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Atmospheric Measurement Techniques An interactive open-access journal of the European Geosciences Union
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Volume 6, issue 2
Atmos. Meas. Tech., 6, 221–229, 2013
https://doi.org/10.5194/amt-6-221-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
Atmos. Meas. Tech., 6, 221–229, 2013
https://doi.org/10.5194/amt-6-221-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 05 Feb 2013

Research article | 05 Feb 2013

Note on the application of planar-fit rotation for non-omnidirectional sonic anemometers

M. Li1, W. Babel2, K. Tanaka3, and T. Foken4,2 M. Li et al.
  • 1Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, China
  • 2Department of Micrometeorology, University of Bayreuth, Bayreuth, Germany
  • 3Hiroshima Institute of Technology, Hiroshima, Japan
  • 4Member of Bayreuth Centre of Ecology and Environmental Research (BayCEER) of the University of Bayreuth, Bayreuth, Germany

Abstract. For non-omnidirectional sonic anemometers like the Kaijo-Denki DAT 600 TR61A probe, it is shown that separate planar-fit rotations must be used for the undisturbed (open part of the sonic anemometer) and the disturbed sector. This increases the friction velocity while no effect on the scalar fluxes was found. In the disturbed sector, irregular values of − u′w′ < 0 were detected for low wind velocities. Up to a certain extent these results can be transferred to the CSAT3 sonic anemometer (Campbell Scientific Ltd). This study was done for data sets from the Naqu-BJ site on the Tibetan Plateau.

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