Antarctic Intermediate Water influence on Mediterranean Sea Water outflow
International audience This study of the mixing of Mediterranean Sea Water (MW) with the surrounding waters was made possible by the Semane 2002 cruise (Sortie des Eaux Mediterraneennes dans l'Atlantique Nord-Est) that took place in the Gulf of Cadiz in July 2002. Potential temperature, salinit...
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ftccsdartic:oai:HAL:hal-01251678v1 2023-05-15T13:41:05+02:00 Antarctic Intermediate Water influence on Mediterranean Sea Water outflow Louarn, Essyllt Morin, Pascal Laboratoire de Chimie Physique D'Orsay (LCPO) Université Paris-Sud - Paris 11 (UP11)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS) CHImie Marine (CHIM) Adaptation et diversité en milieu marin (AD2M) Station biologique de Roscoff Roscoff (SBR) Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Station biologique de Roscoff Roscoff (SBR) Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) 2011 https://hal.archives-ouvertes.fr/hal-01251678 https://doi.org/10.1016/j.dsr.2011.05.009 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.dsr.2011.05.009 hal-01251678 https://hal.archives-ouvertes.fr/hal-01251678 doi:10.1016/j.dsr.2011.05.009 ISSN: 0967-0637 Deep Sea Research Part I: Oceanographic Research Papers https://hal.archives-ouvertes.fr/hal-01251678 Deep Sea Research Part I: Oceanographic Research Papers, Elsevier, 2011, 58 (9), pp.932-942. ⟨10.1016/j.dsr.2011.05.009⟩ Mediterranean Sea Water Formation Gulf of Cadiz Antarctic Intermediate Waters [SDV]Life Sciences [q-bio] [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2011 ftccsdartic https://doi.org/10.1016/j.dsr.2011.05.009 2021-12-12T04:42:08Z International audience This study of the mixing of Mediterranean Sea Water (MW) with the surrounding waters was made possible by the Semane 2002 cruise (Sortie des Eaux Mediterraneennes dans l'Atlantique Nord-Est) that took place in the Gulf of Cadiz in July 2002. Potential temperature, salinity, oxygen, nutrients and CFC data are used to describe the water masses present in the Gulf. In the southern part of the basin, a water mass characterised by low oxygen, high nutrient and low CFC concentrations occurs along the African continental slope. This water has been identified as the modified Antarctic Intermediate Water (AAIW). It has been previously observed south of this section, at the latitude of the Canary Islands, as a northward flow between the African shelf and the islands. The modified AAIW found in the Gulf of Cadiz is situated at a density of 27.5 kg m(-3). Above, at 27.3 kg m(-3), the lower limb of the North Atlantic Central Water is observed as a salinity minimum. The modified AAIW enters the Gulf of Cadiz along the south-western part of the continental shelf. It flows cyclonically and exits north-westward. In the northern part of the gulf, due to the presence of the Mediterranean Undercurrent (MU), the AAIW flows off the coast. An optimum multiparameter analysis was conducted to evaluate the influence of the AAIW on the MW northwest of the basin. We show that the AAIW is present in the lower core of the MU at a proportion of 12.9 +/- 8.2% and is absent in the upper core. Crown Copyright (C) 2011 Published by Elsevier Ltd. All rights reserved. Article in Journal/Newspaper Antarc* Antarctic North Atlantic Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Antarctic Deep Sea Research Part I: Oceanographic Research Papers 58 9 932 942 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
Mediterranean Sea Water Formation Gulf of Cadiz Antarctic Intermediate Waters [SDV]Life Sciences [q-bio] [SDE]Environmental Sciences |
spellingShingle |
Mediterranean Sea Water Formation Gulf of Cadiz Antarctic Intermediate Waters [SDV]Life Sciences [q-bio] [SDE]Environmental Sciences Louarn, Essyllt Morin, Pascal Antarctic Intermediate Water influence on Mediterranean Sea Water outflow |
topic_facet |
Mediterranean Sea Water Formation Gulf of Cadiz Antarctic Intermediate Waters [SDV]Life Sciences [q-bio] [SDE]Environmental Sciences |
description |
International audience This study of the mixing of Mediterranean Sea Water (MW) with the surrounding waters was made possible by the Semane 2002 cruise (Sortie des Eaux Mediterraneennes dans l'Atlantique Nord-Est) that took place in the Gulf of Cadiz in July 2002. Potential temperature, salinity, oxygen, nutrients and CFC data are used to describe the water masses present in the Gulf. In the southern part of the basin, a water mass characterised by low oxygen, high nutrient and low CFC concentrations occurs along the African continental slope. This water has been identified as the modified Antarctic Intermediate Water (AAIW). It has been previously observed south of this section, at the latitude of the Canary Islands, as a northward flow between the African shelf and the islands. The modified AAIW found in the Gulf of Cadiz is situated at a density of 27.5 kg m(-3). Above, at 27.3 kg m(-3), the lower limb of the North Atlantic Central Water is observed as a salinity minimum. The modified AAIW enters the Gulf of Cadiz along the south-western part of the continental shelf. It flows cyclonically and exits north-westward. In the northern part of the gulf, due to the presence of the Mediterranean Undercurrent (MU), the AAIW flows off the coast. An optimum multiparameter analysis was conducted to evaluate the influence of the AAIW on the MW northwest of the basin. We show that the AAIW is present in the lower core of the MU at a proportion of 12.9 +/- 8.2% and is absent in the upper core. Crown Copyright (C) 2011 Published by Elsevier Ltd. All rights reserved. |
author2 |
Laboratoire de Chimie Physique D'Orsay (LCPO) Université Paris-Sud - Paris 11 (UP11)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS) CHImie Marine (CHIM) Adaptation et diversité en milieu marin (AD2M) Station biologique de Roscoff Roscoff (SBR) Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Station biologique de Roscoff Roscoff (SBR) Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Louarn, Essyllt Morin, Pascal |
author_facet |
Louarn, Essyllt Morin, Pascal |
author_sort |
Louarn, Essyllt |
title |
Antarctic Intermediate Water influence on Mediterranean Sea Water outflow |
title_short |
Antarctic Intermediate Water influence on Mediterranean Sea Water outflow |
title_full |
Antarctic Intermediate Water influence on Mediterranean Sea Water outflow |
title_fullStr |
Antarctic Intermediate Water influence on Mediterranean Sea Water outflow |
title_full_unstemmed |
Antarctic Intermediate Water influence on Mediterranean Sea Water outflow |
title_sort |
antarctic intermediate water influence on mediterranean sea water outflow |
publisher |
HAL CCSD |
publishDate |
2011 |
url |
https://hal.archives-ouvertes.fr/hal-01251678 https://doi.org/10.1016/j.dsr.2011.05.009 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic North Atlantic |
genre_facet |
Antarc* Antarctic North Atlantic |
op_source |
ISSN: 0967-0637 Deep Sea Research Part I: Oceanographic Research Papers https://hal.archives-ouvertes.fr/hal-01251678 Deep Sea Research Part I: Oceanographic Research Papers, Elsevier, 2011, 58 (9), pp.932-942. ⟨10.1016/j.dsr.2011.05.009⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.dsr.2011.05.009 hal-01251678 https://hal.archives-ouvertes.fr/hal-01251678 doi:10.1016/j.dsr.2011.05.009 |
op_doi |
https://doi.org/10.1016/j.dsr.2011.05.009 |
container_title |
Deep Sea Research Part I: Oceanographic Research Papers |
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58 |
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9 |
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932 |
op_container_end_page |
942 |
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