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Journal Article: BibTeX citation key:  Diedhiou2001
Diedhiou, A., Janicot, S., Viltard, A. & De Félice, P. (2001) Composite patterns of easterly disturbances over West Africa and the tropical Atlantic: A climatology from the 1979-95 NCEP/NCAR reanalyses. IN Climate Dynamics, 18. 241–253.
Added by: Serge Janicot 2008-12-12 15:50:23    Last Edited by: Fanny Lefebvre 2010-11-17 10:10:08
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Categories: Monsoon system and its variability
Keywords: Intraseasonal variability
Creators: Diedhiou, De Félice, Janicot, Viltard
Collection: Climate Dynamics
Bibliographies: Prior150410

Peer reviewed
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Abstract
The horizontal and vertical structure of the 3–5-day and 6–9-day easterly waves over West Africa and tropical Atlantic are investigated. NCEP/NCAR reanalyses are used for the period 1979–1995 to produce a 17-year climatology of both 3–5-day and 6–9-day easterly waves. Composite patterns of convection, wind, temperature and vertical velocity are analysed with respect to the following: the modulation by 3–5-day and 6–9-day wave regimes; the contrasts between the ITCZ (5°N–10°N) and the Sahelo-Saharan band (15°N–20°N); the difference between land and ocean, and seasonal variations. Similarities and differences in the characteristics of the two wave regimes are identified.
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Added by: Fanny Lefebvre    Last Edited by: Fanny Lefebvre