Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 26, issue 8
Articles | Volume 26, issue 8
https://doi.org/10.5194/acp-26-5697-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-26-5697-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 8
Research article
 | 
27 Apr 2026
Research article |  | 27 Apr 2026

Elevational dependence of global forest fires and associated aerosol optical depth: drivers and decoupling

Qiaomin Pei, Chuanfeng Zhao, Xing Yan, Xingchuan Yang, Annan Chen, and Xin Wan

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Short summary
Using satellite observations from 2012 to 2024, we assessed global patterns of forest fire activity and smoke and examined how elevation influences these patterns. Fire occurrence has increased slightly and mainly produces fine particles. Fires are most frequent at low elevations, while smoke is greater at mid-elevations due to lifting and terrain transport. These findings show that topography strongly shapes fire impacts and improves wildfire risk and climate assessment.
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