Optika Atmosfery i Okeana Journal

Vol. 24, issue 07, article # 5

Sitnov S. A. Analysis of satellite observations of aerosol optical properties and gaseous species over Central District of Russian Federation in the period of abnormally high summer temperature and mass wild fires in 2010. // Optika Atmosfery i Okeana. 2011. V. 24. No. 07. P. 572-581 [in Russian].
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Abstract:

The optical properties of aerosol ( t_0.55, w_0.50, and absorbing aerosol index) and the contents of atmospheric gaseous species (СО, NO₂, SO₂, CH₂O, O₃, H₂O), obtained with the help of the satellite instruments MODIS, MOPITT, and OMI over the territory of the central region of Russian Federation (52-59°N, 29-45°E) in the period from April till September 2010 are analyzed. Abnormal increasing of temperature and the changes in atmospheric composition due to the forest and peatbog fires are clearly revealed in the interrelated changes of most of the atmospheric parameters. In the period from the middle of July till August, 7, the regionally averaged value of t0.55 was icreased more than by 20 times (from 0.09 to 2.12) and the CO total column was increased more than twice (from 1.9 ^.10¹⁸ to 4.0 ^.10¹⁸ molec. ^. см^-2), while in July-August the tropospheric NO₂ content in 2010 was 65% higher than in 2009. The spatial-temporal evolution of aerosol characteristics and gaseous species before, during, and after mass wild fires is studied, as well as radiation effects of smoke are analyzed.

Keywords:

forest and peatbog fires, satellite monitoring, biomass burning products, MODIS, MOPITT, OMI