Height Dependence of the Scale of Turbulence and Higher-Order Moments of the Vertical Wind Velocity in the Neutral Atmospheric Surface Layer

Abstract

The height variations of the scale of turbulence and the higher-order moments for the vertical wind velocity have been investigated by tower measurements at three heights (2, 11.25 and 21m) under neutral air. From the present analysis, it is obtained that the scale of turbulence slightly deviates from its linear relation with height. This result is different from the mixing length theory. Moreover, the height dependence of the skewness and the kurtosis of the vertical velocity component were verified experimentally.