An Exchange Window for the Injection of Antarctic Intermediate Water into the South Pacific
Antarctic Intermediate Water (AAIW) occupies the intermediate horizon of most of the world oceans. Formed in the Southern Ocean, it is characterized by a relative salinity minimum. With a new, denser in situ National Oceanographic Data Center dataset, the authors have reanalyzed the export character...
Published in: | Journal of Physical Oceanography |
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Main Authors: | , , , |
Other Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2007
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Online Access: | https://doi.org/10.1175/JPO2985.1 https://hal.archives-ouvertes.fr/hal-00154224/file/%5B15200485%20-%20Journal%20of%20Physical%20Oceanography%5D%20An%20Exchange%20Window%20for%20the%20Injection%20of%20Antarctic%20Intermediate%20Water%20into%20the%20South%20Pacific.pdf https://hal.archives-ouvertes.fr/hal-00154224 |
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Open Polar |
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language |
English |
topic |
geo envir |
spellingShingle |
geo envir Iudicone, Daniele Rodgers, Keith B. Schopp, R. Madec, Gurvan An Exchange Window for the Injection of Antarctic Intermediate Water into the South Pacific |
topic_facet |
geo envir |
description |
Antarctic Intermediate Water (AAIW) occupies the intermediate horizon of most of the world oceans. Formed in the Southern Ocean, it is characterized by a relative salinity minimum. With a new, denser in situ National Oceanographic Data Center dataset, the authors have reanalyzed the export characteristics of AAIW from the Southern Ocean into the South Pacific Ocean. These new data show that part of the AAIW is exported from the subpolar frontal region by the large-scale circulation through an exchange window of 10° width situated east of 90°W in the southeast corner of the Pacific basin. This suggests the origin of this water to be in the Antarctic Circumpolar Current. A set of numerical modeling experiments has been used to reproduce these observed features and to demonstrate that the dynamics of the exchange window is controlled by the basin-scale meridional pressure gradient. The exchange of AAIW between the Southern and Pacific Oceans must therefore be understood in the context of the large basin-scale dynamical balance rather than simply local effects. |
author2 |
Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS Paris) 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 Paris) 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) Laboratoire de physique des océans (LPO) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Iudicone, Daniele Rodgers, Keith B. Schopp, R. Madec, Gurvan |
author_facet |
Iudicone, Daniele Rodgers, Keith B. Schopp, R. Madec, Gurvan |
author_sort |
Iudicone, Daniele |
title |
An Exchange Window for the Injection of Antarctic Intermediate Water into the South Pacific |
title_short |
An Exchange Window for the Injection of Antarctic Intermediate Water into the South Pacific |
title_full |
An Exchange Window for the Injection of Antarctic Intermediate Water into the South Pacific |
title_fullStr |
An Exchange Window for the Injection of Antarctic Intermediate Water into the South Pacific |
title_full_unstemmed |
An Exchange Window for the Injection of Antarctic Intermediate Water into the South Pacific |
title_sort |
exchange window for the injection of antarctic intermediate water into the south pacific |
publisher |
HAL CCSD |
publishDate |
2007 |
url |
https://doi.org/10.1175/JPO2985.1 https://hal.archives-ouvertes.fr/hal-00154224/file/%5B15200485%20-%20Journal%20of%20Physical%20Oceanography%5D%20An%20Exchange%20Window%20for%20the%20Injection%20of%20Antarctic%20Intermediate%20Water%20into%20the%20South%20Pacific.pdf https://hal.archives-ouvertes.fr/hal-00154224 |
geographic |
Antarctic Pacific Southern Ocean The Antarctic |
geographic_facet |
Antarctic Pacific Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0022-3670 EISSN: 1520-0485 Journal of Physical Oceanography Journal of Physical Oceanography, American Meteorological Society, 2007, 37 (1), pp.31-49. ⟨10.1175/JPO2985.1⟩ |
op_relation |
hal-00154224 IRD: PAR00005439 WOS: WOS:000243836300003 doi:10.1175/JPO2985.1 10670/1.xdhmkw https://hal.archives-ouvertes.fr/hal-00154224/file/%5B15200485%20-%20Journal%20of%20Physical%20Oceanography%5D%20An%20Exchange%20Window%20for%20the%20Injection%20of%20Antarctic%20Intermediate%20Water%20into%20the%20South%20Pacific.pdf https://hal.archives-ouvertes.fr/hal-00154224 |
op_rights |
other |
op_doi |
https://doi.org/10.1175/JPO2985.1 |
container_title |
Journal of Physical Oceanography |
container_volume |
37 |
container_issue |
1 |
container_start_page |
31 |
op_container_end_page |
49 |
_version_ |
1766273327666561024 |
spelling |
fttriple:oai:gotriple.eu:10670/1.xdhmkw 2023-05-15T14:02:53+02:00 An Exchange Window for the Injection of Antarctic Intermediate Water into the South Pacific Iudicone, Daniele Rodgers, Keith B. Schopp, R. Madec, Gurvan Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Muséum national d'Histoire naturelle (MNHN)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS Paris) 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 Paris) 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) Laboratoire de physique des océans (LPO) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS) 2007-01-01 https://doi.org/10.1175/JPO2985.1 https://hal.archives-ouvertes.fr/hal-00154224/file/%5B15200485%20-%20Journal%20of%20Physical%20Oceanography%5D%20An%20Exchange%20Window%20for%20the%20Injection%20of%20Antarctic%20Intermediate%20Water%20into%20the%20South%20Pacific.pdf https://hal.archives-ouvertes.fr/hal-00154224 en eng HAL CCSD American Meteorological Society hal-00154224 IRD: PAR00005439 WOS: WOS:000243836300003 doi:10.1175/JPO2985.1 10670/1.xdhmkw https://hal.archives-ouvertes.fr/hal-00154224/file/%5B15200485%20-%20Journal%20of%20Physical%20Oceanography%5D%20An%20Exchange%20Window%20for%20the%20Injection%20of%20Antarctic%20Intermediate%20Water%20into%20the%20South%20Pacific.pdf https://hal.archives-ouvertes.fr/hal-00154224 other Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0022-3670 EISSN: 1520-0485 Journal of Physical Oceanography Journal of Physical Oceanography, American Meteorological Society, 2007, 37 (1), pp.31-49. ⟨10.1175/JPO2985.1⟩ geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2007 fttriple https://doi.org/10.1175/JPO2985.1 2023-01-22T18:36:44Z Antarctic Intermediate Water (AAIW) occupies the intermediate horizon of most of the world oceans. Formed in the Southern Ocean, it is characterized by a relative salinity minimum. With a new, denser in situ National Oceanographic Data Center dataset, the authors have reanalyzed the export characteristics of AAIW from the Southern Ocean into the South Pacific Ocean. These new data show that part of the AAIW is exported from the subpolar frontal region by the large-scale circulation through an exchange window of 10° width situated east of 90°W in the southeast corner of the Pacific basin. This suggests the origin of this water to be in the Antarctic Circumpolar Current. A set of numerical modeling experiments has been used to reproduce these observed features and to demonstrate that the dynamics of the exchange window is controlled by the basin-scale meridional pressure gradient. The exchange of AAIW between the Southern and Pacific Oceans must therefore be understood in the context of the large basin-scale dynamical balance rather than simply local effects. Article in Journal/Newspaper Antarc* Antarctic Southern Ocean Unknown Antarctic Pacific Southern Ocean The Antarctic Journal of Physical Oceanography 37 1 31 49 |