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**Some programs are limited. Please read solicitations carefully and consult your Office of Research for specifics, such as limited applications through your university and internal application deadlines.**

The NASA Tropospheric Composition Program (TCP) is soliciting proposals for participation in an airborne campaign to be conducted in the continental U.S. during July, August, and into mid- September of 2019 to improve our understanding of the transport of and chemical transformations in biomass burning plumes and their impact on air quality. A single comprehensively instrumented research aircraft is required to accomplish this research. In this airborne campaign, the NASA DC-8 will may provide observations from near surface up to ~12 km.

Aircraft measurements of atmospheric trace gas mixing ratios and aerosol particle properties and meteorological parameters provide a comprehensive suite of observations to understand these processes during the focused experiment period. They are also useful for calibration and validation of the longer-term observations of Earth observing satellite sensors and the retrieved data products generated from those observations. In particular, these measurements will be useful in the calibration and validation of NASA satellites (A-Train, Terra, Suomi-National Polar-orbiting Partnership), as well as European satellites (MetOP-A/B and Sentinel-5P). The measurements made during this campaign will also be useful in the planning of future satellite missions, especially the Tropospheric Emissions: Monitoring of Pollution (TEMPO) instrument, currently under construction.

Deadline: June 16, 2017.