Linking in-canopy chemistry to above-canopy O3, BVOCs, and NOx gas fluxes in the Amazon rainforest

Brown, Flossie; Heald, Colette L.; Steiner, Allison; Yáñez-Serrano, Ana Maria; Kesselmeier, Jürgen; de A. Monteiro, Carolina; Harder, Hartwig; de Araújo, Alessandro C.; Hall, Denisi H.; Dias-Júnior, Cléo Quaresma; Wolff, Stefan

doi:10.5194/acp-26-9181-2026

Articles | Volume 26, issue 12

https://doi.org/10.5194/acp-26-9181-2026

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

https://doi.org/10.5194/acp-26-9181-2026

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

Articles | Volume 26, issue 12

Research article

|

30 Jun 2026

Research article |

| 30 Jun 2026

Linking in-canopy chemistry to above-canopy O₃, BVOCs, and NO_x gas fluxes in the Amazon rainforest

Flossie Brown, Colette L. Heald, Allison Steiner, Ana Maria Yáñez-Serrano, Jürgen Kesselmeier, Carolina de A. Monteiro, Hartwig Harder, Alessandro C. de Araújo, Denisi H. Hall, Cléo Quaresma Dias-Júnior, and Stefan Wolff

Supplement

https://doi.org/10.5194/acp-26-9181-2026-supplement

Data sets

Dataset for: Linking In-Canopy Chemistry to Above-Canopy O3, BVOCs, and NOx Gas Fluxes in the Amazon Rainforest Flossie Brown https://doi.org/10.5281/zenodo.20927018

Model code and software

FORCAsT_ATTO Flossie Brown https://github.com/flossie-brown/FORCAsT_ATTO

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Short summary

The environment inside a forest canopy is often not represented in large atmospheric models. This study uses a detailed canopy model to understand trace gas emissions and chemistry within the Amazon rainforest. We show escape of trace gases from the canopy to the atmosphere can depend on turbulence and vary over the day, which is currently not included in atmospheric models. We show that the atmospheric composition above the Amazon and within the canopy is strongly affected by forest fires.