Vestnik КRAUNC. Fiz.-Mat. nauki. 2023. vol. 45. no. 4. P. 88-94. ISSN 2079-6641

Research Article
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MSC 86A10

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Intraannual Dynamics of Background Stratosphere Aerosol over Tomsk According to Lidar Monitoring Data

V. N. Marichev^\ast, D. A. Bochkovsky^\ast

V.E. Zuev Institute of Atmospheric Optics SB RAS (IAO SB RAS), 634055, Tomsk, 1, Academician Zuev square, Russia

Abstract. The article analyzes data on the intra-annual variability of the vertical-temporal structure of the background aerosol and its integral content in the stratosphere, obtained at the lidar complex of the high-altitude atmospheric sounding station of the IAO SB RAS for 2022. As primary information for the analysis, a data array of 93 total signals accumulated was used on select nights. The interval of sounded heights extended from 10 to 50-60 km, the spatial resolution was 192 m. Reception of lidar signals was carried out in the photopulse counting mode with accumulation of 12\times10^4 launches of laser pulses, the accumulation time of the total signal was 2 hours. The optical characteristic R(H) is the aerosol scattering ratio (H is the current height) as a parameter describing the vertical stratification of the aerosol. By definition, R(H) is the ratio of the sum of the aerosol and molecular backscattering coefficients to the molecular backscattering coefficient. Based on the monitoring results, as in previous years, a stable tendency for the accumulation of stratospheric aerosol in the cold season of the year was established with a maximum content in January and a decrease in the spring to virtual absence in June-July. From September, the aerosol content in the stratosphere begins to increase to its maximum value in winter. In the upper stratosphere (30-50 km) there is no background aerosol throughout the year. The article also presents the time dynamics of the complete filling of the stratosphere with background aerosol starting from 2017 to 2021 and supplemented by observations in 2022, expressed through the parameter of the integral aerosol backscattering coefficient B.

Key words: stratosphere, temperature, lidar.

Received: 17.10.2023; Revised: 11.12.2023; Accepted: 12.12.2023; First online: 15.12.2023

For citation. Marichev V. N., Bochkovsky D. A. Intraannual dynamics of background stratosphere aerosol over Tomsk according to lidar monitoring data. Vestnik KRAUNC. Fiz.-mat. nauki. 2023, 45: 4, 88-94. EDN: ESDHSG.

Funding. The research work was carried out within the framework of the state task of the V.E. Zuev Institute of Atmospheric Optics of the Siberian Branch of the Russian Academy of Sciences using the equipment of the “Atmosfera” Center for Collective Use with partial financial support from the Ministry of Education and Science of Russia (Agreement No. 075-15-2021-661).

Competing interests. There are no conflicts of interest regarding authorship and publication.

Contribution and Responsibility. All authors contributed to this article. Authors are solely responsible for providing the final version of the article in print. The final version of the manuscript was approved by all authors.

^\astCorrespondence: E-mail:,

The content is published under the terms of the Creative Commons Attribution 4.0 International License

© Marichev V. N., Bochkovsky D. A., 2023

© Institute of Cosmophysical Research and Radio Wave Propagation, 2023 (original layout, design, compilation)


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Information about authors

Marichev Valeriy Nikolaevich – D. Sci. (Phys & Math.), Profeesor, Main Staff Scientist, V.E. Zuev Institute of Atmospheric Optics SB RAS (IAO SB RAS), Russia, ORCID 0000-0002-7367-6605.

Bochkovskiy Dmitriy Andreevich – Ph. D. (Tech.), Staff Scientist, V.E. Zuev Institute of Atmospheric Optics SB RAS (IAO SB RAS), Russia, ORCID 0000-0002-9127-2065.