Assessment of virtual towers performed with scanning wind lidars and Ka-band radars during the XPIA experiment | CU Experts

Abstract. During the eXperimental Planetary boundary layer Instrumentation Assessment (XPIA) campaign, which was carried out at the Boulder Atmospheric Observatory (BAO) in spring 2015, multiple-Doppler scanning strategies were performed with scanning wind lidars and Ka-band radars. Specifically, step-stare measurements were performed simultaneously with three scanning Doppler lidars, while two scanning Ka-band radars performed simultaneous range height indicator (RHI) scans. The XPIA experiment provided the unique opportunity to compare directly virtual tower measurements performed simultaneously with Ka-band radars and Doppler wind lidars. Furthermore, multiple-Doppler measurements were assessed against sonic anemometer data acquired from the met-tower present at the BAO site and a lidar wind profiler. This survey shows that despite the different technologies, measurement volumes and sampling periods used for the lidar and radar measurements, a great accuracy is achieved for both remote sensing techniques for probing horizontal wind speed and wind direction with the virtual tower scanning technique.;

Debnath M; Iungo GV; Brewer WA; Choukulkar A; Delgado R; Gunter S; Lundquist JK; Schroeder JL; Wilczak JM; Wolfe D

VIVO