PLUME DESCRIPTORS DERIVED FROM A NON-GAUSSIAN CONCENTRATION MODEL

Equations for point-source releases are derived from the non-Gaussian solution to the diffusion equation for (1) the first four moments of t he vertical concentration distribution (centroid, variance, skewness, and kurtosis), (2) the magnitude and downwind location of the maximum ground-level concentration, and (3) the plume advection velocity. Equa tions are obtained for both ground-level and elevated sources. Where a pplicable, results are compared to wind-tunnel and field measurements and/or to other less generalized equations. Copyright (C) 1996 Elsevie r Science Ltd