Aircraft-based observations of isoprene-epoxydiol-derived secondary organic aerosol (IEPOX-SOA) in the tropical upper troposphere over the Amazon region
- Schulz, Christiane (Particle Chemistry, Biogeochemistry and Multiphase Chemistry Departments, Max Planck Institute for Chemistry)
- Schneider, Johannes (Particle Chemistry, Biogeochemistry and Multiphase Chemistry Departments, Max Planck Institute for Chemistry)
- Knote, Christoph (Meteorological Institute, Ludwig Maximilian University)
- Krämer, Martina (University of Vienna)
- Martin, Scot T. (School of Engineering and Applied Sciences, Harvard University)
- Mertes, Stephan (Leibniz Institute for Tropospheric Research)
- Pöhlker, Mira L. (Particle Chemistry, Biogeochemistry and Multiphase Chemistry Departments, Max Planck Institute for Chemistry)
- Sauer, Daniel (Institute for Atmospheric Physics, German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt))
- Voigt, Christiane (Institute for Atmospheric Physics, German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt))
- Walser, Adrian (Faculty of Physics, Faculty of Physics, University of Vienna)
- Weinzierl, Bernadett (Faculty of Physics, Faculty of Physics, University of Vienna)
- Ziereis, Helmut (Institute for Atmospheric Physics, German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt))
- Amorim Holanda, Bruna (Particle Chemistry, Biogeochemistry and Multiphase Chemistry Departments, Max Planck Institute for Chemistry)
- Zöger, Martin (Flight Experiments, German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt))
- Andreae, Meinrat O. (Particle Chemistry, Biogeochemistry and Multiphase Chemistry Departments, Max Planck Institute for Chemistry)
- Artaxo, Paulo (Instituto de Física, Universidade de São Paulo)
- Machado, Luiz A. T. (Centro de Previsão de Tempo e Estudos Climáticos, Instituto Nacional de Pesquisas Espaciais (INPE), Brazil)
- Pöschl, Ulrich (Particle Chemistry, Biogeochemistry and Multiphase Chemistry Departments, Max Planck Institute for Chemistry)
- Wendisch, Manfred (Leipzig Institute for Meteorology, University of Leipzig)
- Borrmann, Stephan (Particle Chemistry, Biogeochemistry and Multiphase Chemistry Departments, Max Planck Institute for Chemistry)
- Appel, Oliver (Particle Chemistry, Biogeochemistry and Multiphase Chemistry Departments, Max Planck Institute for Chemistry)
- Costa, Anja (University of Vienna)
- de Sá, Suzane S. (School of Engineering and Applied Sciences, Harvard University)
- Dreiling, Volker (Flight Experiments, German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt))
- Fütterer, Daniel (Institute for Atmospheric Physics, German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt))
- Jurkat-Witschas, Tina (Institute for Atmospheric Physics, German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt))
- Klimach, Thomas (Particle Chemistry, Biogeochemistry and Multiphase Chemistry Departments, Max Planck Institute for Chemistry)
DOIAbstract
During the ACRIDICON-CHUVA field project (September–October 2014; based in Manaus, Brazil) aircraft-based in situ measurements of aerosol chemical composition were conducted in the tropical troposphere over the Amazon using the High Altitude and Long Range Research Aircraft (HALO), covering altitudes from the boundary layer (BL) height up to 14.4 km. The submicron non-refractory aerosol was characterized by flash-vaporization/electron impact-ionization aerosol particle mass spectrometry. The results show that significant secondary organic aerosol (SOA) formation by isoprene oxidation products occurs in the upper troposphere (UT), leading to increased organic aerosol mass concentrations above 10 km altitude. The median organic mass concentra...
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