Table of Contents
Atmosphere, Volume 9, Issue 11 (November 2018) – 43 articles
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Cover Story (view full-size image) Wind measurement is one of the biggest challenges in probing the atmospheric boundary layer with [...] Read more. Wind measurement is one of the biggest challenges in probing the atmospheric boundary layer with small unmanned aerial vehicles. This study compares commonly used wind speed and direction estimation algorithms with direct 3D wind vector measurement using multi-hole probes. These estimation algorithms require temporal averaging. Two averaging periods were applied in order to assess their influence and show the limitations of each algorithm. It became evident that the temporal resolution of the no-flow-sensor algorithm is limited and that the additional flow information of the pitot tube algorithm improves precision significantly. From the algorithms presented, only the multi-hole probe algorithm can measure the vertical wind and achieve the temporal resolution to measure turbulence. View this paper.