Estimation of the Richardson number in the atmospheric boundary layer using data from temperature radiometer and Doppler lidar

V. A. Banakh; A. A. Sukharev; A. V. Falits; E. V. Gordeev; I. V. Zaloznaya

doi:10.1117/12.2575597

12 November 2020 Estimation of the Richardson number in the atmospheric boundary layer using data from temperature radiometer and Doppler lidar

V. A. Banakh, A. A. Sukharev, A. V. Falits, E. V. Gordeev, I. V. Zaloznaya

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Proceedings Volume 11560, 26th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics; 115607A (2020) https://doi.org/10.1117/12.2575597
Event: 26th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 2020, Moscow, Russian Federation

Abstract

The results of experimental investigation of the atmospheric boundary layer using coherent Doppler wind lidar Stream Line and temperature profiler MTP-5 are presented. Measurements were carried out in Tomsk and in the coastal zone at the western coast of Lake Baikal near the village Listvyanka. Found that on Baikal stable thermal stratification with the formation of low-level jets almost always was realized, regardless of the time of day. The Richardson number becomes less than the critical number in the area of jet streams and its value can be close to zero. During measurements in Tomsk there was a periodic change of thermal stratification in the boundary layer from stable at night to neutral and weakly unstable during daylight hours.

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V. A. Banakh, A. A. Sukharev, A. V. Falits, E. V. Gordeev, and I. V. Zaloznaya "Estimation of the Richardson number in the atmospheric boundary layer using data from temperature radiometer and Doppler lidar", Proc. SPIE 11560, 26th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 115607A (12 November 2020); https://doi.org/10.1117/12.2575597

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