Keywords: Indianapolis experiment, Lagrangian particle dispersion model, puff model, random walk displacement model, validation procedure
Validation of the Demokritos dispersion modelling system based on the Indianapolis experiment
To assess the ability of a model to simulate atmospheric dispersion, its performance must be tested using data from real field experiments. This paper presents the results of a validation study of the atmospheric dispersion model Dispersion over Complex Terrain (DIPCOT) against data from the Indianapolis field experiment. Three different modules of the dispersion code are examined a puff model, a random walk model based on random displacement, and a stochastic model based on the Langevin equation. The results of the three modules are statistically and qualitative compared with the maximum arcwise concentrations and the near centreline concentrations.