Articles | Volume 20, issue 23
https://doi.org/10.5194/acp-20-15037-2020
© Author(s) 2020. 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-20-15037-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
04 Dec 2020
Research article |
| 04 Dec 2020
| 04 Dec 2020
The potential role of organics in new particle formation and initial growth in the remote tropical upper troposphere
Agnieszka Kupc
CORRESPONDING AUTHOR
Chemical Sciences Laboratory, National Oceanic and Atmospheric
Administration, Boulder, CO 80305, USA
Faculty of Physics, Aerosol Physics and Environmental Physics,
University of Vienna, 1090 Vienna, Austria
Christina J. Williamson
Chemical Sciences Laboratory, National Oceanic and Atmospheric
Administration, Boulder, CO 80305, USA
Cooperative Institute for Research in Environmental Sciences,
University of Colorado, Boulder, CO 80309, USA
Anna L. Hodshire
Department of Atmospheric Science, Colorado State University, Fort
Collins, CO 80523, USA
Jan Kazil
Chemical Sciences Laboratory, National Oceanic and Atmospheric
Administration, Boulder, CO 80305, USA
Cooperative Institute for Research in Environmental Sciences,
University of Colorado, Boulder, CO 80309, USA
Chemical Sciences Laboratory, National Oceanic and Atmospheric
Administration, Boulder, CO 80305, USA
Cooperative Institute for Research in Environmental Sciences,
University of Colorado, Boulder, CO 80309, USA
T. Paul Bui
Earth Science Division, NASA Ames Research Center, Moffett Field, CA, USA
Maximilian Dollner
Faculty of Physics, Aerosol Physics and Environmental Physics,
University of Vienna, 1090 Vienna, Austria
Karl D. Froyd
Chemical Sciences Laboratory, National Oceanic and Atmospheric
Administration, Boulder, CO 80305, USA
Cooperative Institute for Research in Environmental Sciences,
University of Colorado, Boulder, CO 80309, USA
Kathryn McKain
Cooperative Institute for Research in Environmental Sciences,
University of Colorado, Boulder, CO 80309, USA
Global Monitoring Laboratory, National Oceanic and Atmospheric
Administration, Boulder, CO, 80305, USA
Andrew Rollins
Chemical Sciences Laboratory, National Oceanic and Atmospheric
Administration, Boulder, CO 80305, USA
Gregory P. Schill
Chemical Sciences Laboratory, National Oceanic and Atmospheric
Administration, Boulder, CO 80305, USA
Cooperative Institute for Research in Environmental Sciences,
University of Colorado, Boulder, CO 80309, USA
Alexander Thames
Department of Meteorology and Atmospheric Science, Pennsylvania State
University, University Park, PA, USA
Bernadett B. Weinzierl
Faculty of Physics, Aerosol Physics and Environmental Physics,
University of Vienna, 1090 Vienna, Austria
Jeffrey R. Pierce
Department of Atmospheric Science, Colorado State University, Fort
Collins, CO 80523, USA
Charles A. Brock
Chemical Sciences Laboratory, National Oceanic and Atmospheric
Administration, Boulder, CO 80305, USA
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Latest update: 15 Nov 2025
Short summary
Tropical upper troposphere over the Atlantic and Pacific oceans is a major source region of new particles. These particles are associated with the outflow from deep convection. We investigate the processes that govern the formation of these particles and their initial growth and show that none of the formation schemes commonly used in global models are consistent with observations. Using newer schemes indicates that organic compounds are likely important as nucleating and initial growth agents.
Tropical upper troposphere over the Atlantic and Pacific oceans is a major source region of new...
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