Anatomy of the Antarctic Circumpolar Current volume transports through Drake Passage

International audience The 20 year (October 1992 to August 2013) observation-based volume transport time series of the Antarctic Circumpolar Current (ACC) through Drake Passage (DP) across the Jason altimeter track #104 is analyzed to better understand the ACC transport variability and its potential...

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Published in:Journal of Geophysical Research: Oceans
Main Authors: Koenig, Zoé, Provost, Christine, Park, Young-Hyang, Ferrari, Ramiro, Sennéchael, Nathalie
Other Authors: Austral, Boréal et Carbone (ABC), Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN), Institut Pierre-Simon-Laplace (IPSL), École normale supérieure - Paris (ENS-PSL), Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X), Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL), Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL), Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Centro de Investigaciones del Mar y la Atmósfera (CIMA), Consejo Nacional de Investigaciones Científicas y Técnicas Buenos Aires (CONICET)-Facultad de Ciencias Exactas y Naturales Buenos Aires (FCEyN), Universidad de Buenos Aires Buenos Aires (UBA)-Universidad de Buenos Aires Buenos Aires (UBA)
Format: Article in Journal/Newspaper
Language:English
Published: CCSD 2016
Subjects:
Online Access:https://hal.sorbonne-universite.fr/hal-01305033
https://hal.sorbonne-universite.fr/hal-01305033v1/document
https://hal.sorbonne-universite.fr/hal-01305033v1/file/Koenig_2016_Anatomy_of_the.pdf
https://doi.org/10.1002/2015JC011436
_version_ 1827405331942080512
author Koenig, Zoé
Provost, Christine
Park, Young-Hyang
Ferrari, Ramiro
Sennéchael, Nathalie
author2 Austral, Boréal et Carbone (ABC)
Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN)
Institut Pierre-Simon-Laplace (IPSL)
École normale supérieure - Paris (ENS-PSL)
Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)
Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL)
Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL)
Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)
Centro de Investigaciones del Mar y la Atmósfera (CIMA)
Consejo Nacional de Investigaciones Científicas y Técnicas Buenos Aires (CONICET)-Facultad de Ciencias Exactas y Naturales Buenos Aires (FCEyN)
Universidad de Buenos Aires Buenos Aires (UBA)-Universidad de Buenos Aires Buenos Aires (UBA)
author_facet Koenig, Zoé
Provost, Christine
Park, Young-Hyang
Ferrari, Ramiro
Sennéchael, Nathalie
author_sort Koenig, Zoé
collection Université de Paris: Portail HAL
container_issue 4
container_start_page 2572
container_title Journal of Geophysical Research: Oceans
container_volume 121
description International audience The 20 year (October 1992 to August 2013) observation-based volume transport time series of the Antarctic Circumpolar Current (ACC) through Drake Passage (DP) across the Jason altimeter track #104 is analyzed to better understand the ACC transport variability and its potential causes. The time series of three transport components (total (TT), barotropic (BT), and baroclinic (BC)) referenced to 3000 m present energetic intraseasonal fluctuations, with a salient spectral peak at 50 and 36 days, with the largest (least) variance being associated with the BT (BC) component. Low-frequency variations are much less energetic with a significant variance limited to the annual and biannual timescales and show a nonstationary intermittent link with the Southern Annular Mode and the Nino 3.4 index for interannual timescales. The region around 57°S in the Yaghan Basin appears to be a strategic point for a practical monitoring of the ACC transport , as the whole-track TT is significantly correlated with the local TT (r=5 0.53) and BT (r=5 0.69) around 57°S. These local BT (and TT) variations are associated with a well-defined tripole pattern in altimetric sea level anomaly (SLA). There is evidence that the tripole pattern associated with BT is locally generated when the BC-associated mesoscale SLAs, which have propagated eastward from an upstream area of DP, cross the Shackleton Fracture Zone to penetrate into the Yaghan Basin. Barotropic basin modes excited within the Yaghan Basin are discussed as a plausible mechanism for the observed energy-containing intra-seasonal spectral peaks found in the transport variability.
format Article in Journal/Newspaper
genre Antarc*
Antarctic
Drake Passage
genre_facet Antarc*
Antarctic
Drake Passage
geographic Antarctic
Drake Passage
Shackleton
Shackleton Fracture Zone
The Antarctic
Yaghan Basin
geographic_facet Antarctic
Drake Passage
Shackleton
Shackleton Fracture Zone
The Antarctic
Yaghan Basin
id ftunivparis:oai:HAL:hal-01305033v1
institution Open Polar
language English
long_lat ENVELOPE(-60.000,-60.000,-60.000,-60.000)
ENVELOPE(-61.500,-61.500,-56.000,-56.000)
op_collection_id ftunivparis
op_container_end_page 2595
op_doi https://doi.org/10.1002/2015JC011436
op_relation info:eu-repo/semantics/altIdentifier/doi/10.1002/2015JC011436
doi:10.1002/2015JC011436
WOS: 000383462300026
op_rights info:eu-repo/semantics/OpenAccess
op_source ISSN: 2169-9275
EISSN: 2169-9291
Journal of Geophysical Research. Oceans
https://hal.sorbonne-universite.fr/hal-01305033
Journal of Geophysical Research. Oceans, 2016, 121 (4), pp.2572-2595. ⟨10.1002/2015JC011436⟩
publishDate 2016
publisher CCSD
record_format openpolar
spelling ftunivparis:oai:HAL:hal-01305033v1 2025-03-23T15:26:45+00:00 Anatomy of the Antarctic Circumpolar Current volume transports through Drake Passage Koenig, Zoé Provost, Christine Park, Young-Hyang Ferrari, Ramiro Sennéchael, Nathalie Austral, Boréal et Carbone (ABC) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Institut Pierre-Simon-Laplace (IPSL) École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X) Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL) Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL) Institut Polytechnique de Paris (IP Paris)-Institut Polytechnique de Paris (IP Paris)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS) Centro de Investigaciones del Mar y la Atmósfera (CIMA) Consejo Nacional de Investigaciones Científicas y Técnicas Buenos Aires (CONICET)-Facultad de Ciencias Exactas y Naturales Buenos Aires (FCEyN) Universidad de Buenos Aires Buenos Aires (UBA)-Universidad de Buenos Aires Buenos Aires (UBA) 2016 https://hal.sorbonne-universite.fr/hal-01305033 https://hal.sorbonne-universite.fr/hal-01305033v1/document https://hal.sorbonne-universite.fr/hal-01305033v1/file/Koenig_2016_Anatomy_of_the.pdf https://doi.org/10.1002/2015JC011436 en eng CCSD Wiley-Blackwell info:eu-repo/semantics/altIdentifier/doi/10.1002/2015JC011436 doi:10.1002/2015JC011436 WOS: 000383462300026 info:eu-repo/semantics/OpenAccess ISSN: 2169-9275 EISSN: 2169-9291 Journal of Geophysical Research. Oceans https://hal.sorbonne-universite.fr/hal-01305033 Journal of Geophysical Research. Oceans, 2016, 121 (4), pp.2572-2595. ⟨10.1002/2015JC011436⟩ Drake Passage Antarctic Circumpolar Current basin modes barotropic baroclinic transport [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2016 ftunivparis https://doi.org/10.1002/2015JC011436 2025-02-21T00:57:02Z International audience The 20 year (October 1992 to August 2013) observation-based volume transport time series of the Antarctic Circumpolar Current (ACC) through Drake Passage (DP) across the Jason altimeter track #104 is analyzed to better understand the ACC transport variability and its potential causes. The time series of three transport components (total (TT), barotropic (BT), and baroclinic (BC)) referenced to 3000 m present energetic intraseasonal fluctuations, with a salient spectral peak at 50 and 36 days, with the largest (least) variance being associated with the BT (BC) component. Low-frequency variations are much less energetic with a significant variance limited to the annual and biannual timescales and show a nonstationary intermittent link with the Southern Annular Mode and the Nino 3.4 index for interannual timescales. The region around 57°S in the Yaghan Basin appears to be a strategic point for a practical monitoring of the ACC transport , as the whole-track TT is significantly correlated with the local TT (r=5 0.53) and BT (r=5 0.69) around 57°S. These local BT (and TT) variations are associated with a well-defined tripole pattern in altimetric sea level anomaly (SLA). There is evidence that the tripole pattern associated with BT is locally generated when the BC-associated mesoscale SLAs, which have propagated eastward from an upstream area of DP, cross the Shackleton Fracture Zone to penetrate into the Yaghan Basin. Barotropic basin modes excited within the Yaghan Basin are discussed as a plausible mechanism for the observed energy-containing intra-seasonal spectral peaks found in the transport variability. Article in Journal/Newspaper Antarc* Antarctic Drake Passage Université de Paris: Portail HAL Antarctic Drake Passage Shackleton Shackleton Fracture Zone ENVELOPE(-60.000,-60.000,-60.000,-60.000) The Antarctic Yaghan Basin ENVELOPE(-61.500,-61.500,-56.000,-56.000) Journal of Geophysical Research: Oceans 121 4 2572 2595
spellingShingle Drake Passage
Antarctic Circumpolar Current
basin modes
barotropic
baroclinic
transport
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography
Koenig, Zoé
Provost, Christine
Park, Young-Hyang
Ferrari, Ramiro
Sennéchael, Nathalie
Anatomy of the Antarctic Circumpolar Current volume transports through Drake Passage
title Anatomy of the Antarctic Circumpolar Current volume transports through Drake Passage
title_full Anatomy of the Antarctic Circumpolar Current volume transports through Drake Passage
title_fullStr Anatomy of the Antarctic Circumpolar Current volume transports through Drake Passage
title_full_unstemmed Anatomy of the Antarctic Circumpolar Current volume transports through Drake Passage
title_short Anatomy of the Antarctic Circumpolar Current volume transports through Drake Passage
title_sort anatomy of the antarctic circumpolar current volume transports through drake passage
topic Drake Passage
Antarctic Circumpolar Current
basin modes
barotropic
baroclinic
transport
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography
topic_facet Drake Passage
Antarctic Circumpolar Current
basin modes
barotropic
baroclinic
transport
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography
url https://hal.sorbonne-universite.fr/hal-01305033
https://hal.sorbonne-universite.fr/hal-01305033v1/document
https://hal.sorbonne-universite.fr/hal-01305033v1/file/Koenig_2016_Anatomy_of_the.pdf
https://doi.org/10.1002/2015JC011436