TY - JOUR
T1 - Simulations of atmospheric dispersion in an urban stable boundary layer
AU - Ferrero, E.
AU - Anfossi, D.
AU - Tinarelli, G.
PY - 2001
Y1 - 2001
N2 - 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 parameterizations for the boundary-layer height and different values of kurtosis are tested. The model is based on the generalized 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.
AB - 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 parameterizations for the boundary-layer height and different values of kurtosis are tested. The model is based on the generalized 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.
KW - Atmospheric dispersion
KW - Lagrangian stochastic model
KW - Nocturnal stable conditions
KW - Urban boundary layer
UR - http://www.scopus.com/inward/record.url?scp=0035561250&partnerID=8YFLogxK
U2 - 10.1504/ijep.2001.000600
DO - 10.1504/ijep.2001.000600
M3 - Article
SN - 0957-4352
VL - 16
SP - 1
EP - 8
JO - International Journal of Environment and Pollution
JF - International Journal of Environment and Pollution
IS - 1-6
ER -