Title: Modelling the meteorology and traffic pollutant dispersion in highly complex terrain: the ALPNAP Alpine Space Project

Authors: Silvia Trini Castelli, Giovanni Belfiore, Domenico Anfossi, Elisa Elampe, Monica Clemente

Addresses: Institute of Atmospheric Sciences and Climate (ISAC), National Research Council (C.N.R.), Corso Fiume 4, Torino – 10133, Italy. ' Institute of Atmospheric Sciences and Climate (ISAC), National Research Council (C.N.R.), Corso Fiume 4, Torino – 10133, Italy. ' Institute of Atmospheric Sciences and Climate (ISAC), National Research Council (C.N.R.), Corso Fiume 4, Torino – 10133, Italy. ' Agenzia Regionale per la Protezione Ambientale (ARPA Piemonte), Corso Unione Sovietica 216, 10134 – Torino, Italy. ' Agenzia Regionale per la Protezione Ambientale (ARPA Piemonte), Corso Unione Sovietica 216, 10134 – Torino, Italy

Abstract: An integrated methodology was applied, within the framework of the ALPNAP Project, to study the meteorology and traffic pollutant dispersion in highly complex topography, the Frejus Alpine transect area. Three episodes, characterised by strongly critical dispersive conditions, were considered in the year 2004. The atmospheric circulation and pollutant dispersion were simulated using RMS prognostic modelling system, then downscaling to the local scale from 1 km to 100 m resolution with the diagnostic model MINERVE. Ground level concentrations of NOx and PM10 were calculated for the 2004 emission dataset and a |future| emissive scenario. The methodology and main results are discussed.

Keywords: traffic emissions; meteorology; dispersion modelling; highly complex terrain; air pollution; air quality; atmospheric circulation; pollutant dispersion.

DOI: 10.1504/IJEP.2011.038423

International Journal of Environment and Pollution, 2011 Vol.44 No.1/2/3/4, pp.235 - 243

Published online: 07 Feb 2011 *

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