TURBULENCE MEASUREMENT BY USING DOPPLER LIDAR AND ITS VERIFICATION BY USING SYNTHETIC TURBULENT WIND FIELD

Abstract

In this study, the comparisons of the measured turbulence intensity by a Doppler lidar with the reference value in synthetic turbulent wind field are carried out. The standard deviation of the horizontal velocity components measured by the pulsed lidar shows larger value than the reference. Two correction methods are proposed to explain and improve these overestimations. One method is to use the correlation of the fluctuating horizontal and vertical velocity components and the variance of vertical velocity. The other is to use the variances of line of sight (LoS) and vertical velocities. Both methods improve the overestimation of the horizontal turbulences measured by the pulsed lidar.