Home – Home – Jornals – Atmospheric and Oceanic Optics 2024 number 9

Ozone is a strong oxidizer, so monitoring the state of the ozonosphere is one of the most important tasks in ensuring the safety of human life and health. There are a number of methods for studying ozone, among which a special place is occupied by the lidar method of remote detection and identification using selective absorption of laser radiation due to its has maximal sensitivity. V.E. Zuev Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences solved the problem of monitoring the entire ozonosphere over Tomsk by combining existing lidar systems: three measuring systems of the Siberian Lidar Station and a mobile ozone lidar. Lidars are designed to study the ozonosphere using the method of differential absorption and scattering, as well as to study aerosol fields using single elastic scattering. The systems are based on SOLAR and LOTIS TII Nd:YAG lasers, a Lambda Physik laser, and receiving Cassegrain (0,35 m diameter) and Newton (0,5 m diameter) telescopes. Lidars operate in the photon counting mode and record lidar signals with a spatial resolution of 1.5 to 160 m at probing wavelengths of 299/341 nm in the altitude ranges ~ 0.1-12 km and ~ 5-20 km, and 308/353 nm in the altitude range ~ 15-45 km. By combining three measuring systems, a full-scale experiment of lidar sensing of the atmosphere in Tomsk was carried out. The result of retrieval of the vertical profile of ozone concentration is presented. For the first time in Russia, lidars have covered the entire ozonosphere. The lidar complex sounding results will be used in the network of Roshydromet stations, in adjusting the quasi-three-year model of the vertical distribution of ozone concentration and aerosol, in comparison of lidar and satellite data, and in assessing the influence of climate-forming factors in Western Siberia.