Nearshore bathymetric inversion from video using a fully non-linear Boussinesq wave model

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dc.catalogadoraba
dc.contributor.authorCienfuegos Carrasco, Rodrigo Alberto
dc.contributor.authorAlmar, R.
dc.contributor.authorBirrien, F.
dc.contributor.authorCastelle, B.
dc.contributor.authorCatalán, P.
dc.contributor.authorMichallet, H.
dc.date.accessioned2024-06-10T21:25:31Z
dc.date.available2024-06-10T21:25:31Z
dc.date.issued2011
dc.description.abstractThis paper presents a new depth inversion methodology from video imagery. The strength of the method is the use of a fully non-linear Boussinesq wave model in combination with a very complete video-derived laboratory wave observation that includes period, celerity and wave height. Compared to the previous use of wave dispersion formulas, here the better description of wave dynamics substantially improves bathymetry estimation. For the considered laboratory case, error on bathymetry is as small as 8 % whereas other formulations, shallow water or non-linear derived solution can only attain 24 % and 14 %, respectively. More in-depth analysis on the error shows a fair sensitivity on video-derived breaker height and describes the large contribution of non-linearities. The recent possibility of using Serre's dispersion relation in combination with video-derived wave height provides a reasonable performance and should be further envisaged for one-dimensional depth inversion. Future extensions of this work involve the use of a two-dimensional Boussinesq model to include more hydrodynamics processes such as wave-driven circulation over three-dimensional surfzone sandbars.
dc.description.funderMODLIT
dc.description.funderFONDECYT
dc.description.funderBARBE
dc.description.funderECOS-CONICYT
dc.format.extent5 páginas
dc.fuente.origenHistorial Académico
dc.fuente.origenORCID
dc.identifier.issn0749-0208
dc.identifier.urihttps://www.jstor.org/stable/26482125
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/86702
dc.identifier.wosidWOS:000302824900006
dc.information.autorucEscuela de Ingeniería; Cienfuegos Carrasco, Rodrigo Alberto; 0000-0001-5768-2477; 8598
dc.issue.numero64
dc.language.isoen
dc.pagina.final24
dc.pagina.inicio20
dc.relation.ispartofPROCEEDINGS OF THE 11th INTERNATIONAL COASTAL SYMPOSIUM ICS2011
dc.revistaJournal of Coastal Research
dc.rightsacceso restringido
dc.subjectDepth inversion algorithms
dc.subjectLaboratory experiment
dc.subjectWave celerity
dc.subjectRemote sensing
dc.subjectBeach morphodynamics
dc.subjectSerre equations
dc.subject.ddc620
dc.subject.deweyIngenieríaes_ES
dc.titleNearshore bathymetric inversion from video using a fully non-linear Boussinesq wave model
dc.typecomunicación de congreso
sipa.codpersvinculados8598
sipa.trazabilidadORCID;2024-06-03
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