Abstract
The sonic anemometer measures wind velocity components from arrival times (or phase) of acoustic signals transmitted across a fixed path. Since there are no moving parts to come into dynamic equilibrium with the flow, it responds rapidly to velocity fluctuations. Its frequency response is limited only through the attenuation in spatial response imposed by line averaging along the path- It responds linearly to wind velocity and, with proper design, is relatively free of contamination from other velocity components or temperature. As an absolute instrument, its calibration is established by its design parameters Because of these advantages, the sonic anemometer has become a prime research instrument for measuring turbulent velocity fluctuations in the atmosphere.
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© 1980 Plenum Press, New York
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Kaimal, J.C. (1980). Sonic Anemometers. In: Dobson, F., Hasse, L., Davis, R. (eds) Air-Sea Interaction. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-9182-5_5
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DOI: https://doi.org/10.1007/978-1-4615-9182-5_5
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