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Characteristics of New CMAQ Deposition Series of 2002 to 2011 for Critical Loads
Citation:
Dennis, R. AND K. Foley. Characteristics of New CMAQ Deposition Series of 2002 to 2011 for Critical Loads. 2014 NADP Annual Meeting and Scientific Symposium, Indianapolis, IN, October 21 - 24, 2014.
Impact/Purpose:
The National Exposure Research Laboratory (NERL) Atmospheric Modeling and Analysis Division (AMAD) conducts research in support of EPA mission to protect human health and the environment. AMAD research program is engaged in developing and evaluating predictive atmospheric models on all spatial and temporal scales for forecasting the 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:
The new CMAQ deposition time series from 2002 to 2011 of wet and dry nitrogen and sulfur deposition is characterized and evaluated in this presentation. The time series examines annual deposition across regions of the continental US. The CMAQ version with bi-directional ammonia air-surface exchange is an important new science capability that is used. CMAQ = Community Multiscale Air Quality model. The target audience is the critical loads community.
