Intraseasonal variability of the West African monsoon

Janicot, S, Caniaux, G, De Coetlogon, G, Fontaine, B, Hall, N, Kiladis, G, Lafore, J-P, Lavaysse, C, Lavender, SL, Leroux, S, Marteau, R, Mounier, F, Philippon, N, Roehrig, R, Sultan, B and Taylor, CM (2011) Intraseasonal variability of the West African monsoon. Atmospheric Science Letters, 12 (1). pp. 58-66. ISSN 1530-261X

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Abstract

The intraseasonal time scale is critical in West Africa where resources are highly rainfall dependent. Three main modes of variability have been identified, two with a mean periodicity of 15 days and one with a mean periodicity around 40 days. These modes have a regional scale and can strongly influence precipitation and convective activity. They are mainly controlled by atmospheric dynamics and land–surface interactions. They can also modulate the very specific phase of the African summer monsoon onset. A better knowledge of the mechanisms controlling this scale is necessary to improve its predictability.

Item Type: Article
Faculty \ School: Faculty of Science > School of Environmental Sciences
Depositing User: Rosie Cullington
Date Deposited: 17 Mar 2011 11:00
Last Modified: 24 Jul 2019 13:39
URI: https://ueaeprints.uea.ac.uk/id/eprint/26465
DOI: 10.1002/asl.280

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