What are the origins of the Antarctic Intermediate Waters transported by the North Caledonian
International audience The trajectories of several Argo floats are studied to investigate the mid-depth circulation in the southwest Pacific that coincides with the spreading of the Antarctic Intermediate Waters (AAIW). Before entering the Coral Sea, the floats converge and join the North Caledonian...
Published in: | Geophysical Research Letters |
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Online Access: | https://hal.science/hal-00287143 https://hal.science/hal-00287143/document https://hal.science/hal-00287143/file/2007GL031546.pdf https://doi.org/10.1029/2007GL031546 |
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ftinsu:oai:HAL:hal-00287143v1 2023-12-17T10:22:00+01:00 What are the origins of the Antarctic Intermediate Waters transported by the North Caledonian Maes, C. Gourdeau, L. Couvelard, X. Ganachaud, A. Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) 2007 https://hal.science/hal-00287143 https://hal.science/hal-00287143/document https://hal.science/hal-00287143/file/2007GL031546.pdf https://doi.org/10.1029/2007GL031546 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2007GL031546 hal-00287143 https://hal.science/hal-00287143 https://hal.science/hal-00287143/document https://hal.science/hal-00287143/file/2007GL031546.pdf doi:10.1029/2007GL031546 IRD: fdi:010046754 info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-00287143 Geophysical Research Letters, 2007, 34, pp.L21608. ⟨10.1029/2007GL031546⟩ [SDU]Sciences of the Universe [physics] info:eu-repo/semantics/article Journal articles 2007 ftinsu https://doi.org/10.1029/2007GL031546 2023-11-22T17:37:14Z International audience The trajectories of several Argo floats are studied to investigate the mid-depth circulation in the southwest Pacific that coincides with the spreading of the Antarctic Intermediate Waters (AAIW). Before entering the Coral Sea, the floats converge and join the North Caledonian Jet (NCJ) south of 15°S. These observations suggest that the waters transported by this jet do not have a unique source. Hydrologic parameters and oxygen concentration confirm that the characteristics of the AAIW in the NCJ result from a convergence and a mixing of waters from the northern limb of the subtropical gyre and from the southeastern New Caledonian region. The northern contribution is associated with the water masses transported by the North Vanuatu jet that re-circulate in the region between the D'Entrecasteaux reefs and the Vanuatu archipelago. It is shown that such complex dynamical features could be reproduced by numerical models when their horizontal resolution is sufficiently high. Article in Journal/Newspaper Antarc* Antarctic Institut national des sciences de l'Univers: HAL-INSU Antarctic Pacific The Antarctic Geophysical Research Letters 34 21 |
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Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[SDU]Sciences of the Universe [physics] |
spellingShingle |
[SDU]Sciences of the Universe [physics] Maes, C. Gourdeau, L. Couvelard, X. Ganachaud, A. What are the origins of the Antarctic Intermediate Waters transported by the North Caledonian |
topic_facet |
[SDU]Sciences of the Universe [physics] |
description |
International audience The trajectories of several Argo floats are studied to investigate the mid-depth circulation in the southwest Pacific that coincides with the spreading of the Antarctic Intermediate Waters (AAIW). Before entering the Coral Sea, the floats converge and join the North Caledonian Jet (NCJ) south of 15°S. These observations suggest that the waters transported by this jet do not have a unique source. Hydrologic parameters and oxygen concentration confirm that the characteristics of the AAIW in the NCJ result from a convergence and a mixing of waters from the northern limb of the subtropical gyre and from the southeastern New Caledonian region. The northern contribution is associated with the water masses transported by the North Vanuatu jet that re-circulate in the region between the D'Entrecasteaux reefs and the Vanuatu archipelago. It is shown that such complex dynamical features could be reproduced by numerical models when their horizontal resolution is sufficiently high. |
author2 |
Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Maes, C. Gourdeau, L. Couvelard, X. Ganachaud, A. |
author_facet |
Maes, C. Gourdeau, L. Couvelard, X. Ganachaud, A. |
author_sort |
Maes, C. |
title |
What are the origins of the Antarctic Intermediate Waters transported by the North Caledonian |
title_short |
What are the origins of the Antarctic Intermediate Waters transported by the North Caledonian |
title_full |
What are the origins of the Antarctic Intermediate Waters transported by the North Caledonian |
title_fullStr |
What are the origins of the Antarctic Intermediate Waters transported by the North Caledonian |
title_full_unstemmed |
What are the origins of the Antarctic Intermediate Waters transported by the North Caledonian |
title_sort |
what are the origins of the antarctic intermediate waters transported by the north caledonian |
publisher |
HAL CCSD |
publishDate |
2007 |
url |
https://hal.science/hal-00287143 https://hal.science/hal-00287143/document https://hal.science/hal-00287143/file/2007GL031546.pdf https://doi.org/10.1029/2007GL031546 |
geographic |
Antarctic Pacific The Antarctic |
geographic_facet |
Antarctic Pacific The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-00287143 Geophysical Research Letters, 2007, 34, pp.L21608. ⟨10.1029/2007GL031546⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2007GL031546 hal-00287143 https://hal.science/hal-00287143 https://hal.science/hal-00287143/document https://hal.science/hal-00287143/file/2007GL031546.pdf doi:10.1029/2007GL031546 IRD: fdi:010046754 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2007GL031546 |
container_title |
Geophysical Research Letters |
container_volume |
34 |
container_issue |
21 |
_version_ |
1785541897345826816 |