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Communication incl. Poster: BibTeX citation key:  Pellarinb
Pellarin, T., Cohard, J.-M., Laurent, J.-P., Tran, T. & Tomasini, M. 2009. Surface soil moisture influence in initiation and maintenance of the West-African Monsoon system. Work presented at Third International AMMA Conference, July 20—24, at Ouagadougou, Burkina Faso.
Added by: pellarin 2009-09-15 15:04:44    Last Edited by: roussot 2009-11-15 20:09:08
Categories: Land surface-atmosphere feedback, Monsoon system and its variability
Keywords: Atmospheric Boundary Layer, Clouds - Convection
Creators: Cohard, Laurent, Pellarin, Tomasini, Tran
Publisher: African Monsoon Multidisciplinary Analyses (Ouagadougou, Burkina Faso)
Collection: Third International AMMA Conference

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Popularity index:  47.49%
Maturity index:  published

This study investigates the influence of the surface soil moisture on the atmospheric circulation, the initiation of the convection or the local persistence effects in precipitations. The approach is based on simultaneous observations of surface soil moisture estimates and cloud monitoring. High resolution soil moisture mapping (10x10 km², 30 min) were computed over West Africa using a rainfall accumulation product (EPSAT-SG) and satellite microwave measurements (AMSR-E) into a simple Antecedent Precipitation Index (API) model coupled with a microwave model (see Pellarin et al., this conference). The cloud monitoring is provided by the ISIS product developed at Meteo-France. The influence of the soil moisture patterns on the initiation of the convection is statistically analysed during the 2006 rainy season. In addition, the convective systems trajectories are investigated and compared to soil moisture maps.
Last Edited by: roussot