The seasonal circulation of the Eastern Brazilian shelf between 10°S and 16°S: A modelling approach

Detalhes bibliográficos
Autor(a) principal: Amorim, F. N.
Data de Publicação: 2013
Outros Autores: Cirano, M., Marta-Almeida, M., Middleton, John F., Campos, Edmo José Dias
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://repositorio.ufba.br/ri/handle/ri/13781
Resumo: Texto completo. Acesso restrito. p. 121–140
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spelling Amorim, F. N.Cirano, M.Marta-Almeida, M.Middleton, John F.Campos, Edmo José DiasAmorim, F. N.Cirano, M.Marta-Almeida, M.Middleton, John F.Campos, Edmo José Dias2013-11-19T20:29:24Z20130278-4343http://repositorio.ufba.br/ri/handle/ri/13781v. 65Texto completo. Acesso restrito. p. 121–140The Regional Ocean Modelling System (ROMS) with embedded nesting capabilities based on AGRIF, configured with a refined grid (1/36°) and realistic forcings (6-hourly winds and surface fluxes, daily large scale oceanic forcings and tides), was implemented to describe the seasonal circulation within the Eastern Brazilian Shelf (EBS) between 10°S and 16°S and its interaction with the mesoscale dynamics associated with the Western Boundary Currents (WBC) which flow over the slope: the Brazil Current/North Brazil Current-Undercurrent (BC/NBC–NBUC), as well as the contribution of the forcing mechanisms on the generation of the shelf/slope currents. The model results show, based on the methodology adopted, that for the northern limit (10°S) the northward flow is the dominant pattern while the southward flow appears as a shallow flow confined to the top 50 m of the water column during the spring/summer seasons. The surface circulation at the inner- and mid-shelves in this region is mostly influenced by the wind forcing, while at the shelf-break the currents are mainly driven by the slope currents during all seasons. In the middle (14°S) and southern (16°S) domains, there is an alternate dominance of the southward/northward flows for the first 150 m of the water column, with the dominance of the southward (northward) flow between October–February (March–September) at 14°S. However, the annual net transport in these regions is oriented southwards. On the other hand, in the sub-surface (View the MathML source) the dominance of the northward flow is clear. At 14°S, the inner-shelf circulation is mainly driven by the wind forcing and the mid-shelf circulation is forced by both the wind and the flow over the slope, while the currents at the shelf-break are more influenced by the currents at the slope. Finally, the inner- and mid-shelf currents at 16°S are mainly driven by the wind forcing, while the shelf-break currents present a poor correlation with the wind and a strong influence of the WBC dynamics.Submitted by Santiago Fabio (fabio.ssantiago@hotmail.com) on 2013-10-09T19:41:17Z No. of bitstreams: 1 5555555555.pdf: 9561218 bytes, checksum: 131e4d36f231c017242646c10ded7073 (MD5)Approved for entry into archive by Rodrigo Meirelles (rodrigomei@ufba.br) on 2013-11-19T20:29:24Z (GMT) No. of bitstreams: 1 5555555555.pdf: 9561218 bytes, checksum: 131e4d36f231c017242646c10ded7073 (MD5)Made available in DSpace on 2013-11-19T20:29:24Z (GMT). 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dc.title.pt_BR.fl_str_mv The seasonal circulation of the Eastern Brazilian shelf between 10°S and 16°S: A modelling approach
dc.title.alternative.pt_BR.fl_str_mv Continental Shelf Research
title The seasonal circulation of the Eastern Brazilian shelf between 10°S and 16°S: A modelling approach
spellingShingle The seasonal circulation of the Eastern Brazilian shelf between 10°S and 16°S: A modelling approach
Amorim, F. N.
Shelf currents
Wind-driven circulation
Western Boundary Currents
South Equatorial Current
Regional Modelling
title_short The seasonal circulation of the Eastern Brazilian shelf between 10°S and 16°S: A modelling approach
title_full The seasonal circulation of the Eastern Brazilian shelf between 10°S and 16°S: A modelling approach
title_fullStr The seasonal circulation of the Eastern Brazilian shelf between 10°S and 16°S: A modelling approach
title_full_unstemmed The seasonal circulation of the Eastern Brazilian shelf between 10°S and 16°S: A modelling approach
title_sort The seasonal circulation of the Eastern Brazilian shelf between 10°S and 16°S: A modelling approach
author Amorim, F. N.
author_facet Amorim, F. N.
Cirano, M.
Marta-Almeida, M.
Middleton, John F.
Campos, Edmo José Dias
author_role author
author2 Cirano, M.
Marta-Almeida, M.
Middleton, John F.
Campos, Edmo José Dias
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Amorim, F. N.
Cirano, M.
Marta-Almeida, M.
Middleton, John F.
Campos, Edmo José Dias
Amorim, F. N.
Cirano, M.
Marta-Almeida, M.
Middleton, John F.
Campos, Edmo José Dias
dc.subject.por.fl_str_mv Shelf currents
Wind-driven circulation
Western Boundary Currents
South Equatorial Current
Regional Modelling
topic Shelf currents
Wind-driven circulation
Western Boundary Currents
South Equatorial Current
Regional Modelling
description Texto completo. Acesso restrito. p. 121–140
publishDate 2013
dc.date.accessioned.fl_str_mv 2013-11-19T20:29:24Z
dc.date.issued.fl_str_mv 2013
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://repositorio.ufba.br/ri/handle/ri/13781
dc.identifier.issn.none.fl_str_mv 0278-4343
dc.identifier.number.pt_BR.fl_str_mv v. 65
identifier_str_mv 0278-4343
v. 65
url http://repositorio.ufba.br/ri/handle/ri/13781
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Continental Shelf Research
publisher.none.fl_str_mv Continental Shelf Research
dc.source.pt_BR.fl_str_mv http://www.sciencedirect.com/science/article/pii/S0278434313002094
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
instname:Universidade Federal da Bahia (UFBA)
instacron:UFBA
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instacron_str UFBA
institution UFBA
reponame_str Repositório Institucional da UFBA
collection Repositório Institucional da UFBA
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