Vol. 38, issue 07, article # 5

Abstract:

Turbulent processes in the atmospheric boundary layer have not been fully studied yet. The most effective tool for studying these processes is a pulsed coherent Doppler lidar (PCDL). In the work, the second version of the electro-optical unit of a PCDL LVR-2 created at the Laboratory of Wave Propagation of V.E. Zuev Institute of Atmospheric Optics, Siberian Branch, Russian Academy of Sciences, is tested. The correctness of wind radial velocity (RV) estimates by LVR-2 during its operation in the “short” pulse mode is verified in an experiment with a Stream Line lidar. The errors in RV estimates by LRV-2 are analyzed. A possibility of using RV estimates by LRV-2 made in the vertical sounding mode to estimate the kinetic energy dissipation rate of wind turbulence by the vertical velocity spectral density method is shown. The results can be used to create techniques for testing PCDLs and determining the efficiency of such lidars in estimating atmospheric turbulence parameters.

Keywords:

pulsed coherent Doppler lidar, radial velocity, spectra of turbulent fluctuations of vertical wind velocity

Figures:

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