29 November 2016 Differences in seasonal average concentrations of aerosol and Black Carbon and particle size distributions from the data of monitoring in Tomsk and under background conditions in 2014-2015
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Proceedings Volume 10035, 22nd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 1003538 (2016) https://doi.org/10.1117/12.2248618
Event: XXII International Symposium Atmospheric and Ocean Optics. Atmospheric Physics, 2016, Tomsk, Russian Federation
Abstract
The mass concentrations of the dry basis of aerosol and Black Carbon (November 2013 – December 2015) and the volume particle size distributions (2015) measured in the monitoring mode under background conditions (Fonovaya (Background) Observatory, 60 km west of Tomsk) and under urban conditions (Akademgorodok District of Tomsk) have been used to determine the average seasonal contribution of the city to the aerosol characteristics. It has been found that the annual profile of the seasonal average city contribution to the aerosol and Black Carbon (BC) contents, as well as the volume fill factor of the submicron aerosol, has a maximum in winter and a minimum in summer. In the coarse size range, the maximal excess of the volume fill factor was observed in the spring period. The observed differences between the city and the background conditions for the relative content of Black Carbon in aerosol and the absorption coefficient of the particulate matter were largest in summer and smallest in winter. Under the background conditions, the annual behavior had an untypical feature, namely, the seasonal average aerosol concentrations in summer exceeded the values obtained for the spring and autumn seasons. Analytical parameterization of the annual profile of monthly average difference of the urban and background mass concentrations of aerosol and Black Carbon in the form of parabolic dependence has been proposed.
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E. P. Yausheva, V. S. Kozlov, B. D. Belan, M. Yu. Arshinov, D. G. Chernov, V. P. Shmargunov, "Differences in seasonal average concentrations of aerosol and Black Carbon and particle size distributions from the data of monitoring in Tomsk and under background conditions in 2014-2015", Proc. SPIE 10035, 22nd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 1003538 (29 November 2016); doi: 10.1117/12.2248618; https://doi.org/10.1117/12.2248618
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