W. L. Physick

TL;DR: The TAPM performance is very good for the prediction of extreme pollution statistics, important for environmental impact assessments, for both non-reactive (tracer) and reactive (nitrogen dioxide, ozone and particulate) pollutants for a variety of sources.

TL;DR: In this paper, a modified form of the M-O stability functions (Garratt, 1978, 1980, 1983) was incorporated in a mesoscale model to take account of this roughness sublayer and examined the diurnal variation of the boundary-layer wind and temperature profiles with and without these modifications.

TL;DR: In this paper, the authors investigate the effect of homogeneous turbulence on ground-level concentration (glc) by comparing results with (a) the Willis and Deardorff laboratory experiments on dispersion in fully convective conditions and (b) the predictions of a model employing a more realistic inhomogeneous parameterization for the turbulence.

TL;DR: In this paper, a number of particle model formulations are evaluated for their ability to maintain a well-mixed profile under steady-state convective conditions and the importance of using a formulation of the Langevin equation which is compatible with the specified turbulence parameterization is emphasised.

TL;DR: In this paper, the problem of how to formulate random walk dispersion models in situations where the flow properties vary discontinuously across an interface is considered, and it is shown how the dispersion model can be made consistent with the assumptions made about the turbulence.