A54A:
Atmospheric Aerosol Processes Across Scales IV


Submit an Abstract to this Session


Session ID#: 58145

Session Description:
A key challenge in predicting aerosol effects on climate is the multi-scale nature of the aerosol system: large-scale aerosol effects on clouds and radiation are governed by processes that occur on the particle scale. The characteristics of individual aerosol particles exhibit tremendous variability, change continuously during transport, and impact climate-relevant aerosol properties, such as particle optical properties, reactivity, phase state, cloud condensation activation. However, particle-scale processes are not easily characterized by measurements or easily represented in large-scale models. This session invites submissions on laboratory, field measurements, and/or modeling studies that investigate the physical and chemical properties of aerosol particles and their evolution. Studies that apply advances in the understanding of particle-scale processes to improve the aerosol representation in large-scale models are welcome.
Primary Convener:  Swarup China, Pacific Northwest National Laboratory, Environmental Molecular Sciences Laboratory, Richland, United States
Conveners:  Laura Fierce, Brookhaven National Laboratory, Environmental & Climate Sciences, Upton, NY, United States, Manabu Shiraiwa, University of California Irvine, Department of Chemistry, Irvine, CA, United States and Kerri Pratt, University of Michigan Ann Arbor, Department of Chemistry, Ann Arbor, United States
Primary Liaison:  Swarup China, Pacific Northwest National Laboratory, Environmental Molecular Sciences Laboratory, Richland, United States
Chairs:  Manabu Shiraiwa, Max-Planck-Institut für Chemie, Mainz, Germany, Akua A Asa-Awuku, University of California Riverside, Riverside, United States, Kerri Pratt, University of Michigan Ann Arbor, Department of Chemistry, Ann Arbor, United States and Laura Fierce, University of Illinois at Urbana Champaign, Civil and Environmental Engineering, Urbana, United States
OSPA Liaison:  Laura Fierce, University of Illinois at Urbana Champaign, Civil and Environmental Engineering, Urbana, United States
Index Terms:

0305 Aerosols and particles [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0320 Cloud physics and chemistry [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0368 Troposphere: constituent transport and chemistry [ATMOSPHERIC COMPOSITION AND STRUCTURE]
3311 Clouds and aerosols [ATMOSPHERIC PROCESSES]

Abstracts Submitted to this Session:

Diffusion coefficients of organics in organic-water solutions: comparisons with Stokes-Einstein predictions and implications for atmospheric mixing times (350508)
Erin Evoy1, Adrian M Maclean1, Saeid Kamal2, Grazia Rovelli3, Jonathan Reid3 and Allan K Bertram4, (1)University of British Columbia, Chemistry, Vancouver, BC, Canada, (2)University of British Columbia, Department of Chemistry, Vancouver, BC, Canada, (3)University of Bristol, School of Chemistry, Bristol, United Kingdom, (4)The University of British Columbia, Department of Chemistry, Vancouver, BC, Canada
Surface Tension and Absorption Measurements of Single Aerosol Particles (369461)
Thomas Colin Preston, McGill University, Department of Atmospheric and Oceanic Sciences, Montreal, QC, Canada
Multiphase Organic–Inorganic Aerosol Models: A Pathway to Reduced Complexity (379667)
Andreas Zuend and Kyle Gorkowski, McGill University, Department of Atmospheric and Oceanic Sciences, Montreal, QC, Canada
Timescale of Atmospheric Secondary Organic Aerosols to Reach Equilibrium at Various Temperatures and Relative Humidities (396012)
Ying Li, University of California Irvine, Department of Chemistry, Irvine, United States and Manabu Shiraiwa, University of California Irvine, Department of Chemistry, Irvine, CA, United States
Influence of Relative Humidity on Multiphase Chemical and Photochemical Kinetics (384997)
Markus Ammann1, Pablo Corral Arroyo2, Peter Aaron Alpert1, Christian George3, Kurtis T. Malecha4 and Sergey Nizkorodov5, (1)Paul Scherrer Institute, Laboratory of Atmospheric Chemistry, Villigen, Switzerland, (2)Paul Scherrer Institute, Laboratory of Environmental Chemistry, Villingen, Switzerland, (3)Univ. Lyon, Université Claude Bernard Lyon 1, CNRS, IRCELYON,69626,Villeurbanne,France, Villeurbanne, France, (4)University of California, Department of Chemistry, Irvine, CA, United States, (5)Univ California, Irvine, United States
Particle pH and the Gas-Particle Partitioning of Inorganic and Organic Species: Observations Versus Predictions (440682)
Rodney J Weber1, Theodora Nah2, Ifayoyinsola Ibikunle3, Amy Sullivan4, Hongyu Guo5, L Gregory Huey6, David Tanner3 and Athanasios Nenes7,8, (1)Georgia Institute of Technology, School of Earth and Atmospheric Sciences, Atlanta, GA, United States, (2)Georgia Institute of Technology, School of Chemical and Biomolecular Engineering, Atlanta, United States, (3)Georgia Institute of Technology, Atlanta, GA, United States, (4)Colorado State University, Department of Atmospheric Science, Fort Collins, United States, (5)University of Colorado at Boulder, Cooperative Institute for Research in Environmental Sciences (CIRES) and Department of Chemistry, Boulder, United States, (6)Georgia Institute of Technology Main Campus, School of Earth and Atmospheric Sciences, Atlanta, United States, (7)Ecole Polytechnique Federale de Lausanne, School of Architecture, Civil and Environmental Engineering (ENAC), Laboratory of Atmospheric Processes and their Impacts (LAPI), Lausanne, Switzerland, (8)National Observatory of Athens, Athens, Greece

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