Articles | Volume 21, issue 21
Atmos. Chem. Phys., 21, 16293–16317, 2021
Atmos. Chem. Phys., 21, 16293–16317, 2021
Research article
08 Nov 2021
Research article | 08 Nov 2021

Nighttime and daytime dark oxidation chemistry in wildfire plumes: an observation and model analysis of FIREX-AQ aircraft data

Zachary C. J. Decker et al.

Model code and software

The Framework for 0-D Atmospheric Modeling (F0AM) v3.1 ( G. M. Wolfe, M. R. Marvin, S. J. Roberts, K. R. Travis, and J. Liao

Nighttime Chemical Transformation in Biomass Burning Plumes: A Box Model Analysis Initialized with Aircraft Observations (Supplement) Z. C. J. Decker, K. J. Zarzana, M. Coggon, K.-E. Min, I. Pollack, T. B. Ryerson, J. Peischl, P. Edwards, W. P. Dubé, M. Z. Markovic, J. M. Roberts, P. R. Veres, M. Graus, C. Warneke, J. de Gouw, L. E. Hatch, K. C. Barsanti, and S. S. Brown

Short summary
To understand air quality impacts from wildfires, we need an accurate picture of how wildfire smoke changes chemically both day and night as sunlight changes the chemistry of smoke. We present a chemical analysis of wildfire smoke as it changes from midday through the night. We use aircraft observations from the FIREX-AQ field campaign with a chemical box model. We find that even under sunlight typical nighttime chemistry thrives and controls the fate of key smoke plume chemical processes.
Final-revised paper