Dynamical analysis of the oceanic circulation in the Gulf of San Jorge, Argentina

Autores
Palma, Elbio Daniel; Matano, Ricardo; Tonini, Mariano Hernan; Martos, Patricia; Combes, Vincent
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This study identifies the dynamical mechanisms driving seasonal variations in oceanic circulation and water mass characteristics of the Gulf of San Jorge (GSJ) and its exchanges with the Patagonian Shelf (PS). A suite of process-oriented numerical experiments indicates that GSJ circulation is mainly driven by tidal forcing and modulated by wind forcing and intrusions from the PS. During late spring and summer, stratification decouples the upper and deeper layers of the gulf, leading to a shallow, wind-forced surface circulation and a deeper, density driven, cyclonic geostrophic flow. The subsurface circulation is induced by differential tidal mixing in coastal and deep areas and its intensity is strongly affected by the temporal variability of the atmospheric heat flux, which increases from spring to summer and fades from fall to winter. As stratification weakens, circulation patterns are replaced by wind-driven anticyclonic gyres in the south and an open cyclonic loop in the north. Passive tracer diagnostics show that in summer, surface and subsurface waters from the GSJ northern coast are exported and replaced by waters from the coastal portion of PS currents. The renewal of bottom waters is slower: A small portion upwells in the southwestern coast but most are ventilated by winter convection in the southern region and by intrusions of PS waters in the northern region.
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: Tonini, Mariano Hernan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; Argentina
Fil: Martos, Patricia. Universidad Nacional de Mar del Plata; Argentina. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
Fil: Combes, Vincent. State University of Oregon; Estados Unidos
Materia
CROSS-SHELF EXCHANGES
GULF OF SAN JORGE
NUMERICAL CIRCULATION MODEL
PATAGONIAN SHELF
SEASONAL VARIABILITY
TIDAL AND WIND FORCING
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/136441
Acceder
id CONICETDig_04be88cb4c3eecf794a5da23ca8c9c38
oai_identifier_str oai:ri.conicet.gov.ar:11336/136441
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Dynamical analysis of the oceanic circulation in the Gulf of San Jorge, ArgentinaPalma, Elbio DanielMatano, RicardoTonini, Mariano HernanMartos, PatriciaCombes, VincentCROSS-SHELF EXCHANGESGULF OF SAN JORGENUMERICAL CIRCULATION MODELPATAGONIAN SHELFSEASONAL VARIABILITYTIDAL AND WIND FORCINGhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1This study identifies the dynamical mechanisms driving seasonal variations in oceanic circulation and water mass characteristics of the Gulf of San Jorge (GSJ) and its exchanges with the Patagonian Shelf (PS). A suite of process-oriented numerical experiments indicates that GSJ circulation is mainly driven by tidal forcing and modulated by wind forcing and intrusions from the PS. During late spring and summer, stratification decouples the upper and deeper layers of the gulf, leading to a shallow, wind-forced surface circulation and a deeper, density driven, cyclonic geostrophic flow. The subsurface circulation is induced by differential tidal mixing in coastal and deep areas and its intensity is strongly affected by the temporal variability of the atmospheric heat flux, which increases from spring to summer and fades from fall to winter. As stratification weakens, circulation patterns are replaced by wind-driven anticyclonic gyres in the south and an open cyclonic loop in the north. Passive tracer diagnostics show that in summer, surface and subsurface waters from the GSJ northern coast are exported and replaced by waters from the coastal portion of PS currents. The renewal of bottom waters is slower: A small portion upwells in the southwestern coast but most are ventilated by winter convection in the southern region and by intrusions of PS waters in the northern region.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; ArgentinaFil: Matano, Ricardo. State University of Oregon; Estados UnidosFil: Tonini, Mariano Hernan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; ArgentinaFil: Martos, Patricia. Universidad Nacional de Mar del Plata; Argentina. Instituto Nacional de Investigaciones y Desarrollo Pesquero; ArgentinaFil: Combes, Vincent. State University of Oregon; Estados UnidosElsevier Science2020-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/136441Palma, Elbio Daniel; Matano, Ricardo; Tonini, Mariano Hernan; Martos, Patricia; Combes, Vincent; Dynamical analysis of the oceanic circulation in the Gulf of San Jorge, Argentina; Elsevier Science; Journal of Marine Systems; 203; 3-2020; 1-17; 1032610924-7963CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jmarsys.2019.103261info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0924796319303987info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:46:08Zoai:ri.conicet.gov.ar:11336/136441instacron: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:34982025-10-22 11:46:08.472CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Dynamical analysis of the oceanic circulation in the Gulf of San Jorge, Argentina
title Dynamical analysis of the oceanic circulation in the Gulf of San Jorge, Argentina
spellingShingle Dynamical analysis of the oceanic circulation in the Gulf of San Jorge, Argentina
Palma, Elbio Daniel
CROSS-SHELF EXCHANGES
GULF OF SAN JORGE
NUMERICAL CIRCULATION MODEL
PATAGONIAN SHELF
SEASONAL VARIABILITY
TIDAL AND WIND FORCING
title_short Dynamical analysis of the oceanic circulation in the Gulf of San Jorge, Argentina
title_full Dynamical analysis of the oceanic circulation in the Gulf of San Jorge, Argentina
title_fullStr Dynamical analysis of the oceanic circulation in the Gulf of San Jorge, Argentina
title_full_unstemmed Dynamical analysis of the oceanic circulation in the Gulf of San Jorge, Argentina
title_sort Dynamical analysis of the oceanic circulation in the Gulf of San Jorge, Argentina
dc.creator.none.fl_str_mv Palma, Elbio Daniel
Matano, Ricardo
Tonini, Mariano Hernan
Martos, Patricia
Combes, Vincent
author Palma, Elbio Daniel
author_facet Palma, Elbio Daniel
Matano, Ricardo
Tonini, Mariano Hernan
Martos, Patricia
Combes, Vincent
author_role author
author2 Matano, Ricardo
Tonini, Mariano Hernan
Martos, Patricia
Combes, Vincent
author2_role author
author
author
author
dc.subject.none.fl_str_mv CROSS-SHELF EXCHANGES
GULF OF SAN JORGE
NUMERICAL CIRCULATION MODEL
PATAGONIAN SHELF
SEASONAL VARIABILITY
TIDAL AND WIND FORCING
topic CROSS-SHELF EXCHANGES
GULF OF SAN JORGE
NUMERICAL CIRCULATION MODEL
PATAGONIAN SHELF
SEASONAL VARIABILITY
TIDAL AND WIND FORCING
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv This study identifies the dynamical mechanisms driving seasonal variations in oceanic circulation and water mass characteristics of the Gulf of San Jorge (GSJ) and its exchanges with the Patagonian Shelf (PS). A suite of process-oriented numerical experiments indicates that GSJ circulation is mainly driven by tidal forcing and modulated by wind forcing and intrusions from the PS. During late spring and summer, stratification decouples the upper and deeper layers of the gulf, leading to a shallow, wind-forced surface circulation and a deeper, density driven, cyclonic geostrophic flow. The subsurface circulation is induced by differential tidal mixing in coastal and deep areas and its intensity is strongly affected by the temporal variability of the atmospheric heat flux, which increases from spring to summer and fades from fall to winter. As stratification weakens, circulation patterns are replaced by wind-driven anticyclonic gyres in the south and an open cyclonic loop in the north. Passive tracer diagnostics show that in summer, surface and subsurface waters from the GSJ northern coast are exported and replaced by waters from the coastal portion of PS currents. The renewal of bottom waters is slower: A small portion upwells in the southwestern coast but most are ventilated by winter convection in the southern region and by intrusions of PS waters in the northern region.
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: Tonini, Mariano Hernan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Centro para el Estudio de Sistemas Marinos; Argentina
Fil: Martos, Patricia. Universidad Nacional de Mar del Plata; Argentina. Instituto Nacional de Investigaciones y Desarrollo Pesquero; Argentina
Fil: Combes, Vincent. State University of Oregon; Estados Unidos
description This study identifies the dynamical mechanisms driving seasonal variations in oceanic circulation and water mass characteristics of the Gulf of San Jorge (GSJ) and its exchanges with the Patagonian Shelf (PS). A suite of process-oriented numerical experiments indicates that GSJ circulation is mainly driven by tidal forcing and modulated by wind forcing and intrusions from the PS. During late spring and summer, stratification decouples the upper and deeper layers of the gulf, leading to a shallow, wind-forced surface circulation and a deeper, density driven, cyclonic geostrophic flow. The subsurface circulation is induced by differential tidal mixing in coastal and deep areas and its intensity is strongly affected by the temporal variability of the atmospheric heat flux, which increases from spring to summer and fades from fall to winter. As stratification weakens, circulation patterns are replaced by wind-driven anticyclonic gyres in the south and an open cyclonic loop in the north. Passive tracer diagnostics show that in summer, surface and subsurface waters from the GSJ northern coast are exported and replaced by waters from the coastal portion of PS currents. The renewal of bottom waters is slower: A small portion upwells in the southwestern coast but most are ventilated by winter convection in the southern region and by intrusions of PS waters in the northern region.
publishDate 2020
dc.date.none.fl_str_mv 2020-03
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/11336/136441
Palma, Elbio Daniel; Matano, Ricardo; Tonini, Mariano Hernan; Martos, Patricia; Combes, Vincent; Dynamical analysis of the oceanic circulation in the Gulf of San Jorge, Argentina; Elsevier Science; Journal of Marine Systems; 203; 3-2020; 1-17; 103261
0924-7963
CONICET Digital
CONICET
url http://hdl.handle.net/11336/136441
identifier_str_mv Palma, Elbio Daniel; Matano, Ricardo; Tonini, Mariano Hernan; Martos, Patricia; Combes, Vincent; Dynamical analysis of the oceanic circulation in the Gulf of San Jorge, Argentina; Elsevier Science; Journal of Marine Systems; 203; 3-2020; 1-17; 103261
0924-7963
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jmarsys.2019.103261
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0924796319303987
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
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
_version_ 1846782161471930368
score 12.982451

Publicaciones similares