Abstract: The paper presents two boundary layer parameterizations for a model based on a general technique for solving the K equation using the truncated Gram?Charlier expansion (type A) of the concentration field and a finite set ...

Abstract: An integral parameterization of the dispersion coefficients σy and σz in a shear?buoyancy-driven atmospheric boundary layer is developed by using a model for the frequency spectrum of eddy energy. The formulation relies ...

Abstract: A new formulation for the lateral dispersion parameter is presented. The model is valid for unstable atmospheric conditions and based on the turbulent kinetic energy spectra and Taylor diffusion theory. It has been tested ...