Janicot Serge, Caniaux G., Chauvin F., de Coëtlogon G., Fontaine B., Hall N., Kiladis G., Lafore J. P., Lavaysse C., Lavender S. L., Leroux S., Marteau R., Mounier F., Philippon N., Roehrig R., Sultan Benjamin, Taylor C. M. (2011). Intraseasonal variability of the West African monsoon. In :
Monsoon Multidisciplinary Analysis (AMMA) : an integrated project for understanding of the West African climate system and its human dimension. Atmospheric Science Letters, 12 (1), p. 58-66. ISSN 1530-261X.
Titre du document
Intraseasonal variability of the West African monsoon
Année de publication
2011
Auteurs
Janicot Serge, Caniaux G., Chauvin F., de Coëtlogon G., Fontaine B., Hall N., Kiladis G., Lafore J. P., Lavaysse C., Lavender S. L., Leroux S., Marteau R., Mounier F., Philippon N., Roehrig R., Sultan Benjamin, Taylor C. M.
In
Monsoon Multidisciplinary Analysis (AMMA) : an integrated project for understanding of the West African climate system and its human dimension
Source
Atmospheric Science Letters, 2011,
12 (1), p. 58-66 ISSN 1530-261X
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. Copyright.
Plan de classement
Sciences du milieu [021]
;
Limnologie physique / Océanographie physique [032]
Localisation
Fonds IRD [F B010053181]
Identifiant IRD
fdi:010053181
