Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 25, issue 21
Articles | Volume 25, issue 21
https://doi.org/10.5194/acp-25-14923-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-25-14923-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 25, issue 21
Research article
 | 
06 Nov 2025
Research article |  | 06 Nov 2025

Distinct aerosol populations and their vertical gradients in central Amazonia revealed by optical properties and cluster analysis

Rafael Valiati, Bruno B. Meller, Marco A. Franco, Luciana V. Rizzo, Luiz A. T. Machado, Sebastian Brill, Bruna A. Holanda, Leslie A. Kremper, Subha S. Raj, Samara Carbone, Cléo Q. Dias-Júnior, Fernando G. Morais, Meinrat O. Andreae, Ulrich Pöschl, Christopher Pöhlker, and Paulo Artaxo

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Short summary
This study highlights the different aerosol populations that are commonly observed in the central Amazon. Vertical gradients of aerosol optical and chemical properties were evaluated on different atmospheric conditions, and showed distinct characteristics of these particles. Intercontinental transport events bring to the region particles with a contrasting chemical composition, while vertical transport processes influence the aerosol properties by promoting the development of coating and aging.
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