6533b82bfe1ef96bd128cec5
RESEARCH PRODUCT
Monsoon Multidisciplinary Analysis (AMMA) : an integrated project for understanding of the West African climate system and its human dimension
G. De CoëtlogonRomain RoehrigSally L. LavenderBernard FontaineFlore MounierRomain MarteauChristopher M. TaylorChristophe LavaysseSerge JanicotGuy CaniauxFabrice ChauvinGeorge N. KiladisStéphanie LerouxJean-philippe LaforeBenjamin SultanNathalie PhilipponNicholas M. J. Hallsubject
Atmospheric Science010504 meteorology & atmospheric sciences0207 environmental engineering02 engineering and technology[SDU.STU.ME]Sciences of the Universe [physics]/Earth Sciences/MeteorologyIntraseasonal variabilityMonsoonAtmospheric sciences01 natural sciencesWest africaWest African monsoonpredictabilityMonsoon onsetmonsoon onsetCrop yieldPrecipitationPredictability020701 environmental engineering0105 earth and related environmental sciencesintraseasonal variability[ SDU.STU.ME ] Sciences of the Universe [physics]/Earth Sciences/Meteorologycrop yieldScale (music)PredictabilityWest african13. Climate actionClimatologyEnvironmental scienceAtmospheric dynamicsdescription
International audience; 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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-01-01 |