Estimate of contribution from different variability scales to variations in aerosol characteristic on Spitzbergen Archipelago

Abstract

Based on the ten-year (2011-2021) measurements of the aerosol optical depth of the atmosphere, and the near-surface volume concentration of aerosol and mass concentration of black carbon (eBC) in the Barentsburg settlement (Spitzbergen Archipelago), we estimate the relationship between the contributions from different time variability scales to their total variations. It is noted that synoptic-scale variations make the main contribution (30-70%) for all characteristics. The effect of the diurnal rhythms, making up about 30%, is just manifested for eBC and concentrations of submicron aerosol. The contribution of seasonal and interannual variations does not generally exceed 10-20%.