Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 26, issue 14
Articles | Volume 26, issue 14
https://doi.org/10.5194/acp-26-10679-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-26-10679-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 14
Research article
 | 
30 Jul 2026
Research article |  | 30 Jul 2026

Estimation of nocturnal boundary layer height in the central Amazon, supported by gas concentration profiles

Carla M. A. Souza, Anne C. S. Mendonça, Hella van Asperen, Flávio A. F. D'Oliveira, Santiago Botía, Luís G. N. Martins, Denisi H. Hall, Raoni A. Santana, Gilberto Fisch, Leonardo R. Oliveira, Jailson R. Mata, Ranyelli Figueiredo, Rachel Albrecht, Bruno T. T. Portela, Carlos A. Quesada, and Cléo Q. Dias-Júnior

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Short summary
We investigated how the height of the nocturnal air layer (hn) above the Amazon forest changes over the year and how this influences gas measurements. Using two years of tower observations, we found that this layer is higher during wetter periods and much lower during dry periods linked to large climate events. hn can controls how gases accumulate or disperse at night, which affects how we interpret observations and improve weather and climate predictions.
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