Subpolar Mode Water formation traced by neodymium isotopic composition
International audience The formation of Subpolar Mode Water (SPMW) is documented by combining neodymium isotopic composition (Nd IC) as a conservative tracer with salinity, temperature and O 2 concentration. Nd IC reveals a more pronounced eastward extension of the Labrador Current, particularly its...
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Online Access: | https://hal.science/hal-00399162 https://hal.science/hal-00399162/document https://hal.science/hal-00399162/file/2004GL019747.pdf https://doi.org/10.1029/2004GL019747 |
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ftinsu:oai:HAL:hal-00399162v1 2023-12-17T10:29:23+01:00 Subpolar Mode Water formation traced by neodymium isotopic composition Lacan, F. Jeandel, C. GEOMAR LEGOS 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)-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)-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) 2004 https://hal.science/hal-00399162 https://hal.science/hal-00399162/document https://hal.science/hal-00399162/file/2004GL019747.pdf https://doi.org/10.1029/2004GL019747 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2004GL019747 hal-00399162 https://hal.science/hal-00399162 https://hal.science/hal-00399162/document https://hal.science/hal-00399162/file/2004GL019747.pdf doi:10.1029/2004GL019747 info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-00399162 Geophysical Research Letters, 2004, 31, pp.L14306. ⟨10.1029/2004GL019747⟩ [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2004 ftinsu https://doi.org/10.1029/2004GL019747 2023-11-22T17:38:01Z International audience The formation of Subpolar Mode Water (SPMW) is documented by combining neodymium isotopic composition (Nd IC) as a conservative tracer with salinity, temperature and O 2 concentration. Nd IC reveals a more pronounced eastward extension of the Labrador Current, particularly its Subarctic Intermediate Water component, than the other parameters. Nd IC also suggests that waters flowing through the Denmark Strait do not significantly contribute to the SPMW formation. A two end-member mixing, involving Subarctic Intermediate Water (and maybe ultimately Labrador Current Water) and North Atlantic Central Water, is proposed to explain SPMW formation. These results provide important insight into the processes controlling the Nd IC in the North Atlantic Subpolar Gyre, which could provide a means for reconstructing the northward extension of the Gulf Stream in the past. Article in Journal/Newspaper Denmark Strait North Atlantic Subarctic Institut national des sciences de l'Univers: HAL-INSU Geophysical Research Letters 31 14 |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Lacan, F. Jeandel, C. Subpolar Mode Water formation traced by neodymium isotopic composition |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience The formation of Subpolar Mode Water (SPMW) is documented by combining neodymium isotopic composition (Nd IC) as a conservative tracer with salinity, temperature and O 2 concentration. Nd IC reveals a more pronounced eastward extension of the Labrador Current, particularly its Subarctic Intermediate Water component, than the other parameters. Nd IC also suggests that waters flowing through the Denmark Strait do not significantly contribute to the SPMW formation. A two end-member mixing, involving Subarctic Intermediate Water (and maybe ultimately Labrador Current Water) and North Atlantic Central Water, is proposed to explain SPMW formation. These results provide important insight into the processes controlling the Nd IC in the North Atlantic Subpolar Gyre, which could provide a means for reconstructing the northward extension of the Gulf Stream in the past. |
author2 |
GEOMAR LEGOS 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)-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)-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 |
Lacan, F. Jeandel, C. |
author_facet |
Lacan, F. Jeandel, C. |
author_sort |
Lacan, F. |
title |
Subpolar Mode Water formation traced by neodymium isotopic composition |
title_short |
Subpolar Mode Water formation traced by neodymium isotopic composition |
title_full |
Subpolar Mode Water formation traced by neodymium isotopic composition |
title_fullStr |
Subpolar Mode Water formation traced by neodymium isotopic composition |
title_full_unstemmed |
Subpolar Mode Water formation traced by neodymium isotopic composition |
title_sort |
subpolar mode water formation traced by neodymium isotopic composition |
publisher |
HAL CCSD |
publishDate |
2004 |
url |
https://hal.science/hal-00399162 https://hal.science/hal-00399162/document https://hal.science/hal-00399162/file/2004GL019747.pdf https://doi.org/10.1029/2004GL019747 |
genre |
Denmark Strait North Atlantic Subarctic |
genre_facet |
Denmark Strait North Atlantic Subarctic |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.science/hal-00399162 Geophysical Research Letters, 2004, 31, pp.L14306. ⟨10.1029/2004GL019747⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2004GL019747 hal-00399162 https://hal.science/hal-00399162 https://hal.science/hal-00399162/document https://hal.science/hal-00399162/file/2004GL019747.pdf doi:10.1029/2004GL019747 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2004GL019747 |
container_title |
Geophysical Research Letters |
container_volume |
31 |
container_issue |
14 |
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1785581749981413376 |