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Communication incl. Poster: BibTeX citation key:  Saunois
Saunois, M., Thouret, V., Minga, A., Mariscal, A., Sauvage, B., Solete, A., Agbangla, D., Nédélec, P., Mari, C. H., Reeves, C. E. & Schlager, H. 2009. Overview of the two year data set of ozone soundings over Cotonou and focus on the wet season 2006. Work presented at Third International AMMA Conference, July 20—24, at Ouagadougou, Burkina Faso.
Added by: roussot 2009-10-19 18:27:39
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Categories: Aerosol and Chemistry
Keywords: Chemistry, Interannual variability, Intraseasonal variability
Creators: Agbangla, Mari, Mariscal, Minga, Nédélec, Reeves, Saunois, Sauvage, Schlager, Solete, Thouret
Publisher: African Monsoon Multidisciplinary Analyses (Ouagadougou, Burkina Faso)
Collection: Third International AMMA Conference

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Abstract
In the frame of the African Monsoon Multidisciplinary Analysis (AMMA) program, a total of 98 vertical profiles over Cotonou, Benin, have been measured during a 26 month period (December 2004 – January 2007). These regular measurements widely document the seasonal and inter annual variability of ozone in both the troposphere and the lower stratosphere over West Africa for the first time. This data set is complementary to the MOZAIC observations made from Lagos between 0 and 12 km during the period 1998-2004. An overview of the seasonal and inter annual variabilities is given as well as an insight of the ozone distribution in the upper troposphere-lower stratosphere sampled for the first time in this region. The tropospheric ozone columns based on these in-situ data are assessed and compared to satellite measurements. In particular, we focus on the wet season which is characterized by biomass burning plumes coming from the southern hemisphere leading to ozone enhancement in the lower troposphere. This signature is discussed for the wet season 2006 through data analysis and modeling studies at various spatial scales.
Added by: roussot