MNEQA,an emissions model for photochemical simulations |
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| Authors: | S Ortega MR Soler M Alarcón R Arasa |
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| Institution: | 1. Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya, Av. Víctor Balaguer, s/n E-08 800 Vilanova i la Geltrú, Spain;2. Departament d''Astronomia i Meteorologia, Universitat de Barcelona, Martí i Franquès 1, E-08 080 Barcelona, Spain;3. Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya, Urgell 189, E-08 036 Barcelona, Spain;1. Atmospheric Sciences Modeling Division, Air Resources Laboratory, National Oceanic and Atmospheric Administration, in partnership with the National Exposure Research Laboratory, US Environmental Protection Agency, Office of Research and Development, 1200 6th Avenue/9th FL/OEA-095, Seattle, WA 98101-1128 USA;2. Mail Drop E243-05, Research Triangle Park, NC 27711, USA;1. Institute of Geomatics and Analysis of Risk (IGAR), University of Lausanne (UNIL), Switzerland;2. Swiss Federal Laboratories for Materials Testing and Research (EMPA), St. Gallen, Switzerland;3. Institute of Mechanical Engineering, Universidad de Chile, Santiago, Chile;4. Laboratory of Air and Soil Pollution (LPAS), Institute of Technology of Lausanne (EPFL), Switzerland;1. Georgia Institute of Technology, School of Earth and Atmospheric Sciences, Atlanta, GA 30332, United States;2. Georgia Institute of Technology, School of Civil and Environmental Engineering, Atlanta, GA 30332, United States;3. Atmospheric Research and Analysis, Inc., Cary, NC 27513, United States;4. ENVIRON International Corporation, Novato, CA 94998, United States |
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| Abstract: | This study focuses on a new emissions model, Numerical Emissions Model for Air Quality (MNEQA), to be used in photochemical simulations and emission control strategies relating to tropospheric ozone pollutants. MNEQA processes available local information from external files and is easily adaptable to any desired spatial resolution. Top-down and bottom-up methodologies are combined to calculate emissions at the required resolution for photochemical simulations. It was used in conjunction with the MM5-CMAQ air quality modelling system and was applied to an episode of high ozone levels in June 2003. Emission results are widely analysed showing a difference of ?8.8% with EMEP NOx emissions, and ?18.7% with EMEP VOC emissions. Related to ozone simulations, comparative results between measurements and simulations indicated good behaviour of the model in reproducing diurnal ozone concentrations, as statistical values fall within the EPA and EU regulatory frameworks. |
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