Results of an experiment on joint lidar and balloon sounding of the troposphere and stratosphere

The current problem of climate change requires studying changes in the composition and properties of the atmosphere, affecting its radiation balance. Obtaining knowledge in this direction is possible through regular measurements of climate-forming components and atmospheric characteristics and their subsequent analysis. There are contact and remote methods and means of sensing the atmosphere at its different altitude levels, including aerological, aircraft, satellite, lidar and rocket. This paper proposes a technology for monitoring the aerosol component based on remote (lidar) and contact (aerological) optical sounding. The results of simultaneous remote (lidar) and direct (sonde) measurements of the vertical distribution of aerosol loading in the troposphere and stratosphere, carried out on January 27-30, 2022 and March 15-16, 2023 in Tomsk, are presented. The purpose of the experiment was to conduct joint lidarballoon measurements and validate aerosol backscatter profiles in the upper troposphere and stratosphere to create an all-weather lidar-balloon monitoring system of spatiotemporal and microphysical characteristics of aerosol. Good agreement is demonstrated in the obtained vertical profiles of the value of the backscatter ratio R(H) for close wavelengths (528 and 532 nm for the aerosol backscatter sonde and lidar, respectively). To restore the microphysical parameters of an aerosol during joint lidar-balloon experiments, the possibility of expanding 2-wave (355 and 532 nm) lidar measurements with an additional set of wavelengths (470, 850, 940 nm) using an optical balloon aerosol sonde was shown.