Abnormal vertical distribution of organic aerosol over the south of Western Siberia in September 2018
M.Yu. Arshinov1, V.G. Arshinova1, B.D. Belan1, D.K. Davydov1, G.A. Ivlev1, A.S. Kozlov2, L.V. Kuibida2, T.M. Rasskazchikova1, D.V. Simonenkov1, G.N. Tolmachev1, A.V. Fofonov1
1V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, Tomsk, Russia
2V.V. Voevodsky Institute of Chemical Kinetics and Combustion of the Siberian Branch of the RAS, Novosibirsk, Russia
Keywords: аномалия, вертикальное распределение, органический аэрозоль, приземный слой, пограничный слой, свободная атмосфера, anomaly, vertical distribution, organic aerosol, surface layer, boundary layer, free atmosphere
Abstract
The abnormal vertical distribution of organic aerosol recorded on September 14, 2018, is analyzed on the basic of aircraft sounding data. The anomaly is that, unlike the long-term average profile, this flight has shown a maximal concentration in the boundary layer, which is more than an order of magnitude higher than the previously measured concentrations. The analysis of possible sources of aerosol particle precursors revealed a fairly large sector, in the territory of which there are boreal forests, which are sources of biogenic compounds, and objects of industrial infrastructure, which emit anthropogenic compounds.
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