S32 Impact of Meteorology in Ozone Production during OWLETS-2

Sunday, 12 January 2020
Amanze Ejiogu, Univ. of Maryland, Baltimore County, Baltimore, MD; and B. J. Carroll, V. Caicedo, B. Demoz, and R. Delgado

The Ozone Water-Land Environmental Transition Study (OWLETS-2) 2018 summer field campaign in the state of Maryland had the goal of obtaining high-resolution aerosol, wind, ozone, and temperature profiles to understand the effects of local source variability, PBL structure, and microphysical processes on the ability of a column measurement to be related to a surface concentration. Combination of profiling ozone lidar measurements with temperature and scanning Doppler wind lidar can aid verify how urban centers near coastal areas are often subject to poor air quality through either direct downwind transport of pollutants, in-situ production of ozone, or a recirculation brought about by a bay breeze. This work provides a three-dimensional assessment of the air quality from measurements (lidar, sondes and surface meteorology and air quality) collected at multiple Maryland Department of the Environment air quality monitoring sites (Edgewood, Hart Miller Island, Howard University Beltsville Research Campus) and the University of Maryland, Baltimore County by quantifying the impact of mesoscale weather phenomena on local ozone concentrations.
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