Global estimates of biomass burning emissions based on satellite imagery for the year 2000

5613 Tg DM yr � 1 , of which 2814 Tg DM yr � 1 is associated with open burning and the remainder with biofuels. The total emissions are 2290 Tg C yr � 1 (as CO2), 496 Tg CO yr � 1 , 32.2 Tg CH4 yr � 1 , 38.0 Tg NHMC yr � 1 , 11.5 Tg HCHO yr � 1 , 9.2 Tg CH3OH yr � 1 , 21.7 Tg CH3COOH yr � 1 , and 38.3 Tg PM2.5 yr � 1 . Our estimates for CO2, CO, and CH4 emissions from open biomass burning combined with estimates of those from biofuel burning are in the range of the estimates constrained by chemical transport models and measurements. Our use of spatially and temporally explicit data and these comparisons to global models support the conclusion that our source map offers improvements in the emission data sets for estimating the global effects of biomass burning. INDEXTERMS:0322 Atmospheric Composition and Structure: Constituent sources and sinks; 1610 Global Change: Atmosphere (0315, 0325); 0315 Atmospheric Composition and Structure: Biosphere/atmosphere interactions; 0325 Atmospheric Composition and Structure: Evolution of the atmosphere; 4805 Oceanography: Biological and Chemical: Biogeochemical cycles (1615); KEYWORDS: biomass burning, burned area, fuel load Citation: Ito, A., and J. E. Penner (2004), Global estimates of biomass burning emissions based on satellite imagery for the year 2000, J. Geophys. Res., 109, D14S05, doi:10.1029/2003JD004423.

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