Articles | Volume 25, issue 15
https://doi.org/10.5194/acp-25-8507-2025
https://doi.org/10.5194/acp-25-8507-2025
Research article
 | 
06 Aug 2025
Research article |  | 06 Aug 2025

Identifying drivers of surface ozone bias in global chemical reanalysis with explainable machine learning

Kazuyuki Miyazaki, Yuliya Marchetti, James Montgomery, Steven Lu, and Kevin Bowman

Data sets

TROPESS Chemical Reanalysis Surface O3 2-Hourly 2-dimensional Product V1 K. Miyazaki https://doi.org/10.5067/NN87W53OVGUS

Model code and software

SUDSAQ James Montgomery et al. https://github.com/JPLMLIA/SUDSAQ

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Short summary
This study employs explainable machine learning to analyze the causes of significant biases in surface ozone estimates from chemical reanalysis. By analyzing global observations and chemical reanalysis outputs, key bias drivers, such as meteorological conditions and precursor emissions, were identified. This provides actionable insights to improve chemical transport models, observation systems, and emissions inventories, ultimately enhancing ozone reanalysis for better air pollution management.
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