Articles | Volume 10, issue 2
https://doi.org/10.5194/amt-10-393-2017
https://doi.org/10.5194/amt-10-393-2017
Research article
 | 
02 Feb 2017
Research article |  | 02 Feb 2017

Identification of tower-wake distortions using sonic anemometer and lidar measurements

Katherine McCaffrey, Paul T. Quelet, Aditya Choukulkar, James M. Wilczak, Daniel E. Wolfe, Steven P. Oncley, W. Alan Brewer, Mithu Debnath, Ryan Ashton, G. Valerio Iungo, and Julie K. Lundquist

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Short summary
During the eXperimental Planetary boundary layer Instrumentation Assessment (XPIA) field campaign, the wake and flow distortion from a 300-meter meteorological tower was identified using pairs of sonic anemometers mounted on opposite sides of the tower, as well as profiling and scanning lidars. Wind speed deficits up to 50% and TKE increases of 2 orders of magnitude were observed at wind directions in the wake, along with wind direction differences (flow deflection) outside of the wake.