## Abstract An advanced similarityβtheory formulation for the wind and temperature profiles in the stably stratified atmospheric surface layer (ASL) is developed with due regard to the effect of the freeβflow static stability on the ASL. In the revised logβlinear profiles, empirical coefficients tr
An examination of local similarity theory in the stably stratified boundary layer
β Scribed by Zbigniew Sorbjan
- Publisher
- Springer
- Year
- 1987
- Tongue
- English
- Weight
- 482 KB
- Volume
- 38
- Category
- Article
- ISSN
- 0006-8314
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β¦ Synopsis
A stable boundary layer is investigated in terms of local similarity theory. A study is based on a set of seven runs from the BAO tower (Colorado, U.S.A.). It is shown that a theoretical prediction of constant-with-height similarity functions applies only to ensemble-averaged quantities. Scatter of observational data is analysed.
π SIMILAR VOLUMES
A one-dimensional model based on the equations of mean motion and turbulent kinetic energy (TKE) with a mixing-length closure scheme has been developed to simulate the turbulence structure of the evolving stably stratified nocturnal boundary layer (NBL). The model also includes a predictive equation
The local similarity theory, presented in the recent papers of Sorbjan (1986a, b), is extended by taking into consideration spectral (u, o, w, 0) and cospectral (uw, ~0, ~0) densities in the stable-continuous boundary layer. The resulting universal expressions for spectra, cospectra and the reduced
Simulated data derived from random numbers are used to show that the process of relating u& and similar properties to the stability parameter z/L is highly susceptible to error. An alternative method, making use of Ri as a stability index, is not affected in this way and is used to re-examine the da