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Simulations of atmospheric dispersion in an urban stable boundary layer
- Source :
- International Journal of Environment and Pollution. July 18, 2003, Vol. 14 Issue 1-6, 1
- Publication Year :
- 2003
-
Abstract
- Byline: E. Ferrero, D. Anfossi, G. Tinarelli The results of numerical simulations of tracer dispersion in an urban stable boundary layer are presented. Both Gaussian approximation and fourth order closure are considered and a Gram-Charlier probability density function is used in our Lagrangian stochastic model. Different parameterisations for the boundary-layer height and different values of kurtosis are tested. The model is based on the generalised Langevin equation, whose coefficients are solution of the Fokker-Planck equation and plume rise is taken into account. The model accuracy is assessed by means of a model evaluation based on the predicted and observed crosswind integrated concentrations, maximum on the arc and standard deviation of the crosswind concentration distribution on the arc.
Details
- Language :
- English
- ISSN :
- 09574352
- Volume :
- 14
- Issue :
- 1-6
- Database :
- Gale General OneFile
- Journal :
- International Journal of Environment and Pollution
- Publication Type :
- Academic Journal
- Accession number :
- edsgcl.143293529