Corrections to Inertial-Range Power Spectra Measured by Csat3 and Solent Sonic Anemometers,1. Path-Averaging Errors |
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| Authors: | T W HORST S P ONCLEY |
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| Institution: | (1) Atmospheric Technology Division, National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 80307-3000, USA |
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| Abstract: | Sonic anemometer path-averaging errors are determined for measurements of inertial-range velocity and temperature power spectra as a function of k
1 p, where k
1 is the streamwise wave number and p is the sonic path length. The attenuation of vertical velocity spectra is found to be quite similar for the CSAT3 and Solent anemometers and to be insensitive to wind direction. The attenuation of the horizontal wind component spectra is noticeably greater for the Solent sonics than for the CSAT3, but those for the CSAT3 have a greater dependence on wind direction. The attenuation of sonic temperature spectra is also found to be quite similar for the CSAT3 and Solent R3 sonics and to be insensitive to wind direction, while that of the Solent R2 is less than that of the other two sonics and has a minor dependence on wind direction. |
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| Keywords: | Path-average error Sonic anemometer Spectral corrections |
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