Abstract
Three-dimensional wind velocity components were measured above and within a uniform almond orchard. Turbulent statistics associated with the turbulent flow inside the canopy are examined in detail. Turbulence in an almond orchard is characterized by relatively high turbulent intensities and large skewness and kurtosis values. These results indicate that the frequency distribution of wind velocity components is non-Gaussian. Conditional sampling of the turbulent measurements show that large, infrequent sweeps provide the predominant mechanism for tangential momentum stress in the canopy crown. Deep inside the canopy, a secondary wind maximum and small, but positive, tangential momentum stresses are observed.
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Baldocchi, D.D., Hutchison, B.A. Turbulence in an almond orchard: Vertical variations in turbulent statistics. Boundary-Layer Meteorol 40, 127–146 (1987). https://doi.org/10.1007/BF00140072
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DOI: https://doi.org/10.1007/BF00140072