Evidence of abyssal eddies in the Brazil Basin.
International audience We report evidence of two deep cyclonic and two deep anticyclonic submesoscale eddies from World Oceanographic Circulation Experiment hydrographic casts made in the Brazil Basin. We infer that three of these were likely formed in or near the Deep Western Boundary Current (DWBC...
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ftunivnantes:oai:HAL:hal-00270846v1 2023-05-15T17:13:51+02:00 Evidence of abyssal eddies in the Brazil Basin. Weatherly, Georges Arhan, Michel Mercier, Herle Smethie Jr., William Department of Oceanography Florida State University Tallahassee (FSU) 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) Lamont-Doherty Earth Observatory (LDEO) Columbia University New York 2002 https://hal.science/hal-00270846 https://doi.org/10.1029/2000JC000648 en eng HAL CCSD Wiley-Blackwell info:eu-repo/semantics/altIdentifier/doi/10.1029/2000JC000648 hal-00270846 https://hal.science/hal-00270846 doi:10.1029/2000JC000648 ISSN: 2169-9275 EISSN: 2169-9291 Journal of Geophysical Research. Oceans https://hal.science/hal-00270846 Journal of Geophysical Research. Oceans, 2002, 107 (C4), pp.3027. ⟨10.1029/2000JC000648⟩ [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2002 ftunivnantes https://doi.org/10.1029/2000JC000648 2023-02-08T06:16:45Z International audience We report evidence of two deep cyclonic and two deep anticyclonic submesoscale eddies from World Oceanographic Circulation Experiment hydrographic casts made in the Brazil Basin. We infer that three of these were likely formed in or near the Deep Western Boundary Current (DWBC) of North Atlantic Deep Water (NADW), and thus had traveled eastward after formation. These eddies appear to be a new way for transporting NADW away from the DWBC to the ocean interior. One of the apparent cyclonic eddies appeared to be laterally in contact with one of the anticyclonic eddies. About 10 days later an attempt was made to resample the apparent eddies that had been in contact. These observations, although limited, are interpreted to indicate that they survived the encounter, that the cyclonic eddy had now moved to be beneath the anticyclonic one with each being somewhat thinner, and that they produced a new anticyclonic eddy by partially merging. Deep float observations [ Hogg and Owens, 1999 ] partially support the second inference. Article in Journal/Newspaper NADW North Atlantic Deep Water North Atlantic Université de Nantes: HAL-UNIV-NANTES Journal of Geophysical Research 107 C4 |
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Open Polar |
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Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
spellingShingle |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography Weatherly, Georges Arhan, Michel Mercier, Herle Smethie Jr., William Evidence of abyssal eddies in the Brazil Basin. |
topic_facet |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
International audience We report evidence of two deep cyclonic and two deep anticyclonic submesoscale eddies from World Oceanographic Circulation Experiment hydrographic casts made in the Brazil Basin. We infer that three of these were likely formed in or near the Deep Western Boundary Current (DWBC) of North Atlantic Deep Water (NADW), and thus had traveled eastward after formation. These eddies appear to be a new way for transporting NADW away from the DWBC to the ocean interior. One of the apparent cyclonic eddies appeared to be laterally in contact with one of the anticyclonic eddies. About 10 days later an attempt was made to resample the apparent eddies that had been in contact. These observations, although limited, are interpreted to indicate that they survived the encounter, that the cyclonic eddy had now moved to be beneath the anticyclonic one with each being somewhat thinner, and that they produced a new anticyclonic eddy by partially merging. Deep float observations [ Hogg and Owens, 1999 ] partially support the second inference. |
author2 |
Department of Oceanography Florida State University Tallahassee (FSU) 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) Lamont-Doherty Earth Observatory (LDEO) Columbia University New York |
format |
Article in Journal/Newspaper |
author |
Weatherly, Georges Arhan, Michel Mercier, Herle Smethie Jr., William |
author_facet |
Weatherly, Georges Arhan, Michel Mercier, Herle Smethie Jr., William |
author_sort |
Weatherly, Georges |
title |
Evidence of abyssal eddies in the Brazil Basin. |
title_short |
Evidence of abyssal eddies in the Brazil Basin. |
title_full |
Evidence of abyssal eddies in the Brazil Basin. |
title_fullStr |
Evidence of abyssal eddies in the Brazil Basin. |
title_full_unstemmed |
Evidence of abyssal eddies in the Brazil Basin. |
title_sort |
evidence of abyssal eddies in the brazil basin. |
publisher |
HAL CCSD |
publishDate |
2002 |
url |
https://hal.science/hal-00270846 https://doi.org/10.1029/2000JC000648 |
genre |
NADW North Atlantic Deep Water North Atlantic |
genre_facet |
NADW North Atlantic Deep Water North Atlantic |
op_source |
ISSN: 2169-9275 EISSN: 2169-9291 Journal of Geophysical Research. Oceans https://hal.science/hal-00270846 Journal of Geophysical Research. Oceans, 2002, 107 (C4), pp.3027. ⟨10.1029/2000JC000648⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2000JC000648 hal-00270846 https://hal.science/hal-00270846 doi:10.1029/2000JC000648 |
op_doi |
https://doi.org/10.1029/2000JC000648 |
container_title |
Journal of Geophysical Research |
container_volume |
107 |
container_issue |
C4 |
_version_ |
1766071034075676672 |