Validation of a Lagrangian Model Plume Rise Scheme against the Kincaid Data Set

INTRODUCTION Emissions from power station stacks and many other anthropogenic sources have substantial vertical velocities and are often hot compared with the surrounding ambient air. These momentum and buoyancy effects cause the emitted plume to rise, increasing the effective source height and, in the main, reducing maximum ground level concentrations. It follows that an accurate prediction of plume rise within atmospheric dispersion models is important, particularly at distances near to source and at times when the boundary layer is shallow enough to enable the effluent to penetrate the boundary layer top into the stable layer aloft.