Deep circulation in the equatorial Atlantic Ocean
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 h...
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ftarchimer:oai:archimer.ifremer.fr:10369 2023-05-15T17:13:50+02:00 Deep circulation in the equatorial Atlantic Ocean Gouriou, Y Andrie, C Bourles, B Freudenthal, S Arnault, S Aman, A Eldin, G Du Penhoat, Y Baurand, F Gallois, F Chuchla, R 2001-03 application/pdf https://archimer.ifremer.fr/doc/00000/10369/9567.pdf https://archimer.ifremer.fr/doc/00000/10369/ eng eng Amer Geophysical Union https://archimer.ifremer.fr/doc/00000/10369/9567.pdf https://archimer.ifremer.fr/doc/00000/10369/ 2001 AGU info:eu-repo/semantics/openAccess restricted use Geophysical Research Letters (0094-8276) (Amer Geophysical Union), 2001-03 , Vol. 28 , N. 5 , P. 819-822 text Publication info:eu-repo/semantics/article 2001 ftarchimer 2021-09-23T20:18:03Z 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 degrees 30'N and 1 degrees 30'S, alternating eastward-westward currents with short vertical scale, surrounded by columns of eastward currents (the Extra Equatorial Jets or EEJs) at 2 degreesN and 2 degreesS. 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 Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
description |
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 degrees 30'N and 1 degrees 30'S, alternating eastward-westward currents with short vertical scale, surrounded by columns of eastward currents (the Extra Equatorial Jets or EEJs) at 2 degreesN and 2 degreesS. In addition to direct velocity measurements, tracer distributions give indications of water-mass feeding of the EDJs and EEJs by the DWBC. |
format |
Article in Journal/Newspaper |
author |
Gouriou, Y Andrie, C Bourles, B Freudenthal, S Arnault, S Aman, A Eldin, G Du Penhoat, Y Baurand, F Gallois, F Chuchla, R |
spellingShingle |
Gouriou, Y Andrie, C Bourles, B Freudenthal, S Arnault, S Aman, A Eldin, G Du Penhoat, Y Baurand, F Gallois, F Chuchla, R Deep circulation in the equatorial Atlantic Ocean |
author_facet |
Gouriou, Y Andrie, C Bourles, B Freudenthal, S Arnault, S Aman, A Eldin, G Du Penhoat, Y Baurand, F Gallois, F Chuchla, R |
author_sort |
Gouriou, Y |
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 |
Amer Geophysical Union |
publishDate |
2001 |
url |
https://archimer.ifremer.fr/doc/00000/10369/9567.pdf https://archimer.ifremer.fr/doc/00000/10369/ |
genre |
NADW North Atlantic Deep Water North Atlantic |
genre_facet |
NADW North Atlantic Deep Water North Atlantic |
op_source |
Geophysical Research Letters (0094-8276) (Amer Geophysical Union), 2001-03 , Vol. 28 , N. 5 , P. 819-822 |
op_relation |
https://archimer.ifremer.fr/doc/00000/10369/9567.pdf https://archimer.ifremer.fr/doc/00000/10369/ |
op_rights |
2001 AGU info:eu-repo/semantics/openAccess restricted use |
_version_ |
1766071018829381632 |