On the Atmospheric Turbulence (1st paper)

The Vertical Distribution of the Wind Velocity near the Earth's Surface (I)

Abstract

Nineteen measurements of the vertical distribution of the wind velocity and the temperature are described. The distribution of the wind velocity was found to be well represented by a very simple formula of the logarithmic type: where u denotes the wind velocity, Z the height and a and Z₀ are constants, a seems to depend only on the velocity at a given height and not on the stability and Z₀ varies according to the stability, i.e. Z₀ increases from a smaller value in the unstable atmosphere to a larger one in the stable atmosphere.