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Updated African biomass burning emission inventories in the framework of the AMMA-IDAF program, with an evaluation of combustion aerosols

by C. Liousse, B. Guillaume, J. M. Gr??goire, M. Mallet, C. Galy, V. Pont, A. Akpo, M. Bedou, P. Cast??ra, L. Dungall, E. Gardrat, C. Granier, A. Konar??, F. Malavelle, A. Mariscal, A. Mieville, R. Rosset, D. Ser??a, F. Solmon, F. Tummon, E. Assamoi, V. Yobou??, P. Van Velthoven show all authors
Atmospheric Chemistry and Physics ()

Abstract

African biomass burning emission inventories for gaseous and particulate species have been constructed at a resolution of 1 km by 1km with daily coverage for the 2000– 2007 period. These inventories are higher than the GFED2 inventories, which are currently widely in use. Evaluation specifically focusing on combustion aerosol has been carried out with the ORISAM-TM4 global chemistry transport model which includes a detailed aerosol module. This paper compares modeled results with measurements of surface BC concentrations and scattering coefficients from the AMMA Enhanced Observations period, aerosol optical depths and single scattering albedo from AERONET sunphotometers, LIDAR vertical distributions of extinction coefficients as well as satellite data. Aerosol seasonal and interannual evolutions over the 2004–2007 period observed at regional scale and more specifically at the Djougou (Benin) and Banizoumbou (Niger) AMMA/IDAF sites are well reproduced by our global model, indicating that our biomass burning emission inventory appears reasonable.

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