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

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...

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Bibliographic Details
Published in:Atmospheric measurement techniques 2017-03, Vol.10 (3), p.1215-1227
Main Authors: Debnath, Mithu, Iungo, Giacomo Valerio, Brewer, W. Alan, Choukulkar, Aditya, Delgado, Ruben, Gunter, Scott, Lundquist, Julie K, Schroeder, John L, Wilczak, James M, Wolfe, Daniel
Format: Article
Language:English
Subjects:
Accuracy
Atmospheric boundary layer
Boundary layers
Data acquisition
Doppler effect
Doppler lidars
Doppler sonar
eXperimental Planetary boundary layer Instrumentation Assessment
Experiments
Instrumentation
Ka-band radars
Lidar
Lidar measurements
Measurement
Measurement techniques
Observations
Optical radar
Planetary boundary layer
Precipitation
Radar
Radar measurement
Remote sensing
Scanning
scanning wind lidars
Sensing techniques
Surveying
Tower measurements
Towers
Velocity
Wind direction
WIND ENERGY
Wind measurement
Wind speed
Wind velocity
XPIA
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Summary: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.
ISSN:1867-8548
1867-1381
1867-8548
DOI:10.5194/amt-10-1215-2017