Vol. 32, issue 06, article # 4

Zhdanova E. Yu., Khlestova Yu. O., Chubarova N. E. Trends in parameters of atmospheric aerosols in Moscow according to long-term AERONET observations. // Optika Atmosfery i Okeana. 2019. V. 32. No. 06. P. 443–448. DOI: 10.15372/AOO20190604 [in Russian].
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Abstract:

Trends in aerosol optical thickness (AOT) in Moscow are determined based on long-term (2002–2016) AERONET network observations. The trend in AOT at a wavelength of 550 nm (AOT550) is characterized by the negative sign in warm season. It is shown that trends in AOT are negative and have different values in different months. The largest negative trend is in April, if the impact of forest fires in other months of the warm season is neglected. The joint analysis of changes in AOT550 and indices of atmospheric circulation is performed. It is shown that the Scandinavian index has an additional effect on the interannual changes in AOT550 in April. It is ascertained that fine weakly-absorbing aerosol is the most representative for Moscow. No pronounced changes in the frequency of aerosol types have been identified in recent decades.

Keywords:

atmospheric aerosols, aerosol optical thickness, AERONET, long-term measurements, Moscow

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