Sensitivity of Ozone and Aerosol Predictions to the Transport Algorithms in theModels-3 Community Multi-Scale Air Quality (CMAQ) Modeling System

摘要

EPA's Models-o3 CMAQ system is intended to provide a community modeling paradigmthat 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.