Atmospheric Measurement Techniques
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 carried out with scanning wind lidars and Ka-band radars. Specifically, step–stare measurements were collected simultaneously with three scanning Doppler lidars, while two scanning Ka-band radars carried out 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 meteorological tower (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 very good accuracy is achieved for both remote-sensing techniques for probing horizontal wind speed and wind direction with the virtual-tower scanning technique.
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Debnath, Mithu; Iungo, Giacomo Valerio; Brewer, W. Alan; Choukulkar, Aditya; Delgado, Ruben; Gunter, Scott; Lundquist, Julie K.; Schroeder, John L.; Wilczak, James M.; and Wolfe, Daniel, "Assessment of virtual towers performed with scanning wind lidars and Ka-band radars during the XPIA experiment" (2017). Atmospheric & Oceanic Sciences Faculty Contributions. 25.