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...
Published in: | Journal of Geophysical Research: Oceans |
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Main Authors: | , , , , |
Other Authors: | , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2016
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Subjects: | |
Online Access: | https://hal.sorbonne-universite.fr/hal-01305033 https://hal.sorbonne-universite.fr/hal-01305033/document https://hal.sorbonne-universite.fr/hal-01305033/file/Koenig_2016_Anatomy_of_the.pdf https://doi.org/10.1002/2015JC011436 |
id |
ftunivnantes:oai:HAL:hal-01305033v1 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
Drake Passage Antarctic Circumpolar Current basin modes barotropic baroclinic transport [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
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 |
topic_facet |
Drake Passage Antarctic Circumpolar Current basin modes barotropic baroclinic transport [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
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. |
author2 |
Austral, Boréal et Carbone (ABC) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) 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)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-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)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-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)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-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 |
author |
Koenig, Zoé Provost, Christine Park, Young-Hyang Ferrari, Ramiro Sennéchael, Nathalie |
author_facet |
Koenig, Zoé Provost, Christine Park, Young-Hyang Ferrari, Ramiro Sennéchael, Nathalie |
author_sort |
Koenig, Zoé |
title |
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_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_sort |
anatomy of the antarctic circumpolar current volume transports through drake passage |
publisher |
HAL CCSD |
publishDate |
2016 |
url |
https://hal.sorbonne-universite.fr/hal-01305033 https://hal.sorbonne-universite.fr/hal-01305033/document https://hal.sorbonne-universite.fr/hal-01305033/file/Koenig_2016_Anatomy_of_the.pdf https://doi.org/10.1002/2015JC011436 |
long_lat |
ENVELOPE(-60.000,-60.000,-60.000,-60.000) ENVELOPE(-61.500,-61.500,-56.000,-56.000) |
geographic |
Antarctic The Antarctic Drake Passage Shackleton Shackleton Fracture Zone Yaghan Basin |
geographic_facet |
Antarctic The Antarctic Drake Passage Shackleton Shackleton Fracture Zone Yaghan Basin |
genre |
Antarc* Antarctic Drake Passage |
genre_facet |
Antarc* Antarctic Drake Passage |
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⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1002/2015JC011436 hal-01305033 https://hal.sorbonne-universite.fr/hal-01305033 https://hal.sorbonne-universite.fr/hal-01305033/document https://hal.sorbonne-universite.fr/hal-01305033/file/Koenig_2016_Anatomy_of_the.pdf doi:10.1002/2015JC011436 WOS: 000383462300026 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1002/2015JC011436 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
121 |
container_issue |
4 |
container_start_page |
2572 |
op_container_end_page |
2595 |
_version_ |
1766196205407174656 |
spelling |
ftunivnantes:oai:HAL:hal-01305033v1 2023-05-15T13:44:01+02:00 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) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) 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)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-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)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-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)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-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-01305033/document https://hal.sorbonne-universite.fr/hal-01305033/file/Koenig_2016_Anatomy_of_the.pdf https://doi.org/10.1002/2015JC011436 en eng HAL CCSD Wiley-Blackwell info:eu-repo/semantics/altIdentifier/doi/10.1002/2015JC011436 hal-01305033 https://hal.sorbonne-universite.fr/hal-01305033 https://hal.sorbonne-universite.fr/hal-01305033/document https://hal.sorbonne-universite.fr/hal-01305033/file/Koenig_2016_Anatomy_of_the.pdf 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 ftunivnantes https://doi.org/10.1002/2015JC011436 2023-02-08T10:14:55Z 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 Nantes: HAL-UNIV-NANTES Antarctic The Antarctic Drake Passage Shackleton Shackleton Fracture Zone ENVELOPE(-60.000,-60.000,-60.000,-60.000) Yaghan Basin ENVELOPE(-61.500,-61.500,-56.000,-56.000) Journal of Geophysical Research: Oceans 121 4 2572 2595 |