Keywords: analytical solutions, advection-, diffusion equation, air pollution models, operative modelling, atmospheric dispersion models, environmental impact assessment, environmental pollution, wind velocity, eddy diffusivity profiles
Operational short-range analytical air pollution modelling
Operational models that use solutions of the advection-diffusion equation based on more realistic assumptions than that of homogeneous wind and eddy diffusivity coefficients are presented. In particular, these solutions accept that wind and eddy diffusivity profiles are power functions of the height. Moreover, a practical short-range model evaluating ground-level concentrations from elevated sources, which utilises a Fickian-type formula in which the source height is a simple function of the wind velocity and eddy diffusivity profiles, is presented.