Influence of the Barrie de la Maza dock on the circulation pattern of the Ría of a Coruña (NW-Spain)
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.1/168 |
Resumo: | A 3D hydrodynamical model is applied to the ria of A Coruña to analyze the evolution of the circulation pattern in the ria after the building of a breakwater (Barrie de la Maza dock) in the sixties. This circulation pattern has changed greatly. On the one hand, the circulation, which was almost parallel to the shore line under the original conditions, now shows a gyre near the end of the dock. On the other hand, a considerable increase (about 30%) in the velocities near the end of the breakwater and in the main channel of the estuary has been observed after the building of the dock. A stronger bottom shear stress has been generated in the estuary areas where the velocity increased. The bottom shear stress increase was particularly great (over 100%) near the end of the dock. This increase in the shear stress produced bottom erosion and matter resuspension, and consequently major changes in the bathymetry. In addition, in situ sedimentary measurements carried out by Lopez-Jamar (1996) corroborate the bottom erosion in the main chanel of the estuary and at the end of the dock produced by the velocity increase generated by the building of the breakwater. |
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Influence of the Barrie de la Maza dock on the circulation pattern of the Ría of a Coruña (NW-Spain)EstuáriosQuebra mares532A 3D hydrodynamical model is applied to the ria of A Coruña to analyze the evolution of the circulation pattern in the ria after the building of a breakwater (Barrie de la Maza dock) in the sixties. This circulation pattern has changed greatly. On the one hand, the circulation, which was almost parallel to the shore line under the original conditions, now shows a gyre near the end of the dock. On the other hand, a considerable increase (about 30%) in the velocities near the end of the breakwater and in the main channel of the estuary has been observed after the building of the dock. A stronger bottom shear stress has been generated in the estuary areas where the velocity increased. The bottom shear stress increase was particularly great (over 100%) near the end of the dock. This increase in the shear stress produced bottom erosion and matter resuspension, and consequently major changes in the bathymetry. In addition, in situ sedimentary measurements carried out by Lopez-Jamar (1996) corroborate the bottom erosion in the main chanel of the estuary and at the end of the dock produced by the velocity increase generated by the building of the breakwater.SapientiaGómez-Gesteira, MonchoDecastro, MaitePrego, RicardoMartins, Flávio Augusto Bastos da Cruz2009-02-13T17:10:01Z20082008-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.1/168engSCIENTIA MARINAScientia Marina. - Barcelona. - Vol. 66, nº. 4 (2002), p. 337-346info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-24T10:10:53Zoai:sapientia.ualg.pt:10400.1/168Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:54:34.724485Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Influence of the Barrie de la Maza dock on the circulation pattern of the Ría of a Coruña (NW-Spain) |
title |
Influence of the Barrie de la Maza dock on the circulation pattern of the Ría of a Coruña (NW-Spain) |
spellingShingle |
Influence of the Barrie de la Maza dock on the circulation pattern of the Ría of a Coruña (NW-Spain) Gómez-Gesteira, Moncho Estuários Quebra mares 532 |
title_short |
Influence of the Barrie de la Maza dock on the circulation pattern of the Ría of a Coruña (NW-Spain) |
title_full |
Influence of the Barrie de la Maza dock on the circulation pattern of the Ría of a Coruña (NW-Spain) |
title_fullStr |
Influence of the Barrie de la Maza dock on the circulation pattern of the Ría of a Coruña (NW-Spain) |
title_full_unstemmed |
Influence of the Barrie de la Maza dock on the circulation pattern of the Ría of a Coruña (NW-Spain) |
title_sort |
Influence of the Barrie de la Maza dock on the circulation pattern of the Ría of a Coruña (NW-Spain) |
author |
Gómez-Gesteira, Moncho |
author_facet |
Gómez-Gesteira, Moncho Decastro, Maite Prego, Ricardo Martins, Flávio Augusto Bastos da Cruz |
author_role |
author |
author2 |
Decastro, Maite Prego, Ricardo Martins, Flávio Augusto Bastos da Cruz |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Sapientia |
dc.contributor.author.fl_str_mv |
Gómez-Gesteira, Moncho Decastro, Maite Prego, Ricardo Martins, Flávio Augusto Bastos da Cruz |
dc.subject.por.fl_str_mv |
Estuários Quebra mares 532 |
topic |
Estuários Quebra mares 532 |
description |
A 3D hydrodynamical model is applied to the ria of A Coruña to analyze the evolution of the circulation pattern in the ria after the building of a breakwater (Barrie de la Maza dock) in the sixties. This circulation pattern has changed greatly. On the one hand, the circulation, which was almost parallel to the shore line under the original conditions, now shows a gyre near the end of the dock. On the other hand, a considerable increase (about 30%) in the velocities near the end of the breakwater and in the main channel of the estuary has been observed after the building of the dock. A stronger bottom shear stress has been generated in the estuary areas where the velocity increased. The bottom shear stress increase was particularly great (over 100%) near the end of the dock. This increase in the shear stress produced bottom erosion and matter resuspension, and consequently major changes in the bathymetry. In addition, in situ sedimentary measurements carried out by Lopez-Jamar (1996) corroborate the bottom erosion in the main chanel of the estuary and at the end of the dock produced by the velocity increase generated by the building of the breakwater. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008 2008-01-01T00:00:00Z 2009-02-13T17:10:01Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.1/168 |
url |
http://hdl.handle.net/10400.1/168 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
SCIENTIA MARINAScientia Marina. - Barcelona. - Vol. 66, nº. 4 (2002), p. 337-346 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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