Modeling the Brazil ?Malvinas Confluence: Model Configuration
The upper ocean circulation near the western margin of the South Atlantic Ocean is dominated by the southward flow of the warm and salty Brazil Current and the northward flow of the cold and relatively fresh Malvinas Current. The collision, near 38 o S, of the two jets produces a strong frontal zone...
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ftconicet:oai:ri.conicet.gov.ar:11336/36253 2023-10-09T21:55:56+02:00 Modeling the Brazil ?Malvinas Confluence: Model Configuration Palma, Elbio Daniel Matano, Ricardo Piola, Alberto Ricardo application/pdf http://hdl.handle.net/11336/36253 eng eng Asociación Argentina de Mecánica Computacional info:eu-repo/semantics/altIdentifier/url/http://www.cimec.org.ar/ojs/index.php/mc/article/viewFile/902 http://hdl.handle.net/11336/36253 Palma, Elbio Daniel; Matano, Ricardo; Piola, Alberto Ricardo; Modeling the Brazil ?Malvinas Confluence: Model Configuration; Asociación Argentina de Mecánica Computacional; Mecánica Computacional; XXI; 5; 10-2002; 443-461 2591-3522 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ Ocean Models Open Boundary Conditions Brazil-Malvinas Confluence https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet 2023-09-24T19:56:22Z The upper ocean circulation near the western margin of the South Atlantic Ocean is dominated by the southward flow of the warm and salty Brazil Current and the northward flow of the cold and relatively fresh Malvinas Current. The collision, near 38 o S, of the two jets produces a strong frontal zone known as the Brazil-Malvinas Confluence (BMC). The BMC is populated with eddies and meanders and is known to be one of the most energetic areas of the world oceans (Chelton et al) [1] . In this article we describe the numerical strategies used to implement a regional, eddy resolving, three-dimensional numerical model of the BMC. The numerical experiments consisted of integrations using idealized set-ups and experiments with a realistic basin configuration. The experiments in idealized basins were used to test the numerical implementation of open boundary conditions in a dynamical setting that includes both passive and active lateral boundaries. The simulations in a realistic basin ere forced with climatological wind stress and heat fluxes at the surface and mass and heat fluxes extracted from global simulations across the lateral boundaries. The numerical results so obtained appear to reproduce the general features observed in hydrographic and remote sensed data, including the observed mean position of the BMC and volume transports of the boundary currents, and the development of warm intrusion eddies. Fil: Palma, Elbio Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina. Universidad Nacional del Sur. Departamento de Física; Argentina Fil: Matano, Ricardo. State University of Oregon; Estados Unidos Fil: Piola, Alberto Ricardo. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina Article in Journal/Newspaper South Atlantic Ocean CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Argentina Argentino Ricardo ENVELOPE(-63.033,-63.033,-64.867,-64.867) |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
Ocean Models Open Boundary Conditions Brazil-Malvinas Confluence https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
spellingShingle |
Ocean Models Open Boundary Conditions Brazil-Malvinas Confluence https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 Palma, Elbio Daniel Matano, Ricardo Piola, Alberto Ricardo Modeling the Brazil ?Malvinas Confluence: Model Configuration |
topic_facet |
Ocean Models Open Boundary Conditions Brazil-Malvinas Confluence https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
description |
The upper ocean circulation near the western margin of the South Atlantic Ocean is dominated by the southward flow of the warm and salty Brazil Current and the northward flow of the cold and relatively fresh Malvinas Current. The collision, near 38 o S, of the two jets produces a strong frontal zone known as the Brazil-Malvinas Confluence (BMC). The BMC is populated with eddies and meanders and is known to be one of the most energetic areas of the world oceans (Chelton et al) [1] . In this article we describe the numerical strategies used to implement a regional, eddy resolving, three-dimensional numerical model of the BMC. The numerical experiments consisted of integrations using idealized set-ups and experiments with a realistic basin configuration. The experiments in idealized basins were used to test the numerical implementation of open boundary conditions in a dynamical setting that includes both passive and active lateral boundaries. The simulations in a realistic basin ere forced with climatological wind stress and heat fluxes at the surface and mass and heat fluxes extracted from global simulations across the lateral boundaries. The numerical results so obtained appear to reproduce the general features observed in hydrographic and remote sensed data, including the observed mean position of the BMC and volume transports of the boundary currents, and the development of warm intrusion eddies. Fil: Palma, Elbio Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina. Universidad Nacional del Sur. Departamento de Física; Argentina Fil: Matano, Ricardo. State University of Oregon; Estados Unidos Fil: Piola, Alberto Ricardo. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina |
format |
Article in Journal/Newspaper |
author |
Palma, Elbio Daniel Matano, Ricardo Piola, Alberto Ricardo |
author_facet |
Palma, Elbio Daniel Matano, Ricardo Piola, Alberto Ricardo |
author_sort |
Palma, Elbio Daniel |
title |
Modeling the Brazil ?Malvinas Confluence: Model Configuration |
title_short |
Modeling the Brazil ?Malvinas Confluence: Model Configuration |
title_full |
Modeling the Brazil ?Malvinas Confluence: Model Configuration |
title_fullStr |
Modeling the Brazil ?Malvinas Confluence: Model Configuration |
title_full_unstemmed |
Modeling the Brazil ?Malvinas Confluence: Model Configuration |
title_sort |
modeling the brazil ?malvinas confluence: model configuration |
publisher |
Asociación Argentina de Mecánica Computacional |
url |
http://hdl.handle.net/11336/36253 |
long_lat |
ENVELOPE(-63.033,-63.033,-64.867,-64.867) |
geographic |
Argentina Argentino Ricardo |
geographic_facet |
Argentina Argentino Ricardo |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_relation |
info:eu-repo/semantics/altIdentifier/url/http://www.cimec.org.ar/ojs/index.php/mc/article/viewFile/902 http://hdl.handle.net/11336/36253 Palma, Elbio Daniel; Matano, Ricardo; Piola, Alberto Ricardo; Modeling the Brazil ?Malvinas Confluence: Model Configuration; Asociación Argentina de Mecánica Computacional; Mecánica Computacional; XXI; 5; 10-2002; 443-461 2591-3522 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
_version_ |
1779320196958257152 |