South Equatorial Undercurrent in the western to central tropical Atlantic.

Fischer, Jürgen , Hormann, Verena, Brandt, Peter , Schott, Friedrich, Rabe, B. and Funk, Andreas (2008) South Equatorial Undercurrent in the western to central tropical Atlantic. Open Access Geophysical Research Letters, 35 (L21601). DOI 10.1029/2008GL035753.

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Abstract

The South Equatorial Undercurrent (SEUC) in the western to central tropical Atlantic is investigated by a combination of shallow floats, with a few acoustically tracked, shipboard current measurements and hydrography. Float trajectories show a well confined SEUC revealing large standing meanders near its western origin. Transports determined from 31 sections across the SEUC increase from 5.6 Sv at 35°W near the western boundary to 10.2 Sv 800 km farther east. Internal recirculations north and south of the SEUC were indicated by the float trajectories and a weak transport reduction farther along its eastward progression is observed. The deep part of the South Equatorial Current carries on both sides of the SEUC interior water masses westward, and supplies almost 5 Sv to the SEUC between 35°W and 28°W, or about half of the SEUC transport in the interior tropical Atlantic.

Document Type: Article
Keywords: tropical Atlantic; circulation; Argo floats
Research affiliation: OceanRep > GEOMAR > FB1 Ocean Circulation and Climate Dynamics > FB1-PO Physical Oceanography
AWI
OceanRep > The Future Ocean - Cluster of Excellence
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1029/2008GL035753
ISSN: 0094-8276
Projects: Future Ocean
Expeditions/Models/Experiments:
Date Deposited: 03 Dec 2008 16:52
Last Modified: 03 Jul 2019 11:30
URI: http://oceanrep.geomar.de/id/eprint/2000

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