ACCURAY OF OFFSHORE WIND MEASUREMENTS USING A SCANNING LiDAR

Abstract

Using scanning LiDAR (Light Detection and Ranging) systems which are measurement devices to observe winds within about 10 km are a promising way to reduce technical and financial constrains for offshore wind resource assessment in coastal water. However, the accuracy of scanning LiDARs for offshore wind measurements is not well investigated. In this study, we have started an experiment campaign using a scanning LiDAR of Windcube200S at a coastal research platform in Japan. The wind condition obtained from the scanning LiDAR using a DBS (Doppler Beam Swing) method is compared with that from a sonic anemometer installed on the research platform. As a result, the wind speeds and directions from the scanning LiDAR exhibit a good agreement with those from the sonic anemometer.