Long-term variability of aerosol and Black Carbon concentrations in the atmospheric surface layer as results of 20-year measurements at the IAO Aerosol Station

E. P. Yausheva; V. S. Kozlov; M. V. Panchenko; V. P. Shmargunov

doi:10.1117/12.2287375

30 November 2017 Long-term variability of aerosol and Black Carbon concentrations in the atmospheric surface layer as results of 20-year measurements at the IAO Aerosol Station

E. P. Yausheva, V. S. Kozlov, M. V. Panchenko, V. P. Shmargunov

Author Affiliations +

Proceedings Volume 10466, 23rd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 104663I (2017) https://doi.org/10.1117/12.2287375
Event: XXIII International Symposium, Atmospheric and Ocean Optics, Atmospheric Physics, 2017, Irkutsk, Russian Federation

Abstract

From the results of monitoring measurements at the Aerosol Station of IAO SB RAS in 1997-2016, the temporal dynamics of annual average aerosol concentrations was found to vary only slightly with an insignificant negative trend. The BC concentration demonstrates a stable tendency to decrease with a trend of -2.3% a year, which for 20 years has led to a total decrease in the imaginary part of the complex refractive index of the dry basis of particles from 0.062 to 0.044. The trends of variability of the aerosol and BC content for every season copy the dynamics of annual average values. The annual behavior of the aerosol and BC concentrations is characterized by a winter maximum and a summer minimum.

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E. P. Yausheva, V. S. Kozlov, M. V. Panchenko, and V. P. Shmargunov "Long-term variability of aerosol and Black Carbon concentrations in the atmospheric surface layer as results of 20-year measurements at the IAO Aerosol Station", Proc. SPIE 10466, 23rd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 104663I (30 November 2017); https://doi.org/10.1117/12.2287375

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