Seasonal and interannual variability of aerosol characteristics according to the data of long-term (2011-2021) measurements at the Russian Scientific Center on the Spitzbergen Archipelago
D.M. Kabanov1, A.S. Maslovsky2, V.F. Radionov2, S.M. Sakerin1, O.R. Sidorova2, D.G. Chernov1
1V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, Tomsk, Russia
2Federal State Budgetary Institution "Arctic and Antarctic Research Institute", St. Petersburg, Russia
Keywords: aerosol optical depth, aerosol concentration, black carbon, annual behavior, interannual variability, Shpitzbergen Archipelago
Abstract
The results of the analysis of seasonal and interannual variability of the aerosol optical depth of the atmosphere (AOD), the aerosol volume concentration, and the mass concentration of black carbon in the surface layer obtained at observations in Barentsburg (Spitzbergen archipelago) in 2011-2021 are presented. The annual behavior of all parameters is characterized by two maxima: spring (or winter-spring) and summer, apparently due to the transport of pollutants from the middle latitudes in the winter-spring period and smoke aerosol in summer. In the interannual variability, there are significant negative trends in the fine AOT component (-0.012 over 11 years) and the mass concentration of the absorbing substance (by 46.7 ng/m3 over 10 years).
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