Articles | Volume 23, issue 5
Research article
09 Mar 2023
Research article |  | 09 Mar 2023

Impacts of estimated plume rise on PM2.5 exceedance prediction during extreme wildfire events: a comparison of three schemes (Briggs, Freitas, and Sofiev)

Yunyao Li, Daniel Tong, Siqi Ma, Saulo R. Freitas, Ravan Ahmadov, Mikhail Sofiev, Xiaoyang Zhang, Shobha Kondragunta, Ralph Kahn, Youhua Tang, Barry Baker, Patrick Campbell, Rick Saylor, Georg Grell, and Fangjun Li

Data sets

Fire emission, plume, and air quality observation for the 2020 US Giga Fire Yunyao Li, Daniel Tong, Xiaoyang Zhang, Shobha Kondragunta, and Ralph Kahn

Model code and software

CMAQ (Version 5.3.1) United States Environmental Protection Agency

Short summary
Plume height is important in wildfire smoke dispersion and affects air quality and human health. We assess the impact of plume height on wildfire smoke dispersion and the exceedances of the National Ambient Air Quality Standards. A higher plume height predicts lower pollution near the source region, but higher pollution in downwind regions, due to the faster spread of the smoke once ejected, affects pollution exceedance forecasts and the early warning of extreme air pollution events.
Final-revised paper