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Rob Gilliam
*NOAA/**U.S. EPA*Air Resources Laboratory, Atmospheric Sciences
Modeling Division**National Exposure Research Laboratory
U.S. EPA and WIST
National Oceanic and Atmospheric
Administration (NOAA)
United StatesEnvironmental Protection
Agency (U.S. EPA)
Office of Atmospheric
Research (OAR)
Office of Research and Development
(ORD)
Air Resources Laboratory (ARL)
National Exposure Research
Laboratory (NERL)
Atmospheric Sciences Modeling Division
Dr. S.T. Rao, Director
Partnership
Potential WIST Related Research and Applications
• Community Multi-scale Air Quality (CMAQ) forecast model
• U.S. EPA observation network with meteorological observations
• Weather Research and Forecast model (WRF) development
• Model evaluation and application
CMAQ Modeling System
SMOKE
Anthro and Biogenic Emissions processing
Fifth Generation Mesoscale Model (MM5)
(WRF in 2006)
CMAQ AQ Model-
Chemical-Transport Computations
Met-Chem Interface Processor (MCIP)
Met. data prep
NOAA Weather Observations
EPA Emissions Inventory
Hourly 3-D Gridded Chemical Concentrations
grid cell
36-km MM5165 x 129 x 34
36-km CMAQ148 x 112 x 14
12-km MM5202 x 208 x 34
12-km CMAQ199 x 205 x 14
Domains for Annual Simulations
Example Ozone Forecast
U.S. EPA Meteorological Observations• Clean Air Status and Trends Network (CASTNet)• Approximately 75 sites across the U.S.• Meteorology observations include: wind,
temperature, precipitation, relative humidity and solar radiation
• Observations are not currently collected in real-time, but may be in the future.
Weather Research and Forecasting (WRF) model development
• A member of the WRF development working group
• Involved in WRF chemistry modeling, land-surface modeling, boundary layer modeling and data assimilation
• Currently implementing new physics schemes in WRF
• Working on coupling WRF with CMAQ
Model Evaluation Tools and Techniques
• Actively involved in meteorological model evaluation
• Improvement and development of evaluation methods
• Atmospheric Model Evaluation Tool (AMET)
U.S. EPA Benefits from WIST
• Improved weather forecasts and dissemination of weather products to the surface transportation sector will mitigate hazardous spills/releases and polluting materials that result from accidents or road maintenance
• More efficient travel will reduce emissions to the atmosphere and potentially improve air quality
Disclaimer
The research presented here was performed under the Memorandum of Understanding between the U.S. Environmental Protection Agency (EPA)
and the U.S. Department of Commerce’s National Oceanic and Atmospheric Administration (NOAA) and under agreement number DW 13921548. This
work constitutes a contribution to the NOAA Air Quality Program.
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