Articles | Volume 16, issue 15
https://doi.org/10.5194/acp-16-9727-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/acp-16-9727-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
03 Aug 2016
Research article |
| 03 Aug 2016
Biogenic cloud nuclei in the central Amazon during the transition from wet to dry season
James D. Whitehead
Centre for Atmospheric Science, SEES, University of Manchester, Oxford Road, Manchester, UK
Eoghan Darbyshire
Centre for Atmospheric Science, SEES, University of Manchester, Oxford Road, Manchester, UK
Joel Brito
Institute of Physics, University of São Paulo, Rua do Matão, Travessa R, 187, CEP 05508-090, São Paulo, Brazil
Henrique M. J. Barbosa
Institute of Physics, University of São Paulo, Rua do Matão, Travessa R, 187, CEP 05508-090, São Paulo, Brazil
Ian Crawford
Centre for Atmospheric Science, SEES, University of Manchester, Oxford Road, Manchester, UK
Rafael Stern
Instituto Nacional de Pesquisas da Amazônia, Av. André Araújo, 2936, Aleixo, CEP 69060-001, Manaus, Brazil
Martin W. Gallagher
Centre for Atmospheric Science, SEES, University of Manchester, Oxford Road, Manchester, UK
Paul H. Kaye
Science and Technology Research Institute, University of Hertfordshire, Hertfordshire, UK
James D. Allan
Centre for Atmospheric Science, SEES, University of Manchester, Oxford Road, Manchester, UK
Centre for Atmospheric Science, SEES, University of Manchester, Oxford Road, Manchester, UK
Paulo Artaxo
Institute of Physics, University of São Paulo, Rua do Matão, Travessa R, 187, CEP 05508-090, São Paulo, Brazil
Gordon McFiggans
CORRESPONDING AUTHOR
Centre for Atmospheric Science, SEES, University of Manchester, Oxford Road, Manchester, UK
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Latest update: 23 Nov 2025
Short summary
We present measurements of aerosols during the transition from wet to dry seasons at a pristine rainforest site in central Amazonia. By excluding pollution episodes, we focus on natural biogenic aerosols. Submicron aerosols are dominated by organic material, similar to previous wet season measurements. Larger particles are dominated by biological material, mostly fungal spores, with higher concentrations at night. This study provides important data on the nature of particles above the Amazon.
We present measurements of aerosols during the transition from wet to dry seasons at a pristine...
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