Articles | Volume 18, issue 14
https://doi.org/10.5194/acp-18-10773-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-18-10773-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
30 Jul 2018
Research article |
| 30 Jul 2018
| 30 Jul 2018
Aircraft observations of the chemical composition and aging of aerosol in the Manaus urban plume during GoAmazon 2014/5
Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, Washington, USA
Mikhail S. Pekour
Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, Washington, USA
Edward C. Fortner
Center for Aerosol and Cloud Chemistry, Aerodyne Research, Billerica, Massachusetts, USA
Paulo Artaxo
Institute of Physics, University of Sao Paulo, Sao Paulo, Brazil
Suzane de Sá
John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts, USA
John M. Hubbe
Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, Washington, USA
Karla M. Longo
University Space Research Association/Goddard Earth Sciences Technology and Research (USRA/GESTAR), National Aeronautics and Space Administration, Goddard Space Flight Center, Columbia, Maryland, USA
Luiz A. T. Machado
Centro de Previsao de Tempo e Estudos Climaticos – Instituto Nacional de Pesquisas Espaciais, Sao Jose dos Campos, Brazil
Scot T. Martin
John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts, USA
Department of Earth and Planetary Sciences, Harvard University, Cambridge, Massachusetts, USA
Stephen R. Springston
Environmental and Climate Sciences Department, Brookhaven National Laboratory, Upton, New York, USA
Jason Tomlinson
Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, Washington, USA
Jian Wang
Environmental and Climate Sciences Department, Brookhaven National Laboratory, Upton, New York, USA
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Latest update: 20 Nov 2024
Short summary
We report aircraft observations of the evolution of organic aerosol in the Manaus urban plume as it ages. We observe dynamic changes in the organic aerosol. The mean carbon oxidation state of the OA increases from −0.6 to −0.45. Hydrocarbon-like organic aerosol (HOA) mass is lost and is balanced out by formation of oxygenated organic aerosol (OOA). Because HOA loss is balanced by OOA formation, we observe little change in the net Δorg / ΔCO values with aging.
We report aircraft observations of the evolution of organic aerosol in the Manaus urban plume as...
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