2007 , Volume 12, № 5, p.68-77

Gas components emitted at fires may propagate far away from the source of fire due to the atmospheric circulation. Therefore one of the important problems is a description of the spatial and temporal distribution of the smoke aerosol using actual meteorological information and the data on fires. For an estimation of the territory covered by the fire smoke, a technique for restoration of the values of concentration of the gas components is proposed which utilizes both meteorological and fire data. Pollutant concentrations in the given region were estimated using the reconstruction of the backward trajectories. Data assimilation technique was used in the restoration process. Numerical experiments on estimation of the gas component concentrations were compared to the actual trajectories of smoke plumes obtained by NOAA satellites.