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

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(2) with altitude changes according to the law similar to 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 E, 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.