Boundary Layer, Urban Meteorology and Land-Surface Processes

Optimizing Lidar Scanning Strategies for Turbulence Measurements

Jennifer Newman
OU School of Meteorology

06 December 2013, 2:00 PM

National Weather Center, Room 5600
120 David L. Boren Blvd.
University of Oklahoma
Norman, OK

The actual power produced by a wind turbine is affected by the wind speeds and turbulence levels experienced across the entire turbine rotor disk. Because of the range of measurement heights required for wind power estimation, remote sensing devices (e.g., lidar) are ideally suited for these purposes. However, the volume averaging inherent in remote sensing technology produces turbulence estimates that are different from those estimated by a sonic anemometer mounted on a standard meteorological tower. In addition, most lidars intended for wind energy purposes utilize a standard Doppler beam-swinging or Velocity-Azimuth Display technique to estimate the three-dimensional wind vector. These scanning strategies are ideal for measuring mean wind speeds but are likely inadequate for measuring turbulence.

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