Joshua Digangi
Physical Scientist, Chemistry & Dynamics Branch, Science Directorate, NASA Langley Research Center
About
My research is on the atmospheric measurement and analysis of trace gases and humidity, with a focus on airborne platforms. As trace gas mixtures provide detailed information about emission and airmass sources, these measurements enable our group to contribute to a wide spectrum of atmospheric composition analyses, including quantifying emissions of pollutants and probing regional/intercontinental transport. Airborne trace gas measurements also fill a vital NASA role by providing traceable intercomparison data for validation of satellite, airborne, and ground remote sensing measurements.
Publication Bibliography
Select Publications
- J.P. DiGangi, Y. Choi, J.B. Nowak, H.S. Halliday, G.S. Diskin, S. Feng, Z. Barkley, T. Lauvaux, S. Pal, K.J. Davis, B. Baier, C. Sweeney, “Seasonal Variability in Local Carbon Dioxide Combustion Sources over the Central and Eastern US using Airborne In-Situ Enhancement Ratios”, Journal of Geophysical Research: Atmospheres., 126, e2020JD034525 (2021). https://doi.org/10.1029/2020JD034525
- H. S. Halliday, J.P. DiGangi, Y. Choi, G.S. Diskin, S.E. Pusede, M. Rana, J.B. Nowak, C. Knote, X. Ren, H. He, R.R. Dickerson, Z. Li, “Using Short‐Term CO/CO2 Ratios to Assess Air Mass Differences Over the Korean Peninsula During KORUS‐AQ”, Journal of Geophysical Research: Atmospheres., 124, 10951 (2019). https://doi.org/10.1029/2018JD029697
Notable Awards
- 14 NASA Group Achievement Awards, 2015-2023
- NASA Early Career Achievement Award, 2019
Education/Professional Experience
- Postdoctoral Fellow, Civil & Environmental Engineering, Princeton University
- Ph.D., Physical Chemistry, University of Wisconsin-Madison
- B.S., Chemistry, University of Illinois – Urbana/Champaign