Parameterization of nocturnal stable boundary layer height (NSBLH) and effect of NSBLH on air pollution in an urban area with complex topography (Tehran)

Mixing height of the atmospheric boundary depends on the vertical variation of temperature in the atmosphere which includes temperature inversion (including surface and elevated inversions)‎ that has a significant effect on air quality. The mixing height like some other meteorological variables has diurnal variations. The reason for that is its dependence on some other basic meteorological parameters e.g. surface turbulent fluxes (momentum and heat fluxes)‎, wind speed, temperature stratification. In urban area surface roughness and topography also affect the mixing height.