Deep circulation in the equatorial Atlantic Ocean
International audience In the Atlantic Ocean, the northward export of warm surface water is compensated by a southward flow of cold North Atlantic Deep Water (NADW). The NADW is transported southward along the American continental margin within the Deep Western Boundary Current (DWBC). Some tracer a...
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ftunivlyon1:oai:HAL:hal-01834324v1 2023-05-15T17:13:50+02:00 Deep circulation in the equatorial Atlantic Ocean Gouriou, yves Andrié, Chantal Bourlès, Bernard Freudenthal, S. Arnault, Sabine Aman, A. Eldin, Gérard Du Penhoat, yves Baurand, François Gallois, Francis Chuchla, Rémy University IRD Noumea Institut de Recherche pour le Développement (IRD Nouvelle-Calédonie ) Laboratoire d'océanographie dynamique et de climatologie (LODYC) Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS) Institut de Recherche pour le Développement (IRD) Université de Cocody Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) 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)-Université Fédérale Toulouse Midi-Pyrénées-Météo-France -Institut de Recherche pour le Développement (IRD)-Centre National d'Études Spatiales Toulouse (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS) 2001-03-01 https://hal.archives-ouvertes.fr/hal-01834324 https://hal.archives-ouvertes.fr/hal-01834324/document https://hal.archives-ouvertes.fr/hal-01834324/file/2000GL012326.pdf https://doi.org/10.1029/2000GL012326 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2000GL012326 hal-01834324 https://hal.archives-ouvertes.fr/hal-01834324 https://hal.archives-ouvertes.fr/hal-01834324/document https://hal.archives-ouvertes.fr/hal-01834324/file/2000GL012326.pdf doi:10.1029/2000GL012326 IRD: fdi:010025549 info:eu-repo/semantics/OpenAccess ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.archives-ouvertes.fr/hal-01834324 Geophysical Research Letters, American Geophysical Union, 2001, 28 (5), pp.819 - 822. ⟨10.1029/2000GL012326⟩ • 2 B. Bourl•s 3 S. Freudenthal 2 S. Arnault 2 A. Aman 4 G. Eldin 5 Y. du Penhoat 5 F. Baurand 3 F. Gallois I and R. Chuchla 3 [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] info:eu-repo/semantics/article Journal articles 2001 ftunivlyon1 https://doi.org/10.1029/2000GL012326 2022-06-14T22:43:41Z International audience In the Atlantic Ocean, the northward export of warm surface water is compensated by a southward flow of cold North Atlantic Deep Water (NADW). The NADW is transported southward along the American continental margin within the Deep Western Boundary Current (DWBC). Some tracer and float observations have shown that part of the DWBC water flows eastward along the equator. Here we present three meridional velocity sections which give an instantaneous image of the top‐to‐bottom zonal circulation along the equatorial Atlantic. They reveal the presence of Equatorial Deep Jets (EDJs) between 1°30′N and 1°30′S, alternating eastward‐westward currents with short vertical scale, surrounded by columns of eastward currents (the Extra Equatorial Jets or EEJs) at 2°N and 2°S. In addition to direct velocity measurements, tracer distributions give indications of water‐mass feeding of the EDJs and EEJs by the DWBC. Article in Journal/Newspaper NADW North Atlantic Deep Water North Atlantic HAL Lyon 1 (University Claude Bernard Lyon 1) Geophysical Research Letters 28 5 819 822 |
institution |
Open Polar |
collection |
HAL Lyon 1 (University Claude Bernard Lyon 1) |
op_collection_id |
ftunivlyon1 |
language |
English |
topic |
• 2 B. Bourl•s 3 S. Freudenthal 2 S. Arnault 2 A. Aman 4 G. Eldin 5 Y. du Penhoat 5 F. Baurand 3 F. Gallois I and R. Chuchla 3 [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] |
spellingShingle |
• 2 B. Bourl•s 3 S. Freudenthal 2 S. Arnault 2 A. Aman 4 G. Eldin 5 Y. du Penhoat 5 F. Baurand 3 F. Gallois I and R. Chuchla 3 [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] Gouriou, yves Andrié, Chantal Bourlès, Bernard Freudenthal, S. Arnault, Sabine Aman, A. Eldin, Gérard Du Penhoat, yves Baurand, François Gallois, Francis Chuchla, Rémy Deep circulation in the equatorial Atlantic Ocean |
topic_facet |
• 2 B. Bourl•s 3 S. Freudenthal 2 S. Arnault 2 A. Aman 4 G. Eldin 5 Y. du Penhoat 5 F. Baurand 3 F. Gallois I and R. Chuchla 3 [PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] |
description |
International audience In the Atlantic Ocean, the northward export of warm surface water is compensated by a southward flow of cold North Atlantic Deep Water (NADW). The NADW is transported southward along the American continental margin within the Deep Western Boundary Current (DWBC). Some tracer and float observations have shown that part of the DWBC water flows eastward along the equator. Here we present three meridional velocity sections which give an instantaneous image of the top‐to‐bottom zonal circulation along the equatorial Atlantic. They reveal the presence of Equatorial Deep Jets (EDJs) between 1°30′N and 1°30′S, alternating eastward‐westward currents with short vertical scale, surrounded by columns of eastward currents (the Extra Equatorial Jets or EEJs) at 2°N and 2°S. In addition to direct velocity measurements, tracer distributions give indications of water‐mass feeding of the EDJs and EEJs by the DWBC. |
author2 |
University IRD Noumea Institut de Recherche pour le Développement (IRD Nouvelle-Calédonie ) Laboratoire d'océanographie dynamique et de climatologie (LODYC) Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS) Institut de Recherche pour le Développement (IRD) Université de Cocody Laboratoire d'études en Géophysique et océanographie spatiales (LEGOS) Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3) Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP) 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)-Université Fédérale Toulouse Midi-Pyrénées-Météo-France -Institut de Recherche pour le Développement (IRD)-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 |
Gouriou, yves Andrié, Chantal Bourlès, Bernard Freudenthal, S. Arnault, Sabine Aman, A. Eldin, Gérard Du Penhoat, yves Baurand, François Gallois, Francis Chuchla, Rémy |
author_facet |
Gouriou, yves Andrié, Chantal Bourlès, Bernard Freudenthal, S. Arnault, Sabine Aman, A. Eldin, Gérard Du Penhoat, yves Baurand, François Gallois, Francis Chuchla, Rémy |
author_sort |
Gouriou, yves |
title |
Deep circulation in the equatorial Atlantic Ocean |
title_short |
Deep circulation in the equatorial Atlantic Ocean |
title_full |
Deep circulation in the equatorial Atlantic Ocean |
title_fullStr |
Deep circulation in the equatorial Atlantic Ocean |
title_full_unstemmed |
Deep circulation in the equatorial Atlantic Ocean |
title_sort |
deep circulation in the equatorial atlantic ocean |
publisher |
HAL CCSD |
publishDate |
2001 |
url |
https://hal.archives-ouvertes.fr/hal-01834324 https://hal.archives-ouvertes.fr/hal-01834324/document https://hal.archives-ouvertes.fr/hal-01834324/file/2000GL012326.pdf https://doi.org/10.1029/2000GL012326 |
genre |
NADW North Atlantic Deep Water North Atlantic |
genre_facet |
NADW North Atlantic Deep Water North Atlantic |
op_source |
ISSN: 0094-8276 EISSN: 1944-8007 Geophysical Research Letters https://hal.archives-ouvertes.fr/hal-01834324 Geophysical Research Letters, American Geophysical Union, 2001, 28 (5), pp.819 - 822. ⟨10.1029/2000GL012326⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2000GL012326 hal-01834324 https://hal.archives-ouvertes.fr/hal-01834324 https://hal.archives-ouvertes.fr/hal-01834324/document https://hal.archives-ouvertes.fr/hal-01834324/file/2000GL012326.pdf doi:10.1029/2000GL012326 IRD: fdi:010025549 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2000GL012326 |
container_title |
Geophysical Research Letters |
container_volume |
28 |
container_issue |
5 |
container_start_page |
819 |
op_container_end_page |
822 |
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1766071032902320128 |