Fronts of the Malvinas Current System: Surface and Subsurface Expressions Revealed by Satellite Altimetry, Argo Floats, and Mercator Operational Model Outputs

Autores
Artana, Camila Indira; Lellouche, Jean Michel; Park, Young Hyang; Garric, Gilles; Koenig, Zoé; Sennéchael, Nathalie; Ferrari, Ramiro; Piola, Alberto Ricardo; Saraceno, Martin; Provost, Christine
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We examine the surface and subsurface signature of ocean fronts closely associated with the Malvinas Current dynamics. We first evaluate the performances of the Mercator Ocean eddy permitting (1/12° spatial resolution) global operational system in the southwestern Atlantic Ocean over the last 10 years (2007–2016) using satellite, Argo float and in situ data collected near 41°S. Observations versus model comparisons show that the model correctly reproduces the general circulation and the complex hydrographic features of the study area including the vicinity of the Brazil-Malvinas Confluence. The model outputs accurately match the observations except in June 2015. The causes for the June 2015 mismatch are analyzed. We then used the model and satellite altimetry to identify isolines of absolute dynamic topography (ADT) and potential density at different depths associated with the mean front location and establish their correspondence with specific water mass boundaries. Frontal displacements as depicted in satellite ADT, model ADT, and model potential density at 450 m are in general agreement. The ADT and potential density at 450 m provide nonidentical and complementary information on eddies shed by the Polar Front (PF): while ADT depicts the surface circulation with PF eddies entrained into the energetic circulation over the deep Argentine Basin, potential density at 450 m is more effective at monitoring PF eddies feeding the Malvinas Current.
Fil: Artana, Camila Indira. Centre National de la Recherche Scientifique; Francia. Muséum National d'Histoire Naturelle; Francia. Universite Pierre et Marie Curie; Francia
Fil: Lellouche, Jean Michel. Mercator Ocean; Francia. Centre National de la Recherche Scientifique; Francia
Fil: Park, Young Hyang. Centre National de la Recherche Scientifique; Francia. Muséum National d'Histoire Naturelle; Francia. Universite Pierre et Marie Curie; Francia
Fil: Garric, Gilles. Centre National de la Recherche Scientifique; Francia. Mercator Ocean; Francia
Fil: Koenig, Zoé. Centre National de la Recherche Scientifique; Francia. Muséum National d'Histoire Naturelle; Francia. Universite Pierre et Marie Curie; Francia
Fil: Sennéchael, Nathalie. Muséum National d'Histoire Naturelle; Francia. Universite Pierre et Marie Curie; Francia. Centre National de la Recherche Scientifique; Francia
Fil: Ferrari, Ramiro. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones del Mar y la Atmósfera. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones del Mar y la Atmósfera; Argentina
Fil: Piola, Alberto Ricardo. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Saraceno, Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones del Mar y la Atmósfera. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones del Mar y la Atmósfera; Argentina
Fil: Provost, Christine. Universite Pierre et Marie Curie; Francia. Centre National de la Recherche Scientifique; Francia. Muséum National d'Histoire Naturelle; Francia
Materia
ARGO FLOATS
FRONTS
MALVINAS CURRENT
MERCATOR OPERATIONAL MODEL
POTENTIAL DENSITY
SATELLITE ALTIMETRY
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/96705
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/96705
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Fronts of the Malvinas Current System: Surface and Subsurface Expressions Revealed by Satellite Altimetry, Argo Floats, and Mercator Operational Model OutputsArtana, Camila IndiraLellouche, Jean MichelPark, Young HyangGarric, GillesKoenig, ZoéSennéchael, NathalieFerrari, RamiroPiola, Alberto RicardoSaraceno, MartinProvost, ChristineARGO FLOATSFRONTSMALVINAS CURRENTMERCATOR OPERATIONAL MODELPOTENTIAL DENSITYSATELLITE ALTIMETRYhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1We examine the surface and subsurface signature of ocean fronts closely associated with the Malvinas Current dynamics. We first evaluate the performances of the Mercator Ocean eddy permitting (1/12° spatial resolution) global operational system in the southwestern Atlantic Ocean over the last 10 years (2007–2016) using satellite, Argo float and in situ data collected near 41°S. Observations versus model comparisons show that the model correctly reproduces the general circulation and the complex hydrographic features of the study area including the vicinity of the Brazil-Malvinas Confluence. The model outputs accurately match the observations except in June 2015. The causes for the June 2015 mismatch are analyzed. We then used the model and satellite altimetry to identify isolines of absolute dynamic topography (ADT) and potential density at different depths associated with the mean front location and establish their correspondence with specific water mass boundaries. Frontal displacements as depicted in satellite ADT, model ADT, and model potential density at 450 m are in general agreement. The ADT and potential density at 450 m provide nonidentical and complementary information on eddies shed by the Polar Front (PF): while ADT depicts the surface circulation with PF eddies entrained into the energetic circulation over the deep Argentine Basin, potential density at 450 m is more effective at monitoring PF eddies feeding the Malvinas Current.Fil: Artana, Camila Indira. Centre National de la Recherche Scientifique; Francia. Muséum National d'Histoire Naturelle; Francia. Universite Pierre et Marie Curie; FranciaFil: Lellouche, Jean Michel. Mercator Ocean; Francia. Centre National de la Recherche Scientifique; FranciaFil: Park, Young Hyang. Centre National de la Recherche Scientifique; Francia. Muséum National d'Histoire Naturelle; Francia. Universite Pierre et Marie Curie; FranciaFil: Garric, Gilles. Centre National de la Recherche Scientifique; Francia. Mercator Ocean; FranciaFil: Koenig, Zoé. Centre National de la Recherche Scientifique; Francia. Muséum National d'Histoire Naturelle; Francia. Universite Pierre et Marie Curie; FranciaFil: Sennéchael, Nathalie. Muséum National d'Histoire Naturelle; Francia. Universite Pierre et Marie Curie; Francia. Centre National de la Recherche Scientifique; FranciaFil: Ferrari, Ramiro. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones del Mar y la Atmósfera. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones del Mar y la Atmósfera; ArgentinaFil: Piola, Alberto Ricardo. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Saraceno, Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones del Mar y la Atmósfera. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones del Mar y la Atmósfera; ArgentinaFil: Provost, Christine. Universite Pierre et Marie Curie; Francia. Centre National de la Recherche Scientifique; Francia. Muséum National d'Histoire Naturelle; FranciaAmerican Geophysical Union2018-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/96705Artana, Camila Indira; Lellouche, Jean Michel; Park, Young Hyang; Garric, Gilles; Koenig, Zoé; et al.; Fronts of the Malvinas Current System: Surface and Subsurface Expressions Revealed by Satellite Altimetry, Argo Floats, and Mercator Operational Model Outputs; American Geophysical Union; Journal of Geophysical Research: Oceans; 123; 8; 8-2018; 5261-52852169-9291CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://doi.wiley.com/10.1029/2018JC013887info:eu-repo/semantics/altIdentifier/doi/10.1029/2018JC013887info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:13:30Zoai:ri.conicet.gov.ar:11336/96705instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-10 13:13:30.324CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Fronts of the Malvinas Current System: Surface and Subsurface Expressions Revealed by Satellite Altimetry, Argo Floats, and Mercator Operational Model Outputs
title Fronts of the Malvinas Current System: Surface and Subsurface Expressions Revealed by Satellite Altimetry, Argo Floats, and Mercator Operational Model Outputs
spellingShingle Fronts of the Malvinas Current System: Surface and Subsurface Expressions Revealed by Satellite Altimetry, Argo Floats, and Mercator Operational Model Outputs
Artana, Camila Indira
ARGO FLOATS
FRONTS
MALVINAS CURRENT
MERCATOR OPERATIONAL MODEL
POTENTIAL DENSITY
SATELLITE ALTIMETRY
title_short Fronts of the Malvinas Current System: Surface and Subsurface Expressions Revealed by Satellite Altimetry, Argo Floats, and Mercator Operational Model Outputs
title_full Fronts of the Malvinas Current System: Surface and Subsurface Expressions Revealed by Satellite Altimetry, Argo Floats, and Mercator Operational Model Outputs
title_fullStr Fronts of the Malvinas Current System: Surface and Subsurface Expressions Revealed by Satellite Altimetry, Argo Floats, and Mercator Operational Model Outputs
title_full_unstemmed Fronts of the Malvinas Current System: Surface and Subsurface Expressions Revealed by Satellite Altimetry, Argo Floats, and Mercator Operational Model Outputs
title_sort Fronts of the Malvinas Current System: Surface and Subsurface Expressions Revealed by Satellite Altimetry, Argo Floats, and Mercator Operational Model Outputs
dc.creator.none.fl_str_mv Artana, Camila Indira
Lellouche, Jean Michel
Park, Young Hyang
Garric, Gilles
Koenig, Zoé
Sennéchael, Nathalie
Ferrari, Ramiro
Piola, Alberto Ricardo
Saraceno, Martin
Provost, Christine
author Artana, Camila Indira
author_facet Artana, Camila Indira
Lellouche, Jean Michel
Park, Young Hyang
Garric, Gilles
Koenig, Zoé
Sennéchael, Nathalie
Ferrari, Ramiro
Piola, Alberto Ricardo
Saraceno, Martin
Provost, Christine
author_role author
author2 Lellouche, Jean Michel
Park, Young Hyang
Garric, Gilles
Koenig, Zoé
Sennéchael, Nathalie
Ferrari, Ramiro
Piola, Alberto Ricardo
Saraceno, Martin
Provost, Christine
author2_role author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv ARGO FLOATS
FRONTS
MALVINAS CURRENT
MERCATOR OPERATIONAL MODEL
POTENTIAL DENSITY
SATELLITE ALTIMETRY
topic ARGO FLOATS
FRONTS
MALVINAS CURRENT
MERCATOR OPERATIONAL MODEL
POTENTIAL DENSITY
SATELLITE ALTIMETRY
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We examine the surface and subsurface signature of ocean fronts closely associated with the Malvinas Current dynamics. We first evaluate the performances of the Mercator Ocean eddy permitting (1/12° spatial resolution) global operational system in the southwestern Atlantic Ocean over the last 10 years (2007–2016) using satellite, Argo float and in situ data collected near 41°S. Observations versus model comparisons show that the model correctly reproduces the general circulation and the complex hydrographic features of the study area including the vicinity of the Brazil-Malvinas Confluence. The model outputs accurately match the observations except in June 2015. The causes for the June 2015 mismatch are analyzed. We then used the model and satellite altimetry to identify isolines of absolute dynamic topography (ADT) and potential density at different depths associated with the mean front location and establish their correspondence with specific water mass boundaries. Frontal displacements as depicted in satellite ADT, model ADT, and model potential density at 450 m are in general agreement. The ADT and potential density at 450 m provide nonidentical and complementary information on eddies shed by the Polar Front (PF): while ADT depicts the surface circulation with PF eddies entrained into the energetic circulation over the deep Argentine Basin, potential density at 450 m is more effective at monitoring PF eddies feeding the Malvinas Current.
Fil: Artana, Camila Indira. Centre National de la Recherche Scientifique; Francia. Muséum National d'Histoire Naturelle; Francia. Universite Pierre et Marie Curie; Francia
Fil: Lellouche, Jean Michel. Mercator Ocean; Francia. Centre National de la Recherche Scientifique; Francia
Fil: Park, Young Hyang. Centre National de la Recherche Scientifique; Francia. Muséum National d'Histoire Naturelle; Francia. Universite Pierre et Marie Curie; Francia
Fil: Garric, Gilles. Centre National de la Recherche Scientifique; Francia. Mercator Ocean; Francia
Fil: Koenig, Zoé. Centre National de la Recherche Scientifique; Francia. Muséum National d'Histoire Naturelle; Francia. Universite Pierre et Marie Curie; Francia
Fil: Sennéchael, Nathalie. Muséum National d'Histoire Naturelle; Francia. Universite Pierre et Marie Curie; Francia. Centre National de la Recherche Scientifique; Francia
Fil: Ferrari, Ramiro. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones del Mar y la Atmósfera. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones del Mar y la Atmósfera; Argentina
Fil: Piola, Alberto Ricardo. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Saraceno, Martin. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones del Mar y la Atmósfera. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones del Mar y la Atmósfera; Argentina
Fil: Provost, Christine. Universite Pierre et Marie Curie; Francia. Centre National de la Recherche Scientifique; Francia. Muséum National d'Histoire Naturelle; Francia
description We examine the surface and subsurface signature of ocean fronts closely associated with the Malvinas Current dynamics. We first evaluate the performances of the Mercator Ocean eddy permitting (1/12° spatial resolution) global operational system in the southwestern Atlantic Ocean over the last 10 years (2007–2016) using satellite, Argo float and in situ data collected near 41°S. Observations versus model comparisons show that the model correctly reproduces the general circulation and the complex hydrographic features of the study area including the vicinity of the Brazil-Malvinas Confluence. The model outputs accurately match the observations except in June 2015. The causes for the June 2015 mismatch are analyzed. We then used the model and satellite altimetry to identify isolines of absolute dynamic topography (ADT) and potential density at different depths associated with the mean front location and establish their correspondence with specific water mass boundaries. Frontal displacements as depicted in satellite ADT, model ADT, and model potential density at 450 m are in general agreement. The ADT and potential density at 450 m provide nonidentical and complementary information on eddies shed by the Polar Front (PF): while ADT depicts the surface circulation with PF eddies entrained into the energetic circulation over the deep Argentine Basin, potential density at 450 m is more effective at monitoring PF eddies feeding the Malvinas Current.
publishDate 2018
dc.date.none.fl_str_mv 2018-08
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/96705
Artana, Camila Indira; Lellouche, Jean Michel; Park, Young Hyang; Garric, Gilles; Koenig, Zoé; et al.; Fronts of the Malvinas Current System: Surface and Subsurface Expressions Revealed by Satellite Altimetry, Argo Floats, and Mercator Operational Model Outputs; American Geophysical Union; Journal of Geophysical Research: Oceans; 123; 8; 8-2018; 5261-5285
2169-9291
CONICET Digital
CONICET
url http://hdl.handle.net/11336/96705
identifier_str_mv Artana, Camila Indira; Lellouche, Jean Michel; Park, Young Hyang; Garric, Gilles; Koenig, Zoé; et al.; Fronts of the Malvinas Current System: Surface and Subsurface Expressions Revealed by Satellite Altimetry, Argo Floats, and Mercator Operational Model Outputs; American Geophysical Union; Journal of Geophysical Research: Oceans; 123; 8; 8-2018; 5261-5285
2169-9291
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://doi.wiley.com/10.1029/2018JC013887
info:eu-repo/semantics/altIdentifier/doi/10.1029/2018JC013887
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Geophysical Union
publisher.none.fl_str_mv American Geophysical Union
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.993085

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