Skill's Comparison of Three Canadian Regional Air Quality Models Over Eastern North America for the Summer 2003
Three Canadian numerical air quality models: CHRONOS (Canadian Hemispheric and Regional Ozone and NOx System), AURAMS (A Unified Regional Air quality Modelling System) and GEM-AQ (Global Environmental Multiscale – Air Quality model) present different modelling approaches as well as different degrees of complexity in the way they represent the physicochemical interactions of the atmosphere. Large differences also exist in the way these three models are used or the kind of evaluations they have been subjected to. In order to establish a benchmark comparison, the three models will be evaluated over a one month period, starting in August, 2003. Ozone concentrations measured during the same period by air quality monitoring networks will constitute the evaluation database for this work. The three models will be compared in their native mode.
KeywordsOzone Concentration Secondary Organic Aerosol Taylor Diagram Global Environmental Multiscale Secondary Organic Aerosol Formation
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