Planform and mobility in the Meaípe-Maimbá embayed beach on the South East coast of Brazil

The Meaipe-Maimba embayed beach (MMEB) on the south-east coast of Brazil has been subject to anthropogenic pressures since the 70's. In this study we discuss the adequacy and contribution of the parabolic planform model to determine the planform and variability of the MMEB, taking into consider...

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Autores: Albino, Jacqueline, Jiménez Quintana, José Antonio|||0000-0003-0900-4684, Oliveira, Tiago C.A.
Tipo de recurso: artículo
Fecha de publicación:2016
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/86969
Acceso en línea:https://hdl.handle.net/2117/86969
https://dx.doi.org/10.1016/j.geomorph.2015.09.024
Access Level:acceso abierto
Palabra clave:Coast changes--Brazil
Planform modeling
Geological control
Beach morphodynamics
Medium-term
Canvis costaners
Àrees temàtiques de la UPC::Enginyeria civil::Enginyeria hidràulica, marítima i sanitària::Ports i costes
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spelling Planform and mobility in the Meaípe-Maimbá embayed beach on the South East coast of BrazilAlbino, JacquelineJiménez Quintana, José Antonio|||0000-0003-0900-4684Oliveira, Tiago C.A.Coast changes--BrazilPlanform modelingGeological controlBeach morphodynamicsMedium-termCanvis costanersÀrees temàtiques de la UPC::Enginyeria civil::Enginyeria hidràulica, marítima i sanitària::Ports i costesThe Meaipe-Maimba embayed beach (MMEB) on the south-east coast of Brazil has been subject to anthropogenic pressures since the 70's. In this study we discuss the adequacy and contribution of the parabolic planform model to determine the planform and variability of the MMEB, taking into consideration variation in wave conditions. The role of different controlling conditions on the planform variability is analyzed, as well as the morphological and planform mobility. MMEB exhibited a new configuration in response to the construction of a harbor, which interrupted the longshore sediment transport. After four decades, three particular morphodynamic sectors have been recognized along the beach. The central sector is more exposed to normal wave incidence and cross-shore processes predominate. The northern and southern sectors are influenced by wave diffraction processes around the headlands and port, respectively. In the northern sector, the presence of secondary headlands and inner islands imposed a geomorphological control on beach morphology and coastal processes. The use of the parabolic planform model provided useful insights for the assessment of potential planform mobility, since the decadal shoreline evolution combined with beach profiles and sediment characteristics allowed understanding of the beach mobility processes and supported the interpretation of modeling results.Peer Reviewed20162016-01-0120162016-05-11journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/86969https://dx.doi.org/10.1016/j.geomorph.2015.09.024reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2http://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/869692026-05-27T15:37:01Z
dc.title.none.fl_str_mv Planform and mobility in the Meaípe-Maimbá embayed beach on the South East coast of Brazil
title Planform and mobility in the Meaípe-Maimbá embayed beach on the South East coast of Brazil
spellingShingle Planform and mobility in the Meaípe-Maimbá embayed beach on the South East coast of Brazil
Albino, Jacqueline
Coast changes--Brazil
Planform modeling
Geological control
Beach morphodynamics
Medium-term
Canvis costaners
Àrees temàtiques de la UPC::Enginyeria civil::Enginyeria hidràulica, marítima i sanitària::Ports i costes
title_short Planform and mobility in the Meaípe-Maimbá embayed beach on the South East coast of Brazil
title_full Planform and mobility in the Meaípe-Maimbá embayed beach on the South East coast of Brazil
title_fullStr Planform and mobility in the Meaípe-Maimbá embayed beach on the South East coast of Brazil
title_full_unstemmed Planform and mobility in the Meaípe-Maimbá embayed beach on the South East coast of Brazil
title_sort Planform and mobility in the Meaípe-Maimbá embayed beach on the South East coast of Brazil
dc.creator.none.fl_str_mv Albino, Jacqueline
Jiménez Quintana, José Antonio|||0000-0003-0900-4684
Oliveira, Tiago C.A.
author Albino, Jacqueline
author_facet Albino, Jacqueline
Jiménez Quintana, José Antonio|||0000-0003-0900-4684
Oliveira, Tiago C.A.
author_role author
author2 Jiménez Quintana, José Antonio|||0000-0003-0900-4684
Oliveira, Tiago C.A.
author2_role author
author
dc.subject.none.fl_str_mv Coast changes--Brazil
Planform modeling
Geological control
Beach morphodynamics
Medium-term
Canvis costaners
Àrees temàtiques de la UPC::Enginyeria civil::Enginyeria hidràulica, marítima i sanitària::Ports i costes
topic Coast changes--Brazil
Planform modeling
Geological control
Beach morphodynamics
Medium-term
Canvis costaners
Àrees temàtiques de la UPC::Enginyeria civil::Enginyeria hidràulica, marítima i sanitària::Ports i costes
description The Meaipe-Maimba embayed beach (MMEB) on the south-east coast of Brazil has been subject to anthropogenic pressures since the 70's. In this study we discuss the adequacy and contribution of the parabolic planform model to determine the planform and variability of the MMEB, taking into consideration variation in wave conditions. The role of different controlling conditions on the planform variability is analyzed, as well as the morphological and planform mobility. MMEB exhibited a new configuration in response to the construction of a harbor, which interrupted the longshore sediment transport. After four decades, three particular morphodynamic sectors have been recognized along the beach. The central sector is more exposed to normal wave incidence and cross-shore processes predominate. The northern and southern sectors are influenced by wave diffraction processes around the headlands and port, respectively. In the northern sector, the presence of secondary headlands and inner islands imposed a geomorphological control on beach morphology and coastal processes. The use of the parabolic planform model provided useful insights for the assessment of potential planform mobility, since the decadal shoreline evolution combined with beach profiles and sediment characteristics allowed understanding of the beach mobility processes and supported the interpretation of modeling results.
publishDate 2016
dc.date.none.fl_str_mv 2016
2016-01-01
2016
2016-05-11
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/86969
https://dx.doi.org/10.1016/j.geomorph.2015.09.024
url https://hdl.handle.net/2117/86969
https://dx.doi.org/10.1016/j.geomorph.2015.09.024
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

http://creativecommons.org/licenses/by-nc-nd/3.0/es/
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

http://creativecommons.org/licenses/by-nc-nd/3.0/es/
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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