Siberian Smoke Haze over European Territory of Russia in July 2016: Atmospheric Pollution and Radiative Effects

E. G. Semoutnikova; G. I. Gorchakov; S. A. Sitnov; V. M. Kopeikin; A. V. Karpov; I. A. Gorchakova; T. Ya. Ponomareva; A. A. Isakov; R. A. Gushchin; O. I. Datsenko; G. A. Kurbatov; G. A. Kuznetsov

doi:10.1134/S1024856018020124

Siberian Smoke Haze over European Territory of Russia in July 2016: Atmospheric Pollution and Radiative Effects

Authors: Semoutnikova E.G.¹, Gorchakov G.I.², Sitnov S.A.², Kopeikin V.M.², Karpov A.V.², Gorchakova I.A.², Ponomareva T.Y.³, Isakov A.A.², Gushchin R.A.², Datsenko O.I.², Kurbatov G.A.¹, Kuznetsov G.A.²
Affiliations:
1. Moscow State University
2. Obukhov Institute of Atmospheric Physics
3. Hydrometeorological Service of Russia
Issue: Vol 31, No 2 (2018)
Pages: 171-180
Section: Optics of Clusters, Aerosols, and Hydrosoles
URL: https://journals.rcsi.science/1024-8560/article/view/188350
DOI: https://doi.org/10.1134/S1024856018020124
ID: 188350

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Abstract

We have characterized the large-scale smoke pollution of the European territory of Russia (ETR) and adjoining areas in July 2017, caused by long-range transport from forest-fire areas in Siberia, confirmed by calculations of ten-day back trajectories of air mass motion to the ETR urban area, spanning Archangelsk to Rostov-on-Don. The smoke-laden ETR area with an AOD > 0.3 (average value being 0.43 and maximal value being 2.5) on July 25, 2016, covered 5 million km², and the total smoke mass was ~1.2 million tons. It is shown that the daily average mass concentration of aerosol with particle sizes less than 2.5 μm exceeded the corresponding maximum permissible concentration in the Moscow region during the period from July 24 to 27, 2016. The influence of local sources on aerosol and gas pollution of atmospheric air was estimated. The smoke haze in 2016 was found to be deficient in carbon monoxide as compared to smoke pollution in 2010. It is shown that the thermal and wind stratification in the atmospheric boundary layer markedly influenced the pollution level in the smoke-laden urban atmosphere. Smoke aerosol radiative effect was estimated. The average aerosol radiative forcings at the top and bottom of the atmosphere over ETR on July 25, 2016, were–29 and–53 W/m², and extreme forcings reached–112 and–215 W/m², respectively.

Keywords

large-scale smoke haze, long-range transport, smoke aerosol, aerosol mass concentration, carbon monoxide deficit, aerosol radiative forcing, MODIS, AERONET

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Siberian Smoke Haze over European Territory of Russia in July 2016: Atmospheric Pollution and Radiative Effects

Full Text

Abstract

Keywords

About the authors

Supplementary files