613 Webex Seminar: Timothy Canty (UMD)

Timothy J. Canty

Associate Research Professor

Director of Marine Estuarine and Environmental Sciences

Department of Atmospheric and Oceanic Science

University of Maryland


Air quality modeling and data analysis: The intersection of research and policy


As air quality in the Eastern United States has improved, determining the root cause of air pollution episodes has become more challenging. This not only impacts the ability to reliably forecast pollution episodes but also the development of regulations that will lead to further reductions in ozone and its precursors, such as NOxand volatile organic compounds (VOCs). Policy makers rely on air quality models such as CMAQ and CAMx to test realistic attainment strategies that will lead to further improvements in air quality. Our primary focus for modeling is 2011 and 2016, designated as “baseline” by state and federal agencies. Baseline years are used by regulatory agencies to determine the relative change in surface ozone, based on anticipated and theoretical pollution control strategies, for future years. A necessary condition is that these models accurately represent the chemistry, emissions, and meteorology leading to pollution events. We use ground-based, aircraft, and satellite observations to test the spatial and temporal representation of ozone production in air quality model simulations. This has led to several important, data-driven improvements to the model platform. Recent analysis has shown that ozone chemistry in the Mid-Atlantic region may be more nuanced near urban regions than previously understood. Additionally, the impact of the ongoing pandemic on ozone precursors will be discussed.


613 Seminar Series Coordinators





Please do not forward the meeting invitation to outside recipients as the presentation, discussions, and questions may contain proprietary or confidential information.



Join the WEBEX here:


Meeting number (access code): 901 129 387


Meeting password: eqZ8a2chY?3


Wednesday, June 3, 2020

1:15 pm  |  (UTC-04:00) Eastern Time (US & Canada)  |  1 hr 30 mins


Join meeting


Join by phone

+1-929-251-9612 USA Toll 2

+1-415-527-5035 US Toll

Global call-in numbers



Need help? Go to http://help.webex.com