The goal is to compare lidar volume averaged wind measurement with point measurement reference sensors and to demonstrate the feasibility of performing 3D turbulence measurements with lidars. For that purpose three pulsed lidars were used in staring mode, placed so that their beams crossed close to a 3D sonic anemometer mounted at 80 m above the ground. The results show generally very good correlation between the lidar and the sonic times series, except that the variance of the velocity measured by the lidar is attenuated due to spatial filtering. The amount of attenuation can however be predicted theoretically. An abbreviated version of this report has been submitted to Meteorologische Zeithschrift.This work is partly financed through the UPWIND project (WP6, D3) funded by the European Commission.
|Series||Denmark. Forskningscenter Risoe. Risoe-R|