Equatorial upper-ocean dynamics and their interaction with the West African monsoon.

Brandt, Peter , Caniaux, Guy, Bourlès, Bernard, Lazar, Alban, Dengler, Marcus , Funk, Andreas, Hormann, Verena, Giordani, Herve and Marin, Frederic (2011) Equatorial upper-ocean dynamics and their interaction with the West African monsoon. Open Access Atmospheric Science Letters, 12 . pp. 24-30. DOI 10.1002/asl.287.

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Abstract

Zonal wind anomalies in the western equatorial Atlantic during late boreal winter to early summer precondition boreal summer cold/warm events in the eastern equatorial Atlantic (EEA) that manifest in a strong interannual Atlantic cold tongue (ACT) variability. Local intraseasonal wind fluctuations, linked to the St. Helena anticyclone, contribute to the variability of cold tongue onset and strength, particularly during years with preconditioned
shallow thermoclines. The impact of cold tongue sea surface temperature (SST) anomalies on the wind field in the Gulf of Guinea is assessed. It contributes to the northward migration of humidity and convection and possibly the West African monsoon (WAM) jump. Copyright @ 2010 Royal Meteorological Society

Document Type: Article
Keywords: Meteorology; equatorial Atlantic; cold tongue; West African monsoon
Research affiliation: OceanRep > GEOMAR > FB1 Ocean Circulation and Climate Dynamics > FB1-PO Physical Oceanography
OceanRep > The Future Ocean - Cluster of Excellence
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1002/asl.287
ISSN: 1530-261X
Projects: Future Ocean
Expeditions/Models/Experiments:
Date Deposited: 11 Nov 2010 10:01
Last Modified: 31 May 2016 13:46
URI: http://oceanrep.geomar.de/id/eprint/10007

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