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Events on Friday, October 4th, 2019

Physics Department Colloquium
The 2017 Lake Michigan Ozone Study
Time: 3:30 pm
Place: 2241 Chamberlin Hall
Speaker: Brad Pierce, UW Space Sciences and Engineering Center
Abstract: The 2017 Lake Michigan Ozone Study (LMOS 2017) was a collaborative, multi‐agency field study of ozone chemistry and meteorology along the Wisconsin‐Illinois Lake Michigan shoreline using a combination of aircraft, ground‐based and ship‐based measurements. The goal of the study was to better understand ozone formation and transport around Lake Michigan; in particular, why ozone concentrations are generally highest along the lakeshore and drop off sharply inland and why ozone concentrations peak in rural areas far from major emission sources. Field activities were conducted from May 22‐June 22, 2017 and included two aircraft (one for remote sampling and one for insitu profiling), two ground based super sites (Sheboyhgan, WI and Zion, IL) with both remote sensing and insitu measurements, two mobile sampling platforms measuring lakeshore‐inland ozone concentration gradients, and additional ground‐based remote sensing instruments collocated at several other shoreline locations. Air quality and meteorological forecasts provided flight planning guidance and in‐field evaluation of model prediction skill during the campaign. This talk provides an overview of the LMOS 2017 field campaign, a summary of the measurements conducted during the LMOS 2017 field campaign and preliminary results, and a summary of preliminary model/measurement comparisons highlighting the difficulties in predicting coastal ozone concentrations along the western shore of Lake Michigan.
Host: Susan Nossal
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