Author(s)

K.C. Nguyen, J.A. Noonan & W.L. Physick

Abstract

In this paper we examine simulations of dispersion from elevated point sources in complex terrain, using a Lagrangian particle model (LADM) and an Eule- rian grid-based model (CALGRID). Both models use the same predicted windfields. We are particularly interested in the comparison of hourly- averaged ground-level concentrations (glcs), given the different nature of each approach. 1 Introduction The conservation equation for the mean concentration of a pollutant is _ V(wjc') = R + S + L for z = l,2 or 3 (1) where the bar and the prime terms represent mean quantities and fluctua- tion quantities respectively, U{ equals u, v or w the east-west, north-south or vertical component of the wind, c is the concentration, R is

Keywords