Hydrological drivers of hydrogen cyanide wildfire emissions from Indonesian peat fires during the  2015, 2019, and 2023 El Niño events

Bruno, Antonio G.; Moore, David P.; Harrison, Jeremy J.; Graham, Ailish; Chipperfield, Martyn P.; Vigouroux, Corinne

doi:10.5194/acp-26-12925-2026

Articles | Volume 26, issue 17

https://doi.org/10.5194/acp-26-12925-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-26-12925-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 26, issue 17

Research article

|

14 Sep 2026

Research article |

| 14 Sep 2026

Hydrological drivers of hydrogen cyanide wildfire emissions from Indonesian peat fires during the 2015, 2019, and 2023 El Niño events

Antonio G. Bruno, David P. Moore, Jeremy J. Harrison, Ailish Graham, Martyn P. Chipperfield, and Corinne Vigouroux

Supplement

https://doi.org/10.5194/acp-26-12925-2026-supplement

Data sets

Hydrological drivers of hydrogen cyanide wildfire emissions from Indonesian peat fires during the 2015, 2019, and 2023 El Niño events - TOMCAT data part 1 Antonio G. Bruno et al. https://doi.org/10.5281/zenodo.17194012

Hydrological drivers of hydrogen cyanide wildfire emissions from Indonesian peat fires during the 2015, 2019, and 2023 El Niño events - TOMCAT data part 2 Antonio G. Bruno et al. https://doi.org/10.5281/zenodo.17194065

Hydrological drivers of hydrogen cyanide wildfire emissions from Indonesian peat fires during the 2015, 2019, and 2023 El Niño events - IASI gridded data Antonio G. Bruno et al. https://doi.org/10.5281/zenodo.20584609

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Short summary

Indonesian peatlands store vast carbon reserves, but can release large quantities of greenhouse gases and other species with significant environmental impacts, including hydrogen cyanide (HCN), when fires occur. Analyzing three major El Niño years with satellites and models, we found that emissions depend on local hydrological conditions, not just El Niño strength. Including soil moisture and burn depth can improve emission estimates and climate strategies.