECHANISMS
dc.subject.otherWAVES
dc.subject.otherFIELD
dc.titleModeling the response of shoreface-connected sand ridges to sand extraction on an inner shelf
dc.typeArticle
dc.subject.lemacSorra -- Platges
dc.subject.lemacEnginyeria de costes
dc.subject.lemacSediments (Geologia) -- Transport
dc.contributor.groupUniversitat Politècnica de Catalunya. DF - Dinàmica No Lineal de Fluids
dc.identifier.doi10.1007/s10236-014-0714-9
dc.relation.publisherversionhttp://link.springer.com/article/10.1007%2Fs10236-014-0714-9
dc.rights.accessRestricted access - publisher's policy
drac.iddocument14938479
dc.description.versionPostprint (published version)
dc.date.lift10000-01-01
upcommons.citation.authorNnafie, A.; de Swart, H.E.; Calvete, D.; Garnier, R.
upcommons.citation.publishedtrue
upcommons.citation.publicationNameOcean dynamics
upcommons.citation.volume64
upcommons.citation.number5
upcommons.citation.startingPage723
upcommons.citation.endingPage740


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Except where otherwise noted, content on this work is licensed under a Creative Commons license: Attribution-NonCommercial-NoDerivs 3.0 Spain