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Observations and modeling of air quality trends over 1990-2010 across the northern hemisphere: China, the United States and Europe
Citation:
Xing, J., R. Mathur, Jon Pleim, C. Hogrefe, C. Gan, David-C Wong, C. Wei, R. Gilliam, AND G. Pouliot. Observations and modeling of air quality trends over 1990-2010 across the northern hemisphere: China, the United States and Europe. Atmospheric Chemistry and Physics. Copernicus Publications, Katlenburg-Lindau, Germany, 15(5):2227-2914, (2015).
Impact/Purpose:
The National Exposure Research Laboratory’s Atmospheric Modeling Division (AMAD) conducts research in support of EPA’s mission to protect human health and the environment. AMAD’s research program is engaged in developing and evaluating predictive atmospheric models on all spatial and temporal scales for forecasting the Nation’s air quality and for assessing changes in air quality and air pollutant exposures, as affected by changes in ecosystem management and regulatory decisions. AMAD is responsible for providing a sound scientific and technical basis for regulatory policies based on air quality models to improve ambient air quality. The models developed by AMAD are being used by EPA, NOAA, and the air pollution community in understanding and forecasting not only the magnitude of the air pollution problem, but also in developing emission control policies and regulations for air quality improvements.
Description:
Trends in air quality across the Northern Hemisphere over a 21-year period (1990–2010) were simulated using the Community Multiscale Air Quality (CMAQ) multiscale chemical transport model driven by meteorology from Weather Research and Forecasting WRF) simulations and internally consistent historical emission inventories obtained from EDGAR. Thorough comparison with several ground observation networks mostly over Europe and North America was conducted to evaluate the model performance as well as the ability of CMAQ to reproduce the observed trends in air quality over the past 2 decades in three regions: eastern China, the continental United States and Europe.
URLs/Downloads:
MATHUR ACP-2014-676-TEXT-VERSION2.PDF (PDF, NA pp, 3996.218 KB, about PDF)Atmospheric Chemistry and Physics
