Analysis of the dynamics of the boundary layer of the atmosphere during the passage of mesoscale convective systems on the example of the city of Tomsk

Vera A. Zhukova; Nikolay P. Krasnenko; Konstantin N. Pustovalov; Petr M. Nagorskiy; Tatyana S. Koshikova; Alexander S. Rakov

doi:10.1117/12.2603448

15 December 2021 Analysis of the dynamics of the boundary layer of the atmosphere during the passage of mesoscale convective systems on the example of the city of Tomsk

Vera A. Zhukova, Nikolay P. Krasnenko, Konstantin N. Pustovalov, Petr M. Nagorskiy, Tatyana S. Koshikova, Alexander S. Rakov

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Proceedings Volume 11916, 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics; 119166R (2021) https://doi.org/10.1117/12.2603448
Event: 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 2021, Moscow, Russian Federation

Abstract

The case of successive passage of two mesoscale convective systems (a mesoscale convective complex and a squall line) in the vicinity of Tomsk, which was observed on 26 June 2020 is analyzed. It is noted that the passage of the mesoscale convective complex corresponds to a sharp change in the structure of the vertical temperature profile and a high value of the vertical temperature gradient. The time interval that precedes the development of thunderclouds corresponds to the value of the vertical temperature gradient for the IMCES SB RAS territory – 2.18 °/100 m. Sudden changes in values from the positive vertical temperature gradient to the negative and vice versa correspond to the passage of the squall line. The data of the electric field potential gradient profile and the intensity of thunderstorm activity allow us to consider in more detail the dynamics of changes in the atmospheric boundary layer.

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Vera A. Zhukova, Nikolay P. Krasnenko, Konstantin N. Pustovalov, Petr M. Nagorskiy, Tatyana S. Koshikova, and Alexander S. Rakov "Analysis of the dynamics of the boundary layer of the atmosphere during the passage of mesoscale convective systems on the example of the city of Tomsk", Proc. SPIE 11916, 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 119166R (15 December 2021); https://doi.org/10.1117/12.2603448

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