Boundary-Layer Meteorology

, Volume 99, Issue 1, pp 151–158 | Cite as

An Alternative Function For The Wind And Temperature Gradients In Unstable Surface Layers

  • D. Keith Wilson


The function φ(ζ)=(1+γ|z/L|2/3)1/2,where z is the height, L the Obukhov length, and γ a constant,is proposed for the nondimensional wind speed and temperaturegradients (flux-profile relationships) in anunstable surface layer. This function agrees quite well withboth wind speed and temperature data,has the theoretically correct behaviour in convective conditions,and leads to simple results when integrated to produce the mean profiles.

Free convection Surface layer Wind and temperature profiles 


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Copyright information

© Kluwer Academic Publishers 2001

Authors and Affiliations

  • D. Keith Wilson
    • 1
  1. 1.U.S. Army Research Laboratory, ATTN: AMSRL-CI-EPAdelphiUSA

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