LIDAR RESEARCH OF STRATOSPHERIC AEROSOL OVER TOMSK IN 2024

The report presents studies of the intra-annual variability of the vertical-temporal structure of background aerosol and its integral filling in the stratosphere based on the analysis of the optical characteristics of aerosol. The results were obtained at the lidar complex of the high-altitude atmospheric sounding station of the IAO SB RAS for 2024. According to the monitoring data, as in previous years, a stable trend of aerosol accumulation in the lower stratosphere in the cold period of the year with a maximum content in January and a decrease in the spring to its practical absence in June-July was established. From September, the aerosol content in the lower stratosphere begins to increase to its maximum value in the winter. In the upper stratosphere (30-50 km), background aerosol is practically absent throughout the year.