He has more than 20 years of experience in chemical modeling and forecasting support for NASA, NOAA, and NSF field campaigns. During these campaigns, RAQMS real-time chemical and aerosol assimilation and forecasting, combined with Lagrangian trajectory analysis, provided a link between continental scale satellite observations, surface networks, and airborne measurements. He recently led the 2017 Lake Michigan Ozone Study (LMOS 2017) which was a multi-agency airborne, ground, and ship based field campaign that focused on understanding high ozone events that occur along the western coast of Lake Michigan. He is currently the satellite representative on the steering committee for the Fire Influence on Regional to Global Environments and Air Quality (FIREX-AQ) field campaign, which is a NOAA/NASA interagency intensive study of North American fires that will occur during the summer of 2019.