3.3 Flow Distortion in a Non-Orthogonal Three-Component Sonic Anemometer

Wednesday, 11 June 2014: 8:30 AM
Salon A-B (Denver Marriott Westminster)
T. W. Horst, NCAR, Boulder, CO; and S. P. Oncley and S. Semmer

Recent comparisons of turbulence statistics measured by orthogonal and non-orthogonal three-component sonic anemometers have suggested that non-orthogonal sonic anemometers underestimate vertical velocity fluctuations. We show turbulence simulations, wind-tunnel measurements, and field observations that support a simple correction for flow distortion in the CSAT non-orthogonal sonic anemometer.
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