Accuracy of Estimation of the Turbulent Energy Dissipation Rate from Wind Measurements with a Conically Scanning Pulsed Coherent Doppler Lidar. Part II. Numerical and Atmospheric Experiments

摘要

Using numerical simulation, possibilities of measurements of the turbulent energy dissipation rate with a pulsed coherent Doppler lidar (PCDL) are studied in the case of conical scanning with a probing beam, with allowance for the averaging of the radial velocity over the sensing volume and error of estimates of the radial velocity. The error of the lidar estimate of the dissipation rate was calculated as a function of the number of full scans with a probing beam and of the signal-to-noise ratio. A comparative analysis was performed for the results of joint mea- surements of the dissipation rate by sonic anemometers and 2-μm PCDL.