LINCOM wind flow model: application to complex terrain with thermal stratification

Abstract

LINCOM is a fast linearised and spectral wind flow model for use over hilly terrain. It is designed to rapidly generate mean wind field predictions which provide input to atmospheric dispersion models and wind engineering applications. The thermal module, LINCOM-T, has recently been improved to provide reasonably robust results over a range of stability conditions. The results predicted for idealised terrain only are presented here. Meteorological data used to initialise the model are normally obtained from measurements or from outputs from larger scale numerical models. These standard data types have therefore been used to calculate the meteorological parameters required by LINCOM-T. The effect of the formulation of these parameters on the perturbed velocity field has been investigated in detail.