Modified Gaussian plume model and K-tranport and diffusion model efficiency in the same atmospheric conditions

Abstract

The aim of this paper is to compare the modified Gaussian plume model and K-model for continuous emission sources in weakly orographically developed regions. Parameterization of input variables is based on the physical methods using similarity theory.

The results show that, when strong winds and stable atmosphere are present, ground level concentrations take similar values. In contrary, when weak winds and unstable atmosphere are present, K-model overestimates values given by Gaussian model due to exclusion of plume rise in the process of diffusion parameterization.