||Sensitivity of Ozone and Aerosol Predictions to the Transport Algorithms in the Models-3 Community Multi-Scale Air Quality (CMAQ) Modeling System.
Byun, D. W. ;
Pleim, J. E. ;
||Environmental Protection Agency, Research Triangle Park, NC. National Exposure Research Lab.
Air pollution sources ;
Physical processes ;
Chemical processes ;
Air quality ;
Transport algorithms ;
Community Multiscale Air Quality modeling systems ;
Atmospheric transport algorithms
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EPA's Models-o3 CMAQ system is intended to provide a community modeling paradigm that allows continuous improvement of the one-atmosphere modeling capability in a unified fashion. CMAQ's modular design promotes incorporation of several sets of science process modules representing different algorithms and parameterizations of physical and chemical processes. For example, there are several different atmospheric transport algorithms available with CCTM. One objective of the present study is to demonstrate benefit of the modularity of the CMAQ system. Another is to assess the effects of different transport algorithms on air quality predictions. Here, we have demonstrated that the choice of modules in transport processes interacts with other model configurations.