Malvinas-slope water intrusions on the northern Patagonia continental shelf

Autores
Piola, Alberto Ricardo; Martínez Avellaneda, N.; Guerrero, Raul Alfredo; Jardon, Fernanda Paola; Palma, Elbio Daniel; Romero, Silvia Inés
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Patagonia continental shelf located off southeastern South America is bounded offshore by the Malvinas Current, which extends northward from northern Drake Passage (∼55deg; S) to nearly 38deg; S. The transition between relatively warm-fresh shelf waters and Subantarctic Waters from the western boundary current is characterized by a thermohaline front extending nearly 2500 km. We use satellite derived sea surface temperature, and chlorophyll-a data combined with hydrographic and surface drifter data to document the intrusions of slope waters onto the continental shelf near 41deg; S. These intrusions create vertically coherent localized negative temperature and positive salinity anomalies extending onshore about 150 km from the shelf break. The region is associated with a center of action of the first mode of non-seasonal sea surface temperature variability and also relatively high chlorophyll-a variability, suggesting that the intrusions are important in promoting the local development of phytoplankton. The generation of slope water penetrations at this location may be triggered by the inshore excursion of the 100 m isobath, which appears to steer the Malvinas Current waters over the outer shelf.
Fil: Piola, Alberto Ricardo. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval. Departamento Oceanografía; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina
Fil: Martínez Avellaneda, N.. Universitat Hamburg; Alemania
Fil: Guerrero, Raul Alfredo. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
Fil: Jardón, F. P.. Universite de Paris VI; Francia
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: Romero, Silvia Inés. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval. Departamento Oceanografía; Argentina
Materia
Malvinas Current
Slope Water
Intrusions
Patagonian Continental Shelf
Malvinas Current
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/93108
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/93108
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network_name_str CONICET Digital (CONICET)
spelling Malvinas-slope water intrusions on the northern Patagonia continental shelfPiola, Alberto RicardoMartínez Avellaneda, N.Guerrero, Raul AlfredoJardon, Fernanda PaolaPalma, Elbio DanielRomero, Silvia InésMalvinas CurrentSlope WaterIntrusionsPatagonian Continental ShelfMalvinas Currenthttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Patagonia continental shelf located off southeastern South America is bounded offshore by the Malvinas Current, which extends northward from northern Drake Passage (∼55deg; S) to nearly 38deg; S. The transition between relatively warm-fresh shelf waters and Subantarctic Waters from the western boundary current is characterized by a thermohaline front extending nearly 2500 km. We use satellite derived sea surface temperature, and chlorophyll-a data combined with hydrographic and surface drifter data to document the intrusions of slope waters onto the continental shelf near 41deg; S. These intrusions create vertically coherent localized negative temperature and positive salinity anomalies extending onshore about 150 km from the shelf break. The region is associated with a center of action of the first mode of non-seasonal sea surface temperature variability and also relatively high chlorophyll-a variability, suggesting that the intrusions are important in promoting the local development of phytoplankton. The generation of slope water penetrations at this location may be triggered by the inshore excursion of the 100 m isobath, which appears to steer the Malvinas Current waters over the outer shelf.Fil: Piola, Alberto Ricardo. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval. Departamento Oceanografía; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; ArgentinaFil: Martínez Avellaneda, N.. Universitat Hamburg; AlemaniaFil: Guerrero, Raul Alfredo. Instituto Nacional de Investigaciones y Desarrollo Pesquero; ArgentinaFil: Jardón, F. P.. Universite de Paris VI; FranciaFil: 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; ArgentinaFil: Romero, Silvia Inés. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval. Departamento Oceanografía; ArgentinaCopernicus Publications2010-03-08info: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/11336/93108Piola, Alberto Ricardo; Martínez Avellaneda, N.; Guerrero, Raul Alfredo; Jardon, Fernanda Paola; Palma, Elbio Daniel; et al.; Malvinas-slope water intrusions on the northern Patagonia continental shelf; Copernicus Publications; Ocean Science (os); 6; 1; 8-3-2010; 345-3591812-0792CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.ocean-sci.net/6/345/2010/info:eu-repo/semantics/altIdentifier/doi/10.5194/os-6-345-2010info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:11:59Zoai:ri.conicet.gov.ar:11336/93108instacron: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:34982025-09-29 10:12:00.172CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Malvinas-slope water intrusions on the northern Patagonia continental shelf
title Malvinas-slope water intrusions on the northern Patagonia continental shelf
spellingShingle Malvinas-slope water intrusions on the northern Patagonia continental shelf
Piola, Alberto Ricardo
Malvinas Current
Slope Water
Intrusions
Patagonian Continental Shelf
Malvinas Current
title_short Malvinas-slope water intrusions on the northern Patagonia continental shelf
title_full Malvinas-slope water intrusions on the northern Patagonia continental shelf
title_fullStr Malvinas-slope water intrusions on the northern Patagonia continental shelf
title_full_unstemmed Malvinas-slope water intrusions on the northern Patagonia continental shelf
title_sort Malvinas-slope water intrusions on the northern Patagonia continental shelf
dc.creator.none.fl_str_mv Piola, Alberto Ricardo
Martínez Avellaneda, N.
Guerrero, Raul Alfredo
Jardon, Fernanda Paola
Palma, Elbio Daniel
Romero, Silvia Inés
author Piola, Alberto Ricardo
author_facet Piola, Alberto Ricardo
Martínez Avellaneda, N.
Guerrero, Raul Alfredo
Jardon, Fernanda Paola
Palma, Elbio Daniel
Romero, Silvia Inés
author_role author
author2 Martínez Avellaneda, N.
Guerrero, Raul Alfredo
Jardon, Fernanda Paola
Palma, Elbio Daniel
Romero, Silvia Inés
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Malvinas Current
Slope Water
Intrusions
Patagonian Continental Shelf
Malvinas Current
topic Malvinas Current
Slope Water
Intrusions
Patagonian Continental Shelf
Malvinas Current
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The Patagonia continental shelf located off southeastern South America is bounded offshore by the Malvinas Current, which extends northward from northern Drake Passage (∼55deg; S) to nearly 38deg; S. The transition between relatively warm-fresh shelf waters and Subantarctic Waters from the western boundary current is characterized by a thermohaline front extending nearly 2500 km. We use satellite derived sea surface temperature, and chlorophyll-a data combined with hydrographic and surface drifter data to document the intrusions of slope waters onto the continental shelf near 41deg; S. These intrusions create vertically coherent localized negative temperature and positive salinity anomalies extending onshore about 150 km from the shelf break. The region is associated with a center of action of the first mode of non-seasonal sea surface temperature variability and also relatively high chlorophyll-a variability, suggesting that the intrusions are important in promoting the local development of phytoplankton. The generation of slope water penetrations at this location may be triggered by the inshore excursion of the 100 m isobath, which appears to steer the Malvinas Current waters over the outer shelf.
Fil: Piola, Alberto Ricardo. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval. Departamento Oceanografía; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina
Fil: Martínez Avellaneda, N.. Universitat Hamburg; Alemania
Fil: Guerrero, Raul Alfredo. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
Fil: Jardón, F. P.. Universite de Paris VI; Francia
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: Romero, Silvia Inés. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias de la Atmósfera y los Océanos; Argentina. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval. Departamento Oceanografía; Argentina
description The Patagonia continental shelf located off southeastern South America is bounded offshore by the Malvinas Current, which extends northward from northern Drake Passage (∼55deg; S) to nearly 38deg; S. The transition between relatively warm-fresh shelf waters and Subantarctic Waters from the western boundary current is characterized by a thermohaline front extending nearly 2500 km. We use satellite derived sea surface temperature, and chlorophyll-a data combined with hydrographic and surface drifter data to document the intrusions of slope waters onto the continental shelf near 41deg; S. These intrusions create vertically coherent localized negative temperature and positive salinity anomalies extending onshore about 150 km from the shelf break. The region is associated with a center of action of the first mode of non-seasonal sea surface temperature variability and also relatively high chlorophyll-a variability, suggesting that the intrusions are important in promoting the local development of phytoplankton. The generation of slope water penetrations at this location may be triggered by the inshore excursion of the 100 m isobath, which appears to steer the Malvinas Current waters over the outer shelf.
publishDate 2010
dc.date.none.fl_str_mv 2010-03-08
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/11336/93108
Piola, Alberto Ricardo; Martínez Avellaneda, N.; Guerrero, Raul Alfredo; Jardon, Fernanda Paola; Palma, Elbio Daniel; et al.; Malvinas-slope water intrusions on the northern Patagonia continental shelf; Copernicus Publications; Ocean Science (os); 6; 1; 8-3-2010; 345-359
1812-0792
CONICET Digital
CONICET
url http://hdl.handle.net/11336/93108
identifier_str_mv Piola, Alberto Ricardo; Martínez Avellaneda, N.; Guerrero, Raul Alfredo; Jardon, Fernanda Paola; Palma, Elbio Daniel; et al.; Malvinas-slope water intrusions on the northern Patagonia continental shelf; Copernicus Publications; Ocean Science (os); 6; 1; 8-3-2010; 345-359
1812-0792
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://www.ocean-sci.net/6/345/2010/
info:eu-repo/semantics/altIdentifier/doi/10.5194/os-6-345-2010
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 Copernicus Publications
publisher.none.fl_str_mv Copernicus Publications
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 13.070432

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