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Session Proposal: New Particle Formation in the Troposphere: Observations, Experiments and Modeling (AGU25)

A081
New Particle Formation in the Troposphere: Observations, Experiments and Modeling

Session ID#: 249406

Session Description:
New particle formation in the troposphere influences cloud formation and the climate. Over the past decade, significant progress has been made in identifying key inorganic and organic vapors driving nucleation. However, large uncertainties remain in our understanding of nucleation. Modeling studies fail to capture radiative forcings over broad regions, particularly the Southern Ocean, indicating key processes are not constrained. Furthermore, recent observations suggest biogenic precursors are transported to the upper troposphere by deep convective clouds and nucleate at high altitudes. However, the importance of this process is not yet quantified. This session solicits contributions on nucleation including field observations, experimental measurements such as chamber and flow tube studies, parameterization of nucleation drivers, and modeling studies incorporating new particle formation and climate effects. By bringing together diverse perspectives, this session will present new advancements and identify key gaps in our understanding of nucleation processes and their broader atmospheric effects.
Index Terms:

0305 Aerosols and particles [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0368 Troposphere: constituent transport and chemistry [ATMOSPHERIC COMPOSITION AND STRUCTURE]
3311 Clouds and aerosols [ATMOSPHERIC PROCESSES]
3337 Global climate models [ATMOSPHERIC PROCESSES]
Primary Convener:  Nirvan Bhattacharyya, Carnegie Mellon University, Center for Atmospheric Particle Studies, Pittsburgh, PA, United States
Conveners:  Andrea Pozzer, Max Planck Institute for Chemistry, Atmospheric Chemistry, Mainz, Germany, Lee Tiszenkel, University of Alabama in Huntsville, Department of Atmospheric and Earth Science, Huntsville, AL, United States and Neil McPherson Donahue, Carnegie Mellon University, Center for Atmospheric Particle Studies, Pittsburgh, United States
Student/Early Career Convener:  Boxing Yang, Paul Scherrer Institute, PSI Center for Energy and Environmental Sciences, Villigen, Switzerland
 
New Particle Formation and Growth in Polluted Regions: Present Conditions and Future Evolution (Invited) (1853237)
Bin Zhao1, Jiewen Shen1, Zeqi LI1, Shuxiao Wang2, Xiuhui Zhang3, Neil McPherson Donahue4 and ManishKumar Shrivastava5, (1)Tsinghua University, Beijing, China, (2)Tsinghua University, State Key Laboratory of Regional Environment and Sustainability, School of Environment, Beijing, China, (3)Beijing Institute of Technology, Beijing, China, (4)Carnegie Mellon University, Center for Atmospheric Particle Studies, Pittsburgh, United States, (5)Pacific Northwest National Laboratory, Richland, United States
 
Temperature-Controlled α-Pinene Oxidation and Biogenic Nucleation in the Free Troposphere (1873935)
Duzitian Li, University of Chicago, Chicago, IL, United States and Mingyi Wang, University of Chicago, Department of Geophysical Sciences, Chicago, IL, United States
 
Modeling New Particle Formation and Growth Observed in Urban Outflow Plumes during AEROMMA (1900707)
En Li1, Samuel O'Donnell1, Kelvin Bates2, Matthew Mitchell Coggon3, Emily V Fischer1, Jessica Gilman3, Georgios Gkatzelis4, Emily Lill1, Ming Lyu5, Alison Piasecki6, Ilana Pollack7, Andrew W Rollins3, Chelsea E. Stockwell3, Victoria Treadaway8, Carsten Warneke3, Eleanor Waxman3, Kristen L Zuraski9, Shantanu Jathar10 and Jeffrey R Pierce1, (1)Colorado State University, Department of Atmospheric Science, Fort Collins, United States, (2)University of Colorado Boulder, Department of Mechanical Engineering, Boulder, United States, (3)NOAA Chemical Sciences Laboratory, Boulder, United States, (4)Forschungszentrum Jülich, Institute of Climate and Energy Systems, Troposphere (ICE-3), Jülich, Germany, (5)NOAA, Chemical Sciences Laboratory, Boulder, United States, (6)USGS Geology, Geophysics, and Geochemistry Science Center, Denver, United States, (7)CIRES, University of Colorado Boulder & NOAA Chemical Sciences Laboratory, Boulder, United States, (8)Colorado Department of Public Health and Environment, Denver, United States, (9)Quantinuum, Broomfield, United States, (10)Colorado State University, Department of Mechanical Engineering, Fort Collins, United States
 
New Particle Formation Events and Constraints on Particle Growth at the Taunus Observatory (1912294)
Nirvan Bhattacharyya1, Manuel Granzin2, Marcel Zauner-Wieczorek2, Timo Keber1, Mario Simon2, Andreas Kurten2 and Joachim Curtius2, (1)Goethe University Frankfurt, Institute for Atmospheric and Environmental Sciences, Frankfurt, Germany, (2)Goethe University Frankfurt, Institute for Atmospheric and Environmental Sciences, Frankfurt am Main, Germany
 
Characteristics of New Particle Formation Events Occurred during the ASIA-AQ Campaign (1940001)
Chanwoo Ahn1, Pyosuk Seo2,3, Minsu Park1, Jinsoo Park4, Hee-Jung Yoo5, Richard Moore6, Luke D Ziemba6, Michael Shook7, Edward Winstead7, Francesca Gallo7, Carolyn E Jordan7, Elizabeth Brooke Wiggins7, Sayantee Roy7 and Seong Soo Yum1,3, (1)Yonsei University, Department of Atmospheric Sciences, Seoul, South Korea, (2)Yonsei University, Department of Atmospheric Sciences, Seoul, Korea, Republic of (South), (3)Korea Institute of Science and Technology, Climate Environmental Research Institute, Seoul, South Korea, (4)National Institute of Environmental Research, Air Quality Research Division, Incheon, South Korea, (5)National Institute of Meteorological Sciences, Global Atmospheric Watch and Research Division, Seogwipo, South Korea, (6)NASA Langley Research Center, Hampton, VA, United States, (7)NASA Langley Research Center, Hampton, United States
 
RO2 Lifetime Drives Biogenic New Particle Formation and Growth in the Planetary Boundary Layer (1947528)
Boxing Yang1, Lu Liu1, Jenna DeVivo2, Lucía Caudillo-Plath3, Douglas Russell3, Felix Kunkler4, Bernhard Judmaier5, Zhensen Zheng5, Wiebke Scholz5, Eva Sommer6, Wenjuan Yu7, Alessia Pignatelli1, Abhishek Upadhyay1, Lubna Dada1, Andrea Pozzer4, Neil McPherson Donahue2 and Imad El-Haddad1, (1)Paul Scherrer Institute, PSI Center for Energy and Environmental Sciences, Villigen, Switzerland, (2)Carnegie Mellon University, Center for Atmospheric Particle Studies, Pittsburgh, United States, (3)Goethe University Frankfurt, Institute for Atmospheric and Environmental Sciences, Frankfurt, Germany, (4)Max Planck Institute for Chemistry, Atmospheric Chemistry, Mainz, Germany, (5)University of Innsbruck, Institute for Ion Physics and Applied Physics, Innsbruck, Austria, (6)CERN European Organization for Nuclear Research, Geneva, Switzerland, (7)University of Helsinki, Institute for Atmospheric and Earth System Research, Helsinki, Finland
 
Low-volatility Organics are Key to New Particle Formation in Urban Houston (1971995)
Lee Tiszenkel, University of Alabama in Huntsville, Department of Atmospheric and Earth Science, Huntsville, AL, United States, Shanhu Lee, University of Alabama in Huntsville, Department of Atmospheric and Earth Science, Huntsville, United States, James Flynn, University of Houston, Houston, United States and Alana Dodero, Texas A&M University College Station, Department of Atmospheric Sciences, College Station, TX, United States
 
Role of Amines in Determining Vertical Gradients in New Particle Formation in the Southern Great Plains (1973349)
Bri Dobson1, Daniel J Katz1, Tamanna Subba2, Mitchell Alton3, Harald Stark1,3, Douglas R Worsnop3, Manjula R Canagaratna3, Chongai Kuang2 and Eleanor C Browne1, (1)University of Colorado Boulder, Department of Chemistry and Cooperative Institute for Research in Environmental Sciences, Boulder, United States, (2)Brookhaven National Laboratory, Environmental Science and Technologies Department, Upton, United States, (3)Aerodyne Research Inc., Billerica, United States
 
Conditions Leading to New Particle Formation Above the Arctic Polar Dome (1996036)
Rae Pooley1, Richard Leaitch2 and Megan D Willis1, (1)Colorado State University, Department of Chemistry, Fort Collins, United States, (2)Environment and Climate Change Canada, Toronto, ON, Canada
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