Atmospheric Chemistry

One of the main objectives of the CEMPD is to investigate the scientific issues involved with simulating air quality through the development, evaluation, and application of an air quality modeling system. Our team of investigators was among the prime developers of the EPA Models-3 system and its chemistry transport model CMAQ. Over the years the CEMPD has demonstrated experience in developing and applying air quality models at urban, regional and global scales.

• Develop Variable grid modeling approach to accommodate fine scales at specific urban locations
• Apply four dimensional data assimilation using field measurements of tropospheric chemical constituents to corresponding model variables
• Develop an integrated meteorology/ chemistry modeling platform for examining climatic impacts of particulate matter
• Develop analysis tools and schemes to evaluate model simulations when comparing with observational and field measurements data
• Examine and evaluate the performance of various chemical mechanisms used in air quality modeling
• Develop visibility schemes for assessing visibility impairments at regional scales
• Research efficient radiative transfer calculations of photolysis rates
• Research Particulate Matter methodologies to include sea salt aerosols in air quality models
• Provide training on CMAQ and SMOKE

Relevant Projects

A methodology to relate changes in airport emissions to county-wide air pollution levels
Abstract  | Web Page

Collaborative Research: Evaluation of a Coupled Meteorology-Chemistry Model against Long-term Measurements of Elemental Carbon and Sulfate for Regional Climate Applications
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Investigation of the Interactions Between Climate Change, Biomass, Forest Fires, and Air Quality with an Integrated Modeling Approach
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Modeling Observed Aerosol Trends in the Free Troposphere: The Relative Roles of in situ and Boundary Layer Sources
Abstract