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Capabilities of a Turbulent BSE-Lidar for the Study of the Atmospheric Boundary Layer

Abstract

In order to study the capabilities of a turbulent lidar, an experiment was carried out with a BSE-4 system, a meteorological measuring system, and an MTP-5 temperature profiler. The profile of the structural parameter of the refractive index \(C_{n}^{2}\) was determined with the lidar with a 15-s interval up to an altitude of 2 km. The dynamic turbulence strength was measured over rough terrain when the wind increased. Lidar operation under buoyant convection conditions allowed us to observe the rise of thermals and the formation of Cu clouds in the atmospheric boundary layer. Under the conditions of cellular convection, the lidar recorded quasi-periodic oscillations of \(C_{n}^{2}\) (Benard cells), which represented a stationary wave. Under stable temperature stratification, when the Richardson number was less than 1/4, the turbulent lidar detected a Kelvin–Helmholtz wave.

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ACKNOWLEDGMENTS

The author is grateful to V.V. Nosov for the useful discussion of the issues of the turbulence structure and Yu.S. Balin for constructive remarks; to the atmospheric acoustics group for the MTP-5 temperature profiler data, and the laboratory of atmospheric composition climatology for prompt provision of meteorological information from the measuring complex of IAO SB RAS.

Funding

The work was supported by the Ministry of Science and Higher Education of the Russian Federation (V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Sciences).

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Correspondence to I. A. Razenkov.

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Translated by O. Ponomareva

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Razenkov, I.A. Capabilities of a Turbulent BSE-Lidar for the Study of the Atmospheric Boundary Layer. Atmos Ocean Opt 34, 229–238 (2021). https://doi.org/10.1134/S102485602103012X

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  • DOI: https://doi.org/10.1134/S102485602103012X

Keywords:

  • atmospheric turbulence
  • atmospheric waves
  • backscatter enhancement effect
  • lidar