RT Journal Article ID 311337ff15f3e800 A1 Carvalho, J. C. A1 Degrazia, Gervasio Annes A1 Anfossi, Domenico A1 Castelli, S. Trini T1 SIMULATION OF COPENHAGEN TRACER DIFFUSION EXPERIMENT BY MEANS OF A LAGRANGIAN PARTICLE MODEL JF Hybrid Methods in Engineering JO HME YR 1999 FD 1999-12-01 VO 1 IS 4 OP 19 AB Using simulations with a stochastic Lagrangian model of turbulent diffusion, we have studied the dispersion of contaminants in the atmospheric boundary layer when both thermal and mechanical turbulent forcing terms are present. The model is based on a generalized form of the Langevin equation and in the vertical direction the probability density function (PDF) is non-Gaussian and represented by two different PDFs. By employing the Copenhagen tracer diffusion experiment, the model performances are evaluated against observed ground-level concentrations. PB Begell House LK https://www.dl.begellhouse.com/journals/1a37c0433d303e8b,38aa9f1f59956da6,311337ff15f3e800.html