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

Author: Wilson D.K.  

Publisher: Springer Publishing Company

ISSN: 0006-8314

Source: Boundary-Layer Meteorology, Vol.99, Iss.1, 2001-04, pp. : 151-158

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

Previous Menu Next

Abstract

The function ()=(1+|z/L|^2/3)^1/2, where z is the height, L the Obukhov length, and  a constant, is proposed for the nondimensional wind speed and temperature gradients (flux-profile relationships) in an unstable surface layer. This function agrees quite well with both 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.