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Modeling Trends in Tropospheric Aerosol Burden & Its Radiative Effects
Mathur, R., J. Xing, Jon Pleim, M. Gan, C. Hogrefe, AND David-C Wong. Modeling Trends in Tropospheric Aerosol Burden & Its Radiative Effects. Southeast Atmosphere Study Modeling Workshop, Princeton, NJ, June 08 - 10, 2015.
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.
Large changes in emissions of aerosol precursors have occurred across the southeast U.S., North America, as well as the northern hemisphere. The spatial heterogeneity and contrasting trends in the aerosol burden is resulting in differing effects on regional radiative balance. Multi-decadal simulations spanning 1990-2010 are conducted with the WRF-CMAQ model to systematically investigate and quantify the direct radiative effects of atmospheric aerosols.
Record Details:Record Type: DOCUMENT (PRESENTATION/SLIDE)
Organization:U.S. ENVIRONMENTAL PROTECTION AGENCY
OFFICE OF RESEARCH AND DEVELOPMENT
NATIONAL EXPOSURE RESEARCH LABORATORY
ATMOSPHERIC MODELING DIVISION