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| HAL : pastel-00667777, version 1 |
| Fiche détaillée |  Récupérer au format |
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| Université Paris-Est (15/12/2011), Christian Seigneur (Dir.) |
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| Air quality modeling : evaluation of chemical and meteorological parameterizations |
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| Youngseob Kim 1 |
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| (15/12/2011) |
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| The influence of chemical mechanisms and meteorological parameterizations on pollutant concentrations calculated with an air quality model is studied. The influence of the differences between two gas-phase chemical mechanisms on the formation of ozone and aerosols in Europe is low on average. For ozone, the large local differences are mainly due to the uncertainty associated with the kinetics of nitrogen monoxide (NO) oxidation reactions on the one hand and the representation of different pathways for the oxidation of aromatic compounds on the other hand. The aerosol concentrations are mainly influenced by the selection of all major precursors of secondary aerosols and the explicit treatment of chemical regimes corresponding to the nitrogen oxides (NOx) levels. The influence of the meteorological parameterizations on the concentrations of aerosols and their vertical distribution is evaluated over the Paris region in France by comparison to lidar data. The influence of the parameterization of the dynamics in the atmospheric boundary layer is important ; however, it is the use of an urban canopy model that improves significantly the modeling of the pollutant vertical distribution |
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| 1 : | Centre d'Enseignement et de Recherche en Environnement Atmosphérique (CEREA) |
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EDF – Ecole des Ponts ParisTech |
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| Domaine | : | Planète et Univers/Sciences de la Terre Chimie/Autre |
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| Air quality – Chemical kinetic mechanism – Secondary organic aerosol module – Planetary boundary layer parameterization – Ozone – Aerosol |
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| Liste des fichiers attachés à ce document : | |||||
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| pastel-00667777, version 1 | |
| http://pastel.archives-ouvertes.fr/pastel-00667777 | |
| oai:pastel.archives-ouvertes.fr:pastel-00667777 | |
| Contributeur : ABES STAR | |
| Déposé pour le compte de : | |
| Soumis le : Mercredi 8 Février 2012, 12:13:18 | |
| Dernière modification le : Jeudi 9 Février 2012, 08:26:46 | |
