Title: Validation of the Demokritos dispersion modelling system based on the Indianapolis experiment

Authors: E. Davakis, S. Andronopoulos, D. Vlachogiannis, A. Venetsanos, J.G. Bartzis, S.G. Nychas

Addresses: Department of Chemical Engineering, Aristotle University of Thessaloniki, University Box 453, GR-54006 Thessaloniki, Greece. National Centre for Scientific Research ''Demokritos'', Institute of Nuclear Technology and Radiation Protection, Environmental Research Laboratory, GR-15310, Aghia Paraskevi, Attiki, Greece. National Centre for Scientific Research ''Demokritos'', Institute of Nuclear Technology and Radiation Protection, Environmental Research Laboratory, GR-15310, Aghia Paraskevi, Attiki, Greece. National Centre for Scientific Research ''Demokritos'', Institute of Nuclear Technology and Radiation Protection, Environmental Research Laboratory, GR-15310, Aghia Paraskevi, Attiki, Greece. National Centre for Scientific Research ''Demokritos'', Institute of Nuclear Technology and Radiation Protection, Environmental Research Laboratory, GR-15310, Aghia Paraskevi, Attiki, Greece. Department of Chemical Engineering, Aristotle University of Thessaloniki, University Box 453, GR-54006 Thessaloniki, Greece

Abstract: 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.

Keywords: Indianapolis experiment; Lagrangian particle dispersion model; puff model; random walk displacement model; validation procedure.

DOI: 10.1504/IJEP.2001.000609

International Journal of Environment and Pollution, 2001 Vol.16 No.1/2/3/4/5/6, pp.88-100

Published online: 07 Jul 2003 *

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