A view of the Brazil-Malvinas confluence, March 2015

Orúe Echevarría, Dorleta; Pelegrí, Josep L.; Alonso González, Iván J.; Benítez Barrios, Verónica M.; Emelianov, Mikhail; García Olivares, Antonio; Gasser i Rubinat, Marc; De La Fuente, Patricia; Herrero, Carmen; Isern Fontanet, Jordi; Masdeu Navarro, Marta; Peña Izquierdo, Jesús; Piola, Alberto Ricardo; Ramírez Garrido, Sergio; Rosell Fieschi, Miquel; Salvador, Joaquín; Saraceno, Martin; Valla, Daniel; Vallès Casanova, Ignasi; Vidal, Montserrat

A view of the Brazil-Malvinas confluence, March 2015

The encountering of the subtropical Brazil Current (BC) and the subantarctic Malvinas Current (MC) along the western margin of the Argentine Basin forms the Brazil-Malvinas Confluence (BMC), one of the most intense open-ocean fronts in the world ocean and a site for the formation of intermediate wat...

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Autores:	Orúe Echevarría, Dorleta, Pelegrí, Josep L., Alonso González, Iván J., Benítez Barrios, Verónica M., Emelianov, Mikhail, García Olivares, Antonio, Gasser i Rubinat, Marc, De La Fuente, Patricia, Herrero, Carmen, Isern Fontanet, Jordi, Masdeu Navarro, Marta, Peña Izquierdo, Jesús, Piola, Alberto Ricardo, Ramírez Garrido, Sergio, Rosell Fieschi, Miquel, Salvador, Joaquín, Saraceno, Martin, Valla, Daniel, Vallès Casanova, Ignasi, Vidal, Montserrat
Tipo de recurso:	artículo
Estado:	Versión publicada
Fecha de publicación:	2021
País:	Argentina
Institución:	Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:	CONICET Digital (CONICET)
Idioma:	inglés
OAI Identifier:	oai:ri.conicet.gov.ar:11336/155427
Acceso en línea:	http://hdl.handle.net/11336/155427
Access Level:	acceso abierto
Palabra clave:	BRAZIL-MALVINAS CONFLUENCE OCEAN CURRENTS RIVER PLUME AGEOSTROPHIC VELOCITY LAGRANGIAN DESCRIPTION HYDROGRAPHIC DATA https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1

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network_acronym_str	AR
network_name_str	Argentina
repository_id_str
dc.title.none.fl_str_mv	A view of the Brazil-Malvinas confluence, March 2015
title	A view of the Brazil-Malvinas confluence, March 2015
spellingShingle	A view of the Brazil-Malvinas confluence, March 2015 Orúe Echevarría, Dorleta BRAZIL-MALVINAS CONFLUENCE OCEAN CURRENTS RIVER PLUME AGEOSTROPHIC VELOCITY LAGRANGIAN DESCRIPTION HYDROGRAPHIC DATA https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1
title_short	A view of the Brazil-Malvinas confluence, March 2015
title_full	A view of the Brazil-Malvinas confluence, March 2015
title_fullStr	A view of the Brazil-Malvinas confluence, March 2015
title_full_unstemmed	A view of the Brazil-Malvinas confluence, March 2015
title_sort	A view of the Brazil-Malvinas confluence, March 2015
dc.creator.none.fl_str_mv	Orúe Echevarría, Dorleta Pelegrí, Josep L. Alonso González, Iván J. Benítez Barrios, Verónica M. Emelianov, Mikhail García Olivares, Antonio Gasser i Rubinat, Marc De La Fuente, Patricia Herrero, Carmen Isern Fontanet, Jordi Masdeu Navarro, Marta Peña Izquierdo, Jesús Piola, Alberto Ricardo Ramírez Garrido, Sergio Rosell Fieschi, Miquel Salvador, Joaquín Saraceno, Martin Valla, Daniel Vallès Casanova, Ignasi Vidal, Montserrat
author	Orúe Echevarría, Dorleta
author_facet	Orúe Echevarría, Dorleta Pelegrí, Josep L. Alonso González, Iván J. Benítez Barrios, Verónica M. Emelianov, Mikhail García Olivares, Antonio Gasser i Rubinat, Marc De La Fuente, Patricia Herrero, Carmen Isern Fontanet, Jordi Masdeu Navarro, Marta Peña Izquierdo, Jesús Piola, Alberto Ricardo Ramírez Garrido, Sergio Rosell Fieschi, Miquel Salvador, Joaquín Saraceno, Martin Valla, Daniel Vallès Casanova, Ignasi Vidal, Montserrat
author_role	author
author2	Pelegrí, Josep L. Alonso González, Iván J. Benítez Barrios, Verónica M. Emelianov, Mikhail García Olivares, Antonio Gasser i Rubinat, Marc De La Fuente, Patricia Herrero, Carmen Isern Fontanet, Jordi Masdeu Navarro, Marta Peña Izquierdo, Jesús Piola, Alberto Ricardo Ramírez Garrido, Sergio Rosell Fieschi, Miquel Salvador, Joaquín Saraceno, Martin Valla, Daniel Vallès Casanova, Ignasi Vidal, Montserrat
author2_role	author author author author author author author author author author author author author author author author author author author
dc.subject.none.fl_str_mv	BRAZIL-MALVINAS CONFLUENCE OCEAN CURRENTS RIVER PLUME AGEOSTROPHIC VELOCITY LAGRANGIAN DESCRIPTION HYDROGRAPHIC DATA https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1
topic	BRAZIL-MALVINAS CONFLUENCE OCEAN CURRENTS RIVER PLUME AGEOSTROPHIC VELOCITY LAGRANGIAN DESCRIPTION HYDROGRAPHIC DATA https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1
description	The encountering of the subtropical Brazil Current (BC) and the subantarctic Malvinas Current (MC) along the western margin of the Argentine Basin forms the Brazil-Malvinas Confluence (BMC), one of the most intense open-ocean fronts in the world ocean and a site for the formation of intermediate water masses. Here, we provide a comprehensive description of the BMC based on physical and biogeochemical data – hydrographic stations, profiling floats and subsurface drifters – gathered in March 2015. We use these data in order to characterize the impinging and outflowing currents and to describe the cross- and along-frontal thermohaline structure. In addition, we compare the in-situ measurements with both climatological data and the Mercator Ocean eddy-resolving reanalysis. The hydrographic sections illustrate the contrasting properties between the two western boundary currents: warm, salty, nutrient- and oxygen-poor oligotrophic subtropical waters carried southward by the BC and the cold, fresh, oxygen- and nutrient-rich subantarctic waters carried northward by the MC. The frontal system is also characterized by the presence of thermohaline intrusions, with the cross-frontal gradients and along-front velocities sharpening as the colliding currents shape the frontal system. We also observe brackish waters spreading on top of the frontal jet as a result of both the confluence dynamics and off-shelf advection favored by north-easterly winds. These low-salinity waters are positively correlated with surface ageostrophic speeds over the frontal jet. The cruise data illustrates the high regional and mesoscale variability as compared with climatological conditions, and further document the submesoscale subsurface complexity, which is not properly captured by available operational models.
publishDate	2021
dc.date.none.fl_str_mv	2021-04
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/11336/155427 Orúe Echevarría, Dorleta; Pelegrí, Josep L.; Alonso González, Iván J.; Benítez Barrios, Verónica M.; Emelianov, Mikhail; et al.; A view of the Brazil-Malvinas confluence, March 2015; Elsevier; Deep Sea Research Part I: Oceanographic Research Papers; 172; 4-2021; 1-55 0967-0637 CONICET Digital CONICET
url	http://hdl.handle.net/11336/155427
identifier_str_mv	Orúe Echevarría, Dorleta; Pelegrí, Josep L.; Alonso González, Iván J.; Benítez Barrios, Verónica M.; Emelianov, Mikhail; et al.; A view of the Brazil-Malvinas confluence, March 2015; Elsevier; Deep Sea Research Part I: Oceanographic Research Papers; 172; 4-2021; 1-55 0967-0637 CONICET Digital CONICET
dc.language.none.fl_str_mv	eng
language	eng
dc.relation.none.fl_str_mv	info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0967063721000728 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.dsr.2021.103533
dc.rights.none.fl_str_mv	info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv	openAccess
rights_invalid_str_mv	https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv	application/pdf application/pdf application/pdf application/pdf
dc.publisher.none.fl_str_mv	Elsevier
publisher.none.fl_str_mv	Elsevier
dc.source.none.fl_str_mv	reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str	Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str	CONICET Digital (CONICET)
collection	CONICET Digital (CONICET)
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
_version_	1799196342378037248
spelling	A view of the Brazil-Malvinas confluence, March 2015Orúe Echevarría, DorletaPelegrí, Josep L.Alonso González, Iván J.Benítez Barrios, Verónica M.Emelianov, MikhailGarcía Olivares, AntonioGasser i Rubinat, MarcDe La Fuente, PatriciaHerrero, CarmenIsern Fontanet, JordiMasdeu Navarro, MartaPeña Izquierdo, JesúsPiola, Alberto RicardoRamírez Garrido, SergioRosell Fieschi, MiquelSalvador, JoaquínSaraceno, MartinValla, DanielVallès Casanova, IgnasiVidal, MontserratBRAZIL-MALVINAS CONFLUENCEOCEAN CURRENTSRIVER PLUMEAGEOSTROPHIC VELOCITYLAGRANGIAN DESCRIPTIONHYDROGRAPHIC DATAhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The encountering of the subtropical Brazil Current (BC) and the subantarctic Malvinas Current (MC) along the western margin of the Argentine Basin forms the Brazil-Malvinas Confluence (BMC), one of the most intense open-ocean fronts in the world ocean and a site for the formation of intermediate water masses. Here, we provide a comprehensive description of the BMC based on physical and biogeochemical data – hydrographic stations, profiling floats and subsurface drifters – gathered in March 2015. We use these data in order to characterize the impinging and outflowing currents and to describe the cross- and along-frontal thermohaline structure. In addition, we compare the in-situ measurements with both climatological data and the Mercator Ocean eddy-resolving reanalysis. The hydrographic sections illustrate the contrasting properties between the two western boundary currents: warm, salty, nutrient- and oxygen-poor oligotrophic subtropical waters carried southward by the BC and the cold, fresh, oxygen- and nutrient-rich subantarctic waters carried northward by the MC. The frontal system is also characterized by the presence of thermohaline intrusions, with the cross-frontal gradients and along-front velocities sharpening as the colliding currents shape the frontal system. We also observe brackish waters spreading on top of the frontal jet as a result of both the confluence dynamics and off-shelf advection favored by north-easterly winds. These low-salinity waters are positively correlated with surface ageostrophic speeds over the frontal jet. The cruise data illustrates the high regional and mesoscale variability as compared with climatological conditions, and further document the submesoscale subsurface complexity, which is not properly captured by available operational models.Fil: Orúe Echevarría, Dorleta. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; EspañaFil: Pelegrí, Josep L.. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; EspañaFil: Alonso González, Iván J.. Oceomic, Marine Bio And Technology S.L; EspañaFil: Benítez Barrios, Verónica M.. Oceomic, Marine Bio And Technology S.L; EspañaFil: Emelianov, Mikhail. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; EspañaFil: García Olivares, Antonio. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; EspañaFil: Gasser i Rubinat, Marc. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; EspañaFil: De La Fuente, Patricia. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; EspañaFil: Herrero, Carmen. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; EspañaFil: Isern Fontanet, Jordi. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; EspañaFil: Masdeu Navarro, Marta. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; EspañaFil: Peña Izquierdo, Jesús. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; EspañaFil: Piola, Alberto Ricardo. 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: Ramírez Garrido, Sergio. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; EspañaFil: Rosell Fieschi, Miquel. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; EspañaFil: Salvador, Joaquín. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; EspañaFil: 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. Universidad de Barcelona; EspañaFil: Valla, Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; ArgentinaFil: Vallès Casanova, Ignasi. Consejo Superior de Investigaciones Científicas. Instituto de Ciencias del Mar; EspañaFil: Vidal, Montserrat. Universidad de Barcelona; EspañaElsevier2021-04info: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/11336/155427Orúe Echevarría, Dorleta; Pelegrí, Josep L.; Alonso González, Iván J.; Benítez Barrios, Verónica M.; Emelianov, Mikhail; et al.; A view of the Brazil-Malvinas confluence, March 2015; Elsevier; Deep Sea Research Part I: Oceanographic Research Papers; 172; 4-2021; 1-550967-0637CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0967063721000728info:eu-repo/semantics/altIdentifier/doi/10.1016/j.dsr.2021.103533info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T14:23:56Zoai:ri.conicet.gov.ar:11336/155427instacron: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:34982024-05-08 14:23:57.001CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
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A view of the Brazil-Malvinas confluence, March 2015

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