1. Modeled vertical profile and turbulent flux of virtual potential temperature . 2. Under normal, stably stratified conditions, the potential temperature increases with height, 3. Potential temperature is a useful measure of the static stability of the unsaturated atmosphere.4. The virtual potential temperature flux is given by 5. With w'and \ theta _ v'perturbations of vertical velocity and virtual potential temperature , respectively. 6. Almost all wind shear and all the potential temperature gradient in the CBL are confined in the surface layer. 7. In the mesoscale, equivalent potential temperature is also a useful measure of the static stability of the unsaturated atmosphere. 8. Situations in which the equivalent potential temperature decreases with height, indicating instability in saturated air, are quite common. 9. Potential temperature , wind speed has a sharp increase across the capping inversion, while moisture has a sharp decrease.10. Observations show that turbulent mixing accounts for 50 % of the total variation of potential temperature in a typical CBL.
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