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A morphodynamic mechanism for transverse bars in the nearshore

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dc.contributor Universitat de Vic. Escola Politècnica Superior
dc.contributor.author Caballeria, Miquel
dc.contributor.author Falqués, Albert
dc.contributor.author Coco, G.
dc.contributor.author Huntley, D.A.
dc.date.accessioned 2014-12-03T12:34:59Z
dc.date.available 2014-12-03T12:34:59Z
dc.date.created 2001
dc.date.issued 2001
dc.identifier.citation Caballeria, M., Falqués, A., Coco, G., and Huntley, D. (2001) A Morphodynamic Mechanism for Transverse Bars in the Nearshore. Coastal Dynamics '01: pp. 1058-1067. doi: 10.1061/40566(260)108 ca_ES
dc.identifier.isbn 0-7844-0566-2
dc.identifier.isbn http://dx.doi.org/10.1061/40566(260)108
dc.identifier.uri http://hdl.handle.net/10854/3693
dc.description.abstract Sand bars which are normal to the coastline have been described on sandy beaches Irom low to moderate wave energy (Niedoroda and Tanner, 1979; Konicki and Holman, 2000). A generating mechanism lor such bars is here proposed that is based upon the coupling between water motions and the evolving topography in case 01 normal wave incidence. 6asically, the momentum carried by the incident waves is locused by the bars because 01 topographic relraction. This causes a strong onshore current on the bars and return Ilow at the troughs in between. Since wave stirring is typically decreasing shoreward, the onshore current over the bars produces accretion and the offshore current at the troughs produces erosiono A positive leedback is thus created between circulation and morphology and this explains the growth 01 the bars. A nonlinear numerical model 01 sur! zone morphodynamics has been set up to show the growth 01 sueh bars Irom a number 01 dillerent small amplitude initial perturbations 01 the alongshore unilorm equilibrium. ca_ES
dc.format application/pdf
dc.format.extent 10 p. ca_ES
dc.language.iso eng ca_ES
dc.publisher American Society of Civil Engineers ca_ES
dc.rights Tots els drets reservats ca_ES
dc.rights (c) American Society of Civil Engineers
dc.subject.other Platges - Erosió ca_ES
dc.title A morphodynamic mechanism for transverse bars in the nearshore ca_ES
dc.type info:eu-repo/semantics/article ca_ES
dc.identifier.doi https://doi.org/10.1061/40566(260)108
dc.relation.publisherversion http://ascelibrary.org/doi/abs/10.1061/40566%28260%29108
dc.rights.accesRights info:eu-repo/semantics/closedAccess ca_ES
dc.type.version info:eu-repo/publishedVersion

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