ASDC | LMOS Data Release Announcement

LMOS Data Release Announcement

Dec. 1, 2020, 7 a.m.

Project: LMOS

The Atmospheric Science Data Center (ASDC) at NASA Langley Research Center has published data for the Lake Michigan Ozone Study (LMOS) field campaign. LMOS investigated ozone and ozone precursors along the Wisconsin-Illinois Lake Michigan shoreline during May and June of 2017. This collaborative mission involved the work of NASA, NOAA, the U.S. Environmental Protection Agency, the Lake Michigan Air Directors Consortium and its member states, the Electronic Power Research Institute, Scientific Aviation, and research groups at various universities.

Coastal areas in the eastern U.S. experience persistently high levels of ozone pollution. Lake Michigan in particular experiences high spring and summer ozone pollution, providing a key location for investigating the factors controlling ozone. LMOS sought to understand why ozone concentrations are highest along the lakeshore before dropping off sharply inland. Additionally, LMOS explored the peaks in ozone concentrations in rural areas far from major ozone emission sources.

LMOS was a multicomponent field campaign that utilized a combination of in-situ and remote sensing aircraft, ground-based, and ship-based measurements. The NASA UC-12 aircraft provided remote sensing measurements for pollutants along the lakeshore. Additional small aircraft provided in-situ pollutant measurements. Ground sites in Wisconsin and Illinois were equipped with remote sensing and in-situ instrumentation to provide ground-based measurements. Additionally, an EPA mobile sampling van and a mobile station operated by the University of Wisconsin provided ground-based mobile measurements. A NOAA Research Vessel obtained in-situ ozone data to provide a ship-based perspective.