Breaker bar morphodynamics under erosive and accretive wave conditions in large-scale experiments

Differences between breaker bar evolution under high energy (erosive) and subsequent mild energy (accretive) wave conditions are studied based on three data sets from large-scale morphodynamic experiments. Under erosive wave conditions, a clear linear relationship between the height and the cross-sh...

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Detalhes bibliográficos
Autores: Eichentopf, Sonja, Cáceres Rabionet, Iván|||0000-0002-7426-7029, Alsina Torrent, José María|||0000-0002-3055-5379
Formato: artículo
Fecha de publicación:2018
País:España
Recursos:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/127771
Acesso em linha:https://hdl.handle.net/2117/127771
https://dx.doi.org/10.1016/j.coastaleng.2018.04.010
Access Level:acceso abierto
Palavra-chave:Sedimentation and deposition
Morphodynamic experiments
Breaker bar
Beach morphology
Erosive wave conditions
Accretive wave conditions
Sediment transport
Sedimentació marina
Àrees temàtiques de la UPC::Enginyeria civil::Enginyeria hidràulica, marítima i sanitària
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spelling Breaker bar morphodynamics under erosive and accretive wave conditions in large-scale experimentsEichentopf, SonjaCáceres Rabionet, Iván|||0000-0002-7426-7029Alsina Torrent, José María|||0000-0002-3055-5379Sedimentation and depositionMorphodynamic experimentsBreaker barBeach morphologyErosive wave conditionsAccretive wave conditionsSediment transportSedimentació marinaÀrees temàtiques de la UPC::Enginyeria civil::Enginyeria hidràulica, marítima i sanitàriaDifferences between breaker bar evolution under high energy (erosive) and subsequent mild energy (accretive) wave conditions are studied based on three data sets from large-scale morphodynamic experiments. Under erosive wave conditions, a clear linear relationship between the height and the cross-shore location of the breaker bar is observed. The similar cross-shore shape of the sediment transport magnitudes underlines the similarity of the bar evolution under erosive wave conditions. Under the subsequent accretive wave conditions, two major evolution patterns are observed during onshore migration (decaying or non-decaying breaker bar). In the presented data, the feedback between the wave conditions and the beach morphology determines if a bar decays during onshore migration. This feedback involves that the wave breaking location depends on the morphology and on the wave conditions resulting in differences in sediment transport patterns between the two types of onshore bar migration. A comparison against numerous other experimental beach profile data sets strongly supports the linear relationship between bar height and bar location under erosive wave conditions. For accretive wave conditions, the number of comparable data sets is very limited. The comparison underlines that breaker bar evolution under accretive wave conditions cannot be condensed to a single pattern as under erosive wave conditions.20182018-01-0120192019-01-29journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/127771https://dx.doi.org/10.1016/j.coastaleng.2018.04.010reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/1277712026-05-27T15:37:01Z
dc.title.none.fl_str_mv Breaker bar morphodynamics under erosive and accretive wave conditions in large-scale experiments
title Breaker bar morphodynamics under erosive and accretive wave conditions in large-scale experiments
spellingShingle Breaker bar morphodynamics under erosive and accretive wave conditions in large-scale experiments
Eichentopf, Sonja
Sedimentation and deposition
Morphodynamic experiments
Breaker bar
Beach morphology
Erosive wave conditions
Accretive wave conditions
Sediment transport
Sedimentació marina
Àrees temàtiques de la UPC::Enginyeria civil::Enginyeria hidràulica, marítima i sanitària
title_short Breaker bar morphodynamics under erosive and accretive wave conditions in large-scale experiments
title_full Breaker bar morphodynamics under erosive and accretive wave conditions in large-scale experiments
title_fullStr Breaker bar morphodynamics under erosive and accretive wave conditions in large-scale experiments
title_full_unstemmed Breaker bar morphodynamics under erosive and accretive wave conditions in large-scale experiments
title_sort Breaker bar morphodynamics under erosive and accretive wave conditions in large-scale experiments
dc.creator.none.fl_str_mv Eichentopf, Sonja
Cáceres Rabionet, Iván|||0000-0002-7426-7029
Alsina Torrent, José María|||0000-0002-3055-5379
author Eichentopf, Sonja
author_facet Eichentopf, Sonja
Cáceres Rabionet, Iván|||0000-0002-7426-7029
Alsina Torrent, José María|||0000-0002-3055-5379
author_role author
author2 Cáceres Rabionet, Iván|||0000-0002-7426-7029
Alsina Torrent, José María|||0000-0002-3055-5379
author2_role author
author
dc.subject.none.fl_str_mv Sedimentation and deposition
Morphodynamic experiments
Breaker bar
Beach morphology
Erosive wave conditions
Accretive wave conditions
Sediment transport
Sedimentació marina
Àrees temàtiques de la UPC::Enginyeria civil::Enginyeria hidràulica, marítima i sanitària
topic Sedimentation and deposition
Morphodynamic experiments
Breaker bar
Beach morphology
Erosive wave conditions
Accretive wave conditions
Sediment transport
Sedimentació marina
Àrees temàtiques de la UPC::Enginyeria civil::Enginyeria hidràulica, marítima i sanitària
description Differences between breaker bar evolution under high energy (erosive) and subsequent mild energy (accretive) wave conditions are studied based on three data sets from large-scale morphodynamic experiments. Under erosive wave conditions, a clear linear relationship between the height and the cross-shore location of the breaker bar is observed. The similar cross-shore shape of the sediment transport magnitudes underlines the similarity of the bar evolution under erosive wave conditions. Under the subsequent accretive wave conditions, two major evolution patterns are observed during onshore migration (decaying or non-decaying breaker bar). In the presented data, the feedback between the wave conditions and the beach morphology determines if a bar decays during onshore migration. This feedback involves that the wave breaking location depends on the morphology and on the wave conditions resulting in differences in sediment transport patterns between the two types of onshore bar migration. A comparison against numerous other experimental beach profile data sets strongly supports the linear relationship between bar height and bar location under erosive wave conditions. For accretive wave conditions, the number of comparable data sets is very limited. The comparison underlines that breaker bar evolution under accretive wave conditions cannot be condensed to a single pattern as under erosive wave conditions.
publishDate 2018
dc.date.none.fl_str_mv 2018
2018-01-01
2019
2019-01-29
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/127771
https://dx.doi.org/10.1016/j.coastaleng.2018.04.010
url https://hdl.handle.net/2117/127771
https://dx.doi.org/10.1016/j.coastaleng.2018.04.010
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300719

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