Comparison of an Eulerian with a Lagrangian Type Numerical Air Pollution Dispersion Model
For the quantitative interpretation of the measurement results of the Dutch national air pollution monitoring network two retrospective numerical models were developed. Based on the same meteorology both models only differ in numerical treatment of air pollution transport. In the Eulerian GRID-model advection is simulated by the pseudo-spectral advection scheme as given by Christensen and Prahm (1976), over a 32×32 grid with gridpoint-distances of 15 km, covering the 450×450 km2 surroudings of the Netherlands. In the Lagrangian PUFF-trajectory model the 15×15 km2 source areas are aggregated to puffs which are advected according to the same wind fields as used in the GRID-model.
KeywordsWind Field Reservoir Layer Eulerian Grid Relevant Source Area Fumigation Period
Unable to display preview. Download preview PDF.
- Wesely M.L. and Hicks B.B., 1977, Some factors that effect the deposition rates of sulfur dioxide and similar gases on vegetation, J. Air Poll. Contr. Ass. 27 no. 11, pp. 1110–1116.Google Scholar