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Comparisons between aerovane and sonic anemometer wind measurements at Alcântara Launch Center

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Author(s): Gilberto Fisch

Journal: Journal of Aerospace Technology and Management
ISSN 1984-9648

Volume: 2;
Issue: 1;
Start page: 105;
Date: 2010;
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Keywords: Masts | Wind speed | Maximum wind

ABSTRACT
This paper aimed to compare the wind measurements in two different types of anemometer: classical aerovane and modern sonic anemometer. The two sensors were installed at Alcântara Launch Center during a dry period of 2008 at 10 m height. The analysis compared the average and maximum wind speed for one- and ten-minute time intervals for each anemometer. The results showed that, considering the range of the measurements (from 3.0 up to 6.5 m/s), the average and maximum wind speed are different by roughly 0.5 and 1.0 m/s, respectively. There is no significant difference between the results from one- and ten-minute time intervals. The substitution of the sensors at the Anemometric Tower at Alcântara Launch Center will lead to an increase of the average and maximum wind speed.
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