A new breaking wave height direct estimator from video imagery

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dc.contributor.authorAlmar, Rafael
dc.contributor.authorCienfuegos, Rodrigo
dc.contributor.authorCatalan, Patricio A.
dc.contributor.authorMichallet, Herve
dc.contributor.authorCastelle, Bruno
dc.contributor.authorBonneton, Philippe
dc.contributor.authorMarieu, Vincent
dc.date.accessioned2024-01-10T13:45:48Z
dc.date.available2024-01-10T13:45:48Z
dc.date.issued2012
dc.description.abstractBreaker height is a key parameter of nearshore processes and the demand for a continuous remote estimator is pressing. In this paper we present a standalone remote video-based method that estimates wave height at the breakpoint. Individual breaking events are first identified from changes in optical properties and wave height is further derived from the optical signature at the onset of breaking. An extended validation is performed using a dense wave basin dataset. The results show the ability of the method to measure individual breaker heights (9% of mean error, 18% RMS). In addition, the unique combination of in situ and remotely sensed data allows the estimation of two other breaking-related parameters, the height-to-depth ratio and wave front face slope, which show a substantial amount of dispersion. Because nearshore video systems are rapidly spreading over world coasts, this low-cost remote breaker height estimator should encounter large interest in coastal engineering studies. (C) 2011 Elsevier B.V. All rights reserved.
dc.description.funderproject FONDECYT
dc.description.funderproject BARBEC
dc.description.funderproject BARCAN (LEFE/INSU)
dc.description.funderPontificia Universidad Catolica de Chile
dc.fechaingreso.objetodigital2024-03-26
dc.format.extent7 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.coastaleng.2011.12.004
dc.identifier.eissn1872-7379
dc.identifier.issn0378-3839
dc.identifier.urihttps://doi.org/10.1016/j.coastaleng.2011.12.004
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/79082
dc.identifier.wosidWOS:000300866900005
dc.information.autorucIngeniería;Cienfuegos R ;S/I;8598
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final48
dc.pagina.inicio42
dc.publisherELSEVIER SCIENCE BV
dc.revistaCOASTAL ENGINEERING
dc.rightsacceso restringido
dc.subjectRemote sensing
dc.subjectWave measurement
dc.subjectLaboratory experiment
dc.subjectRoller
dc.subjectWave front face angle
dc.subjectHeight-to-depth ratio
dc.subjectCoastal management
dc.subjectNEARSHORE BATHYMETRY
dc.subjectMODEL
dc.subjectINVERSION
dc.subject.ods13 Climate Action
dc.subject.ods14 Life Below Water
dc.subject.odspa13 Acción por el clima
dc.subject.odspa14 Vida submarina
dc.titleA new breaking wave height direct estimator from video imagery
dc.typeartículo
dc.volumen61
sipa.codpersvinculados8598
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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