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Impacts of Lateral Boundary Conditions on U.S. Ozone Modeling Analyses
Citation:
Dolwick, P., C. Jang, AND C. Hogrefe. Impacts of Lateral Boundary Conditions on U.S. Ozone Modeling Analyses. 97th Annual Meeting of the American Meteorological Society, Seattle, WA, January 23 - 26, 2017.
Impact/Purpose:
The National Exposure Research Laboratory (NERL) Computational Exposure Division (CED) develops and evaluates data, decision-support tools, and models to be applied to media-specific or receptor-specific problem areas. CED uses modeling-based approaches to characterize exposures, evaluate fate and transport, and support environmental diagnostics/forensics with input from multiple data sources. It also develops media- and receptor-specific models, process models, and decision support tools for use both within and outside of EPA.
Description:
Chemical boundary conditions are a key input to regional-scale photochemical models. In this study, we perform annual simulations over North America with chemical boundary conditions prepared from two global models (GEOS-CHEM and Hemispheric CMAQ). Results indicate that the impacts of different boundary conditions on ozone can be significant throughout the year.
