Vestnik КRAUNC. Fiz.-Mat. nauki. 2023. vol. 45. no. 4. P. 81-87. ISSN 2079-6641

PHYSICS
https://doi.org/10.26117/2079-6641-2023-45-4-81-87
Research Article
Full text in English
MSC 86A10

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Lidar Studies of the Thermal Regime of the Middle Atmosphere over Tomsk in 2022

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 paper presents the results of lidar studies of the behavior of the thermal regime of the
middle atmosphere over Tomsk in the period for 2022. Note that such studies in the monitoring mode at the Institute of Atmospheric Optics SB RAS began in 1994 and are currently ongoing. Particular attention is paid to studying the manifestation of sudden disturbances in the stratosphere caused by winter stratospheric warming (SW). A description of lidar technology for studying the middle atmosphere and the results obtained on this topic in recent years can be found in works [1–8]. The indicated observation period covers periods of disturbed (SP winters 2021/22 and 2022/23), calm (summer) and transitional (spring, autumn) states of the middle atmosphere. Based on the accumulated experimental material, a number of features of the intra-annual dynamics of the thermal regime of the stratosphere for the region of Western Siberia have been established. Thus, winter stratospheric warming occurs annually from November to March, and for the long period of the year April – November, in the vast majority of cases, the vertical temperature distribution is in good agreement with the CIRA-86 model distribution. As primary information for analyzing the observation results for 2022, a data array of 93 total signals accumulated on individual nights was used. The interval of sounded heights extended from 10 to 70 km, the spatial resolution was 192 m. Reception of lidar signals was carried out in the photopulse counting mode with accumulation of 12 \times 10^4 launches of laser pulses (accumulation time – about two hours per night). Observations were carried out at night under cloudless sky conditions.

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. Lidar studies of the thermal regime of the middle atmosphere over Tomsk in 2022. Vestnik KRAUNC. Fiz.-mat. nauki. 2023, 45: 4, 81-87. EDN: BXLIDA. https://doi.org/10.26117/2079-6641-2023-45-4-81-87.

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.

∗Correspondence: E-mail: marichev@iao.ru, moto@iao.ru

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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