Tracey Holloway

Scientist, Educator, Leader

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Current Project:

Satellites, Health and Air Quality

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Projects in my group range from new ideas, to papers in review; from big-picture themes, to specific studies and outcomes. 

Much of my research works to connect NASA science with health and air quality applications through the NASA Health and Air Quality Applied Sciences Team (HAQAST). HAQAST is a 3-year project funded by NASA Applied Sciences, which funds my work as a scientist and team member, as well as Team Lead. My work with HAQAST builds on past work with AQAST (2011-2016). Support from AQAST and HAQAST funds researchers in my group, where we apply satellite data to issues relevant to decision-makers. 

We have a couple of projects underway evaluating the sensitivity of ozone “smog” to its two main ingredients: NOx and VOCs. Past work in our group has used satellite data for this problem in China [Jin and Holloway, 2014], and reported on past work using this metric for decision-making in the state of Colorado [Witman et al., 2014]. Now, we are applying this metric across cities in the U.S., and find that the bigger the city, the more sensitive it is to VOC emissions. We are using this satellite data ratio to evaluate the skill of a widely used air quality model run by our collaborators at the Lake Michigan Air Director’s Consortium (LADCO). We are also investigating the way NO2 changes throughout the data across the U.S., comparing ground-based monitors with two different NO2 satellite retrievals (OMI and GOME-2).