Meridional Overturning Circulation Transport Variability at 34.5°S During 2009–2017: Baroclinic and Barotropic Flows and the Dueling Influence of the Boundaries

Autores
Meinen, Christopher S.; Speich, Sabrina; Piola, Alberto Ricardo; Ansorge, Isabelle; Campos, Edmo; Kersalé, Marion; Terre, Thierry; Chidichimo, María Paz; Lamont, Tarron; Sato, Olga T.; Perez, Renellys C.; Valla, Daniel; van den Berg, Marcel; Le Hénaff, Matthieu; Dong, Shenfu; Garzoli, Silvia L.
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Six years of simultaneous moored observations near the western and eastern boundaries of the South Atlantic are combined with satellite winds to produce a daily time series of the basin-wide meridional overturning circulation (MOC) volume transport at 34.5°S. The results demonstrate that barotropic and baroclinic signals at both boundaries cause significant transport variations, and as such must be concurrently observed. The data, spanning ~20 months during 2009–2010 and ~4 years during 2013–2017, reveal a highly energetic MOC record with a temporal standard deviation of 8.3 Sv, and strong variations at time scales ranging from a few days to years (peak-to-peak range = 54.6 Sv). Seasonal transport variations are found to have both semiannual (baroclinic) and annual (Ekman and barotropic) timescales. Interannual MOC variations result from both barotropic and baroclinic changes, with density profile changes at the eastern boundary having the largest impact on the year-to-year variations.
Fil: Meinen, Christopher S.. Atlantic Oceanographic And Meteorological Laboratory; Estados Unidos
Fil: Speich, Sabrina. Ecole Normale Supérieure; Francia
Fil: Piola, Alberto Ricardo. 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; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Ansorge, Isabelle. University Of Cape Town; Sudáfrica
Fil: Campos, Edmo. Universidade de Sao Paulo; Brasil. Universidade Estadual do Ceará; Brasil
Fil: Kersalé, Marion. University of Miami; Estados Unidos. Atlantic Oceanographic And Meteorological Laboratory; Estados Unidos
Fil: Terre, Thierry. Universite de Bretagne Occidentale; Francia
Fil: Chidichimo, María Paz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval; Argentina
Fil: Lamont, Tarron. University Of Cape Town; Sudáfrica
Fil: Sato, Olga T.. Universidade de Sao Paulo; Brasil
Fil: Perez, Renellys C.. Atlantic Oceanographic And Meteorological Laboratory; Estados Unidos
Fil: Valla, Daniel. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: van den Berg, Marcel. University of Brest; Francia
Fil: Le Hénaff, Matthieu. University of Miami; Estados Unidos. Atlantic Oceanographic And Meteorological Laboratory; Estados Unidos
Fil: Dong, Shenfu. Atlantic Oceanographic And Meteorological Laboratory; Estados Unidos
Fil: Garzoli, Silvia L.. Atlantic Oceanographic And Meteorological Laboratory; Estados Unidos. University of Miami; Estados Unidos
Materia
MERIDIONAL OVERTURNING CIRCULATION
OBSERVATIONS
OVERTURNING
SOUTH ATLANTIC
VOLUME TRANSPORT
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:11336/99022
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/99022
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Meridional Overturning Circulation Transport Variability at 34.5°S During 2009–2017: Baroclinic and Barotropic Flows and the Dueling Influence of the BoundariesMeinen, Christopher S.Speich, SabrinaPiola, Alberto RicardoAnsorge, IsabelleCampos, EdmoKersalé, MarionTerre, ThierryChidichimo, María PazLamont, TarronSato, Olga T.Perez, Renellys C.Valla, Danielvan den Berg, MarcelLe Hénaff, MatthieuDong, ShenfuGarzoli, Silvia L.MERIDIONAL OVERTURNING CIRCULATIONOBSERVATIONSOVERTURNINGSOUTH ATLANTICVOLUME TRANSPORThttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Six years of simultaneous moored observations near the western and eastern boundaries of the South Atlantic are combined with satellite winds to produce a daily time series of the basin-wide meridional overturning circulation (MOC) volume transport at 34.5°S. The results demonstrate that barotropic and baroclinic signals at both boundaries cause significant transport variations, and as such must be concurrently observed. The data, spanning ~20 months during 2009–2010 and ~4 years during 2013–2017, reveal a highly energetic MOC record with a temporal standard deviation of 8.3 Sv, and strong variations at time scales ranging from a few days to years (peak-to-peak range = 54.6 Sv). Seasonal transport variations are found to have both semiannual (baroclinic) and annual (Ekman and barotropic) timescales. Interannual MOC variations result from both barotropic and baroclinic changes, with density profile changes at the eastern boundary having the largest impact on the year-to-year variations.Fil: Meinen, Christopher S.. Atlantic Oceanographic And Meteorological Laboratory; Estados UnidosFil: Speich, Sabrina. Ecole Normale Supérieure; FranciaFil: Piola, Alberto Ricardo. 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; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Ansorge, Isabelle. University Of Cape Town; SudáfricaFil: Campos, Edmo. Universidade de Sao Paulo; Brasil. Universidade Estadual do Ceará; BrasilFil: Kersalé, Marion. University of Miami; Estados Unidos. Atlantic Oceanographic And Meteorological Laboratory; Estados UnidosFil: Terre, Thierry. Universite de Bretagne Occidentale; FranciaFil: Chidichimo, María Paz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval; ArgentinaFil: Lamont, Tarron. University Of Cape Town; SudáfricaFil: Sato, Olga T.. Universidade de Sao Paulo; BrasilFil: Perez, Renellys C.. Atlantic Oceanographic And Meteorological Laboratory; Estados UnidosFil: Valla, Daniel. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: van den Berg, Marcel. University of Brest; FranciaFil: Le Hénaff, Matthieu. University of Miami; Estados Unidos. Atlantic Oceanographic And Meteorological Laboratory; Estados UnidosFil: Dong, Shenfu. Atlantic Oceanographic And Meteorological Laboratory; Estados UnidosFil: Garzoli, Silvia L.. Atlantic Oceanographic And Meteorological Laboratory; Estados Unidos. University of Miami; Estados UnidosAmerican Geophysical Union2018-05info: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/11336/99022Meinen, Christopher S.; Speich, Sabrina; Piola, Alberto Ricardo; Ansorge, Isabelle; Campos, Edmo; et al.; Meridional Overturning Circulation Transport Variability at 34.5°S During 2009–2017: Baroclinic and Barotropic Flows and the Dueling Influence of the Boundaries; American Geophysical Union; Geophysical Research Letters; 45; 9; 5-2018; 4180-41880094-8276CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1029/2018GL077408info:eu-repo/semantics/altIdentifier/url/https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2018GL077408info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:20:14Zoai:ri.conicet.gov.ar:11336/99022instacron: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:34982025-10-15 14:20:14.826CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Meridional Overturning Circulation Transport Variability at 34.5°S During 2009–2017: Baroclinic and Barotropic Flows and the Dueling Influence of the Boundaries
title Meridional Overturning Circulation Transport Variability at 34.5°S During 2009–2017: Baroclinic and Barotropic Flows and the Dueling Influence of the Boundaries
spellingShingle Meridional Overturning Circulation Transport Variability at 34.5°S During 2009–2017: Baroclinic and Barotropic Flows and the Dueling Influence of the Boundaries
Meinen, Christopher S.
MERIDIONAL OVERTURNING CIRCULATION
OBSERVATIONS
OVERTURNING
SOUTH ATLANTIC
VOLUME TRANSPORT
title_short Meridional Overturning Circulation Transport Variability at 34.5°S During 2009–2017: Baroclinic and Barotropic Flows and the Dueling Influence of the Boundaries
title_full Meridional Overturning Circulation Transport Variability at 34.5°S During 2009–2017: Baroclinic and Barotropic Flows and the Dueling Influence of the Boundaries
title_fullStr Meridional Overturning Circulation Transport Variability at 34.5°S During 2009–2017: Baroclinic and Barotropic Flows and the Dueling Influence of the Boundaries
title_full_unstemmed Meridional Overturning Circulation Transport Variability at 34.5°S During 2009–2017: Baroclinic and Barotropic Flows and the Dueling Influence of the Boundaries
title_sort Meridional Overturning Circulation Transport Variability at 34.5°S During 2009–2017: Baroclinic and Barotropic Flows and the Dueling Influence of the Boundaries
dc.creator.none.fl_str_mv Meinen, Christopher S.
Speich, Sabrina
Piola, Alberto Ricardo
Ansorge, Isabelle
Campos, Edmo
Kersalé, Marion
Terre, Thierry
Chidichimo, María Paz
Lamont, Tarron
Sato, Olga T.
Perez, Renellys C.
Valla, Daniel
van den Berg, Marcel
Le Hénaff, Matthieu
Dong, Shenfu
Garzoli, Silvia L.
author Meinen, Christopher S.
author_facet Meinen, Christopher S.
Speich, Sabrina
Piola, Alberto Ricardo
Ansorge, Isabelle
Campos, Edmo
Kersalé, Marion
Terre, Thierry
Chidichimo, María Paz
Lamont, Tarron
Sato, Olga T.
Perez, Renellys C.
Valla, Daniel
van den Berg, Marcel
Le Hénaff, Matthieu
Dong, Shenfu
Garzoli, Silvia L.
author_role author
author2 Speich, Sabrina
Piola, Alberto Ricardo
Ansorge, Isabelle
Campos, Edmo
Kersalé, Marion
Terre, Thierry
Chidichimo, María Paz
Lamont, Tarron
Sato, Olga T.
Perez, Renellys C.
Valla, Daniel
van den Berg, Marcel
Le Hénaff, Matthieu
Dong, Shenfu
Garzoli, Silvia L.
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv MERIDIONAL OVERTURNING CIRCULATION
OBSERVATIONS
OVERTURNING
SOUTH ATLANTIC
VOLUME TRANSPORT
topic MERIDIONAL OVERTURNING CIRCULATION
OBSERVATIONS
OVERTURNING
SOUTH ATLANTIC
VOLUME TRANSPORT
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Six years of simultaneous moored observations near the western and eastern boundaries of the South Atlantic are combined with satellite winds to produce a daily time series of the basin-wide meridional overturning circulation (MOC) volume transport at 34.5°S. The results demonstrate that barotropic and baroclinic signals at both boundaries cause significant transport variations, and as such must be concurrently observed. The data, spanning ~20 months during 2009–2010 and ~4 years during 2013–2017, reveal a highly energetic MOC record with a temporal standard deviation of 8.3 Sv, and strong variations at time scales ranging from a few days to years (peak-to-peak range = 54.6 Sv). Seasonal transport variations are found to have both semiannual (baroclinic) and annual (Ekman and barotropic) timescales. Interannual MOC variations result from both barotropic and baroclinic changes, with density profile changes at the eastern boundary having the largest impact on the year-to-year variations.
Fil: Meinen, Christopher S.. Atlantic Oceanographic And Meteorological Laboratory; Estados Unidos
Fil: Speich, Sabrina. Ecole Normale Supérieure; Francia
Fil: Piola, Alberto Ricardo. 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; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Ansorge, Isabelle. University Of Cape Town; Sudáfrica
Fil: Campos, Edmo. Universidade de Sao Paulo; Brasil. Universidade Estadual do Ceará; Brasil
Fil: Kersalé, Marion. University of Miami; Estados Unidos. Atlantic Oceanographic And Meteorological Laboratory; Estados Unidos
Fil: Terre, Thierry. Universite de Bretagne Occidentale; Francia
Fil: Chidichimo, María Paz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval; Argentina
Fil: Lamont, Tarron. University Of Cape Town; Sudáfrica
Fil: Sato, Olga T.. Universidade de Sao Paulo; Brasil
Fil: Perez, Renellys C.. Atlantic Oceanographic And Meteorological Laboratory; Estados Unidos
Fil: Valla, Daniel. Ministerio de Defensa. Armada Argentina. Servicio de Hidrografía Naval; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: van den Berg, Marcel. University of Brest; Francia
Fil: Le Hénaff, Matthieu. University of Miami; Estados Unidos. Atlantic Oceanographic And Meteorological Laboratory; Estados Unidos
Fil: Dong, Shenfu. Atlantic Oceanographic And Meteorological Laboratory; Estados Unidos
Fil: Garzoli, Silvia L.. Atlantic Oceanographic And Meteorological Laboratory; Estados Unidos. University of Miami; Estados Unidos
description Six years of simultaneous moored observations near the western and eastern boundaries of the South Atlantic are combined with satellite winds to produce a daily time series of the basin-wide meridional overturning circulation (MOC) volume transport at 34.5°S. The results demonstrate that barotropic and baroclinic signals at both boundaries cause significant transport variations, and as such must be concurrently observed. The data, spanning ~20 months during 2009–2010 and ~4 years during 2013–2017, reveal a highly energetic MOC record with a temporal standard deviation of 8.3 Sv, and strong variations at time scales ranging from a few days to years (peak-to-peak range = 54.6 Sv). Seasonal transport variations are found to have both semiannual (baroclinic) and annual (Ekman and barotropic) timescales. Interannual MOC variations result from both barotropic and baroclinic changes, with density profile changes at the eastern boundary having the largest impact on the year-to-year variations.
publishDate 2018
dc.date.none.fl_str_mv 2018-05
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/11336/99022
Meinen, Christopher S.; Speich, Sabrina; Piola, Alberto Ricardo; Ansorge, Isabelle; Campos, Edmo; et al.; Meridional Overturning Circulation Transport Variability at 34.5°S During 2009–2017: Baroclinic and Barotropic Flows and the Dueling Influence of the Boundaries; American Geophysical Union; Geophysical Research Letters; 45; 9; 5-2018; 4180-4188
0094-8276
CONICET Digital
CONICET
url http://hdl.handle.net/11336/99022
identifier_str_mv Meinen, Christopher S.; Speich, Sabrina; Piola, Alberto Ricardo; Ansorge, Isabelle; Campos, Edmo; et al.; Meridional Overturning Circulation Transport Variability at 34.5°S During 2009–2017: Baroclinic and Barotropic Flows and the Dueling Influence of the Boundaries; American Geophysical Union; Geophysical Research Letters; 45; 9; 5-2018; 4180-4188
0094-8276
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1029/2018GL077408
info:eu-repo/semantics/altIdentifier/url/https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2018GL077408
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 13.22299

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