Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 25, issue 19
Articles | Volume 25, issue 19
https://doi.org/10.5194/acp-25-12197-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-25-12197-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 25, issue 19
Research article
 | 
07 Oct 2025
Research article |  | 07 Oct 2025

Amazon rainforest ecosystem exchange of CO2 and H2O through turbulent understory ejections

Robbert P. J. Moonen, Getachew A. Adnew, Jordi Vilà-Guerau de Arellano, Oscar K. Hartogensis, David J. Bonell Fontas, Shujiro Komiya, Sam P. Jones, and Thomas Röckmann

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Latest update: 03 May 2026
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Short summary
Understory ejections are distinct turbulent features emerging in prime tall-forest ecosystems. We share a method to isolate understory ejections based on H2O–CO2 anomaly quadrants. From these, we calculate the flux contributions of understory ejections and all flux quadrants. In addition, we show that a distinctly depleted isotopic composition can be found in the ejected water vapour. Finally, we explored the role of clouds as a potential trigger for understory ejections.
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