Author(s)

T. Tirabassi & U. Rizza

Abstract

An air pollution model for complex terrain T. Tirabassi, U. Rizza Bologna, Italy ABSTRACT An advanced analytical model which computes air pollution concentrations in complex terrain is presented. Model performances are evaluated using wind tunnel measurements of pollutant concentrations from an elevated source in the presence of rough hills and a neutrally stable flow and are compared with that of COMPLEX I, the Gaussian model proposed by the U.S. Environmental Protection Agency. INTRODUCTION Current practical models for complex terrain are based on the Gaussian approach. We present an improved plume model (named MAOC) for elevated point sources in complex-terrain settings that is based on a non-Gaussian analytical solution of the advection- dif fusion equation. This solution has already been used with good performance in the short term model KAPPAG (Tirabassi et al. [1]) and the long term model KAPPAG-LT (Tirabassi et al.[2])

Keywords