Measurement of the mechanical turbulence in the atmospheric boundary layer by the BSE-lidar

Igor A. Razenkov

doi:10.1117/12.2603347

15 December 2021 Measurement of the mechanical turbulence in the atmospheric boundary layer by the BSE-lidar

Igor A. Razenkov

Proceedings Volume 11916, 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics; 119163M (2021) https://doi.org/10.1117/12.2603347
Event: 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 2021, Moscow, Russian Federation

Abstract

The data of the turbulent lidar for a month are analyzed and compared with observations on the meteorological mast. The data obtained in the presence of precipitation were excluded from consideration, and special attention was paid to the data when the wind velocity at an altitude of 10 m exceeded 5 m/s. It was found that in the vast majority of cases, the lidar estimate of the structural characteristic of the refractive index C_n ²with altitude changes according to the law ~z^-4/3, corresponding to the free convection regime. On this basis, a well-known relation was used that relates the structural characteristic of the temperature of C_T ² to the rate of kinetic energy dissipation ε, which characterizes the intensity of turbulence. The structural characteristics of C_T ² and C_n ² are expressed through each other, since the refractive index fluctuations are caused by temperature fluctuations.

Citation Download Citation

Igor A. Razenkov "Measurement of the mechanical turbulence in the atmospheric boundary layer by the BSE-lidar", Proc. SPIE 11916, 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 119163M (15 December 2021); https://doi.org/10.1117/12.2603347

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