Russian Fires in 2010: Results from the ALANIS Smoke Plume Project

Abstract : The ALANIS (Atmosphere-LANd Integrated Study) Smoke Plume project is a study funded by the ESA's Support to Science Element (STSE) dedicated to the monitoring of the fire aerosol and trace gases dispersion over Eurasia from multi-mission EO-based data, in link with the scientific issues of land-atmosphere processes in the iLEAPS community. The TM5 model is used to ingest several new EO-products, derived from MERIS and AATSR. Moreover, the IASI CO product is used to constrain emissions. New products include burned areas (derived from MERIS), forest fire emissions amounts, and smoke plume injection heights (SPIH, derived from AATSR). CO emissions and SPIH have been derived for July and August 2010, a period that includes heavy biomass burning around the Moscow area. Using CO observations from IASI in the 4D-VAR framework of TM5 allows us to find CO emissions that are optimally consistent with the available observations. As an example of this procedure, figure 1 shows CO columns modelled with the optimized emissions in comparison with the IASI observations. We found that the initial emission estimates that were obtained from the MERIS burned areas (0.6 Tg CO from 25/7/2010 up to 13/8/2010 around Moscow) were insufficient to match the IASI observations. Figure 2 shows the initial and optimized emissions, which are more than 10 times as high (9.3 Tg CO in total). We also found that taking into account SPIH had only a small effect on the inferred emissions, making them slightly larger (9.5 Tg CO). Finally, a comparison with independent measurements and other emission estimates in literature shows that the new optimized emissions are in better correspondence. Moreover, it is recommended to augment the MERIS burned area with observations from MODIS to obtain a more realistic initial emission distribution.
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Submitted on : Sunday, September 16, 2012 - 6:55:07 PM
Last modification on : Tuesday, May 14, 2019 - 11:09:24 AM

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  • HAL Id : hal-00732735, version 1

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M. Krol, J.-P. Muller, W. Peters, V. Yershov, D. Fisher, et al.. Russian Fires in 2010: Results from the ALANIS Smoke Plume Project. ESA Conference on Advances in Atmospheric Science and Applications (ATMOS 2012), Jun 2012, Bruges, Belgium. ⟨hal-00732735⟩

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