Articles | Volume 12, issue 1
Atmos. Meas. Tech., 12, 237–252, 2019
https://doi.org/10.5194/amt-12-237-2019
Atmos. Meas. Tech., 12, 237–252, 2019
https://doi.org/10.5194/amt-12-237-2019

Research article 15 Jan 2019

Research article | 15 Jan 2019

A method to assess the accuracy of sonic anemometer measurements

Alfredo Peña et al.

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Latest update: 17 Jan 2022
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Short summary
We propose a method to assess the accuracy of turbulence measurements by sonic anemometers. The idea is to compute the ratio of the vertical to along-wind velocity spectrum within the inertial subrange. We found that the Metek USA-1 and the Campbell CSAT3 sonic anemometers do not show the expected theoretical ratio. A wind-tunnel-based correction recovers the expected ratio for the USA-1. A correction for the CSAT3 does not, illustrating that this sonic anemometer suffers from flow distortion.