A025
Atmospheric Oxidation Capacity Constraints: Laboratory Investigations, Field and Remote Sensing Observations, and Modeling Studies

Session ID#: 156622

Session Description:
This session focuses on the investigation of atmospheric oxidation processes of VOCs, initiated by various oxidizing agents, including OH, O3, NO3, and Cl. Observational constraints of these oxidizing agents are sparse, particularly for OH, the atmosphere’s primary oxidant. We solicit presentations that highlight novel studies using laboratory kinetics, in situ and satellite observations, and models that provide insight into the temporal and spatial distribution of these oxidants, their constraints, and the factors that control their distributions from local to global scales. Satellite data have the unique advantage of spatial coverage, so space-based observational constraints on OH and the factors that control OH are particularly encouraged. Additional processes of interest include oxidant impacts on the formation of secondary products (e.g., O3, PAN, and SOA) and their subsequent feedback on climate. Modeling studies are encouraged; particularly those investigating the impact of newly identified radical sources and/or the uncertainties of current sources.
Index Terms:

0305 Aerosols and particles [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0317 Chemical kinetic and photochemical properties [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0365 Troposphere: composition and chemistry [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0368 Troposphere: constituent transport and chemistry [ATMOSPHERIC COMPOSITION AND STRUCTURE]

Primary Convener:  Yasin F Elshorbany, University of South Florida, Atmospheric Chemistry and Climate Laboratory, College of Arts and Sciences, St. Petersberg, FL, United States
Conveners:  Thomas F Hanisco, NASA GSFC, Greenbelt, MD, United States and Philip S Stevens, Indiana University, O'Neill School of Public and Environmental Affairs, Bloomington, United States
 
Atmospheric Oxidation Reactions in the Los Angeles Basin (Invited) (1051611)
Joost A de Gouw, University of Colorado at Boulder, Cooperative Institute for Research in Environmental Sciences (CIRES) and Department of Chemistry, Boulder, United States, Andrew Jensen, Cooperative Institute for Research in Environmental Sciences, Boulder, United States, Olivia J Jenks, University of Colorado at Boulder, Department of Chemistry, Boulder, United States and Tianshu Chen, Shandong University, Environment Research Institute, Jinan, China
 
Comparison of Isoprene+NO3 Chemical Mechanisms at Atmospheric Night-Time Conditions in Chamber Experiments at SAPHIR: Evidence of Epoxy Production and Unimolecular RO2 Decomposition (Invited) (1071341)
Philip Carlsson1, Luc Vereecken1, Anna Novelli1, François Bernard2, Steven S Brown3,4, Bellamy Brownwood5, Changmin Cho6, John Crowley7, Patrick Dewald7, Nils Friedrich7, Juliane L Fry5,8, Mattias Hallquist9, Luisa Hantschke6, Thorsten Hohaus6, Sungah Kang6, Jonathan M Liebman7, Thomas F Mentel6, David Reimer6, Franz Rohrer1, Justin Shenolikar7, Ralf Tillmann6, Epameinondas Tsiligiannis9, Rongrong Wu6, Andreas Wahner1, Astrid Kiendler-Scharr1,10 and Hendrik Fuchs1,10, (1)Forschungszentrum Jülich, Institute of Energy and Climate Research, Troposphere (IEK-8), Jülich, Germany, (2)Université d'Orléans, CNRS, Orléans, France, (3)NOAA Boulder, Boulder, CO, United States, (4)Department of Chemistry and Biochemistry, University of Colorado, Boulder, United States, (5)Reed College, Portland, United States, (6)Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research, Troposphere (IEK-8), Jülich, Germany, (7)Max Planck Institute for Chemistry, Mainz, Germany, (8)Wageningen University and Research, Wageningen, Netherlands, (9)University of Gothenburg, Department of Chemistry, Atmospheric Science, Gothenburg, Sweden, (10)University of Cologne, Cologne, Germany
 
Constraining Tropical OH with Satellite Observations of its Drivers (1071901)
Daniel C Anderson, University of Maryland Baltimore County, Baltimore, MD, United States, Bryan N Duncan, NASA GSFC, Greenbelt, MD, United States, Julie M Nicely, University of Maryland College Park, College Park, MD, United States, Junhua Liu, Morgan State University, Baltimore, United States, Sarah Strode, NASA Goddard Space Flight Center, Greenbelt, MD, United States and Melanie B Follette-Cook, NASA GSFC, Greenbelt, United States
 
Reactive Halogen Species in Bermuda: Observations by Long-Path Differential Optical Absorption Spectroscopy during the BLEACH Summer Experiment. (1074771)
Alyson Fritzmann1, Jochen Stutz2, Sol Cooperdock2, Santo F Colosimo3, Gordon A Novak4, Andrew W Rollins5, Katie Harding6 and Bermuda boundary Layer Experiment on the Atmospheric Chemistry of Halogens (BLEACH) Team, (1)University of California Los Angeles, Department of Atmospheric and Oceanic Sciences, Los Angeles, United States, (2)University of California Los Angeles, Department of Atmospheric and Oceanic Sciences, Los Angeles, CA, United States, (3)University of California Los Angeles, Los Angeles, CA, United States, (4)NOAA ESRL, Chemical Sciences Laboratory, Boulder, United States, (5)NOAA Chemical Sciences Laboratory, Boulder, CO, United States, (6)University of California Los Angeles, Los Angeles, United States
 
Ozone over the tropical Andes from eight years of ozonesonde observations at Universidad San Francisco de Quito (USFQ) in Ecuador (1076533)
Maria Cazorla, Universidad San Francisco de Quito USFQ, Environmental Engineering, Quito, Ecuador, Edgar Herrera, Universidad San Francisco de Quito USFQ, Quito, Ecuador and René Parra, Universidad San Francisco de Quito, Quito, Ecuador
 
Radical Chemistry in Forested Environments: A Chemical Coordinate Analysis (1078709)
Emily Reidy1, Brandon Bottorff1 and Philip S Stevens2, (1)Indiana University Bloomington, O'Neill School of Public and Environmental Affairs, Bloomington, United States, (2)Indiana University, O'Neill School of Public and Environmental Affairs, Bloomington, United States
 
Investigation of the Radical Budget during the Photooxidation of Limonene at Different NO Concentrations in the Atmosphere Simulation Chamber SAPHIR (1087301)
Yat Sing Pang1, Hendrik Fuchs2, Anna Novelli2, Martin Kaminski1, Ismail-Hakki Acir1, Birger Bohn3, Philip Carlsson2, Changmin Cho4, Hans-Peter Dorn5, Andreas Hofzumahaus3, Xin Li6, Anna Lutz7, Sascha Nehr8, David Reimer4, Franz Rohrer2, Ralf Tillmann9, Robert Wegener1, Astrid Kiendler-Scharr2 and Andreas Wahner2, (1)Forschungszentrum Jülich GmbH, Jülich 52428, Germany, (2)Forschungszentrum Jülich, Institute of Energy and Climate Research, Troposphere (IEK-8), Jülich, Germany, (3)Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research, IEK-8: Troposphere, Jülich, Germany, (4)Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research, Troposphere (IEK-8), Jülich, Germany, (5)Forschungszentrum Jülich, Institute of Energy and Climate Research,Troposphere (IEK-8), Juelich, Germany, (6)Peking University, State Key Joint Laboratory for Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Beijing, China, (7)University of Gothenburg, Department of Chemistry, Atmospheric Science, Gothenburg, Sweden, (8)Forschungszentrum Juelich, Juelich, Germany, (9)Institute of Energy and Climate Research, IEK-8, Forschungszentrum Jülich, Jülich, Germany
 
Sources and sinks of HONO in a rural forest environment (1094437)
Xianliang Zhou1, Taera Kim2, Jian Hou3, Honglian Gao4, Ning Zhang3, Steven B Bertman5, Matthew Erickson6, Sergio Luiz Alvarez7, James H Flynn III7, Paul B Shepson8 and Philip S Stevens9, (1)New York State Department of Health, Albany, United States, (2)University at Albany State University of New York, Albany, NY, United States, (3)University at Albany, SUNY, Albany, United States, (4)Dept Environ Health/Tocicology, Bothell, WA, United States, (5)Western Michigan Univ, Institute of the Environment and Sustainability, Kalamazoo, MI, United States, (6)University of Houston, Houston, TX, United States, (7)University of Houston, Department of Earth and Atmospheric Sciences, Houston, TX, United States, (8)Purdue University, Departments of Chemistry, and Earth, Atmospheric, and Planetary Sciences, West Lafayette, IN, United States, (9)Indiana University, O'Neill School of Public and Environmental Affairs, Bloomington, United States
 
The contribution of chemical sinks to ozone fluxes over a temperate coniferous forest (1110149)
Michael P Vermeuel1, Dylan B Millet2, Delphine Farmer3, Mj Riches4, Matson A Pothier3, Michael Link5, Sara Williams3 and Lauren Garofalo3, (1)University of Minnesota Twin Cities, Minneapolis, MN, United States, (2)University of Minnesota Twin Cities, St Paul, United States, (3)Colorado State University, Department of Chemistry, Fort Collins, United States, (4)Colorado State University, Fort Collins, CO, United States, (5)National Institute of Standards and Technology Gaithersburg, Engineering Laboratory, Gaithersburg, United States
 
Summertime Total OH reactivity Measurements from a Pine Forest during the Flux Closure Study (FluCS) (1112570)
Vinay Kumar1, Michael P Vermeuel2, Brandon Bottorff3, Emily Reidy3, Dylan B Millet4, Delphine Farmer5 and Philip S Stevens6, (1)Indiana University Bloomington, O'Neill School of Public and Environmental Affairs, Bloomington, IN, United States, (2)University of Wisconsin Madison, Chemistry, Madison, United States, (3)Indiana University Bloomington, O'Neill School of Public and Environmental Affairs, Bloomington, United States, (4)University of Minnesota Twin Cities, St Paul, United States, (5)Colorado State University, Department of Chemistry, Fort Collins, United States, (6)Indiana University, O'Neill School of Public and Environmental Affairs, Bloomington, United States
 
HOx Radical Chemistry in a Ponderosa Pine Forest: Measurement and Model Comparison (1129747)
Paige Price1, Emily Reidy2, Michael P Vermeuel3, Vinay Kumar4, Brandon Bottorff1, Michael Link5, Matson A Pothier5, Lauren Garofalo5, Dylan B Millet6, Delphine Farmer5 and Philip S Stevens7, (1)Indiana University Bloomington, O'Neill School of Public and Environmental Affairs, Bloomington, United States, (2)Indiana University Bloomington, Chemistry, Bloomington, United States, (3)University of Minnesota Twin Cities, Minneapolis, MN, United States, (4)Indiana University Bloomington, O'Neill School of Public and Environmental Affairs, Bloomington, IN, United States, (5)Colorado State University, Department of Chemistry, Fort Collins, United States, (6)University of Minnesota Twin Cities, St Paul, United States, (7)Indiana University, O'Neill School of Public and Environmental Affairs, Bloomington, United States
 
Observational Constraints of NOx Abundance, Sources, and Cycling in the Remote Marine Boundary Layer (1130086)
Gordon Novak1, Andrew W Rollins2, Eleanor Waxman3, Alyson Fritzmann4, Jochen Stutz5, Becky Alexander6, Joel A Thornton6, Philip Rund7, Ben Lee8, Lucy Carpenter9, Marvin Shaw10, Will Stephen Drysdale9, Peter M Edwards11, John W Halfacre12, Lewis Marden12 and Andrew Peters13, (1)NOAA ESRL, Chemical Sciences Laboratory, Boulder, CO, United States, (2)NOAA Chemical Sciences Laboratory, Boulder, CO, United States, (3)CU/CIRES - NOAA/ESRL, Boulder, CO, UNITED STATES, (4)University of California Los Angeles, Department of Atmospheric and Oceanic Sciences, Los Angeles, United States, (5)University of California Los Angeles, Department of Atmospheric and Oceanic Sciences, Los Angeles, CA, United States, (6)University of Washington, Department of Atmospheric Sciences, Seattle, United States, (7)University of Maryland Baltimore County, Baltimore, MD, United States, (8)University of Washington Seattle Campus, Department of Atmospheric Sciences, Seattle, WA, United States, (9)University of York, Wolfson Atmospheric Chemistry Laboratories, Department of Chemistry, York, United Kingdom, (10)Wolfson Atmospheric Chemistry Laboratories, Department of Chemistry, University of York, York, United Kingdom, (11)CIRES, Boulder, CO, United States, (12)University of York, York, United Kingdom, (13)Bermuda Institute of Ocean Sciences, St.George's, Bermuda
 
Experimental chemical budgets of OH, HO2 and RO2 radicals in rural air in Western Germany during the JULIAC campaign 2019 (1137450)
Changmin Cho1,2, Hendrik Fuchs3, Andreas Hofzumahaus4, Frank Holland5, William Bloss6, Birger Bohn4, Hans-Peter Dorn7, Marvin Glowania4, Thorsten Hohaus2, Paul Steven Monks8, Lu Liu5, Doreen Niether9, Franz Rohrer3, Roberto Sommariva10, Zhaofeng Tan4, Ralf Tillmann11, Astrid Kiendler-Scharr3, Andreas Wahner3 and Anna Novelli3, (1)GIST Gwangju Institute of Science and Technology, Gwangju, Korea, Republic of (South), (2)Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research, Troposphere (IEK-8), Jülich, Germany, (3)Forschungszentrum Jülich, Institute of Energy and Climate Research, Troposphere (IEK-8), Jülich, Germany, (4)Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research, IEK-8: Troposphere, Jülich, Germany, (5)Forschungszentrum Juelich GMBH, Institute of Energy and Climate Research, IEK-8: Troposphere, Juelich, Germany, (6)University of Birmingham, School of Geography, Earth and Environmental Sciences, Birmingham, United Kingdom, (7)Forschungszentrum Jülich, Institute of Energy and Climate Research,Troposphere (IEK-8), Juelich, Germany, (8)National Centre for Atmospheric Science, Leeds, United Kingdom, (9)Forschungszentrum Jülich, Institute of Energy and Climate Research,Troposphere (IEK-8), Jülich, Germany, (10)University of Leicester, Chemistry, Leicester, United Kingdom, (11)Institute of Energy and Climate Research, IEK-8, Forschungszentrum Jülich, Jülich, Germany
 
Can Measurements of Trace Gases Other Than CH3CCl3 Supply Useful Information About Atmospheric Hydroxyl Radical Abundance and Variability on Broad Scales? (1145588)
Stephen A Montzka, NOAA Boulder, Boulder, CO, United States, Geoffrey S Dutton, NOAA/ESRL GMD, Boulder, CO, United States, Brad David Hall, NOAA Boulder, Boulder, United States, Fred L Moore, NOAA, Boulder, CO, United States, Eric J Hintsa, Cooperative Institute for Research in Environmental Sciences, Boulder, United States, Isaac J Vimont, NOAA, Global Monitoring Laboratory, Boulder, United States and Matthew Ryan Gentry, University of Colorado Boulder, Department of Atmospheric and Oceanic Sciences, Boulder, CO, United States
 
Effects of Chlorine Chemistry on Atmospheric Composition in Contrasting Urban Environments (1145687)
Meghna Soni1,2, Rolf Sander3, Lokesh Kumar Sahu1, Domenico Taraborrelli4, Pengfei Liu5, Ankit Patel6, Imran A Girach7, Andrea Pozzer3, Sachin S Gunthe6,8 and Narendra Ojha1, (1)Physical Research Laboratory, Space and Atmospheric Sciences Division, Ahmedabad, India, (2)Indian Institute of Technology Gandhinagar, Ahmedabad, India, (3)Max Planck Institute for Chemistry, Mainz, Germany, (4)Forschungszentrum Jülich, Institute of Energy and Climate Research, Troposphere (IEK-8), Jülich, Germany, (5)Georgia Institute of Technology, School of Earth and Atmospheric Sciences, Atlanta, United States, (6)Indian Institute of Technology Madras, EWRE Division, Department of Civil Engineering, Chennai, India, (7)Space Applications Center, Indian Space Research Organisation, Ahemadabad, India, (8)Indian Institute of Technology Madras, Laboratory for Atmospheric and Climate Sciences, Chennai, India
 
An Analysis of Nitrate Reactivity with Volatile Organic Compounds in the Greater Toronto Area and Montreal (1163570)
Brendan O'Connell, University of Toronto, Toronto, ON, Canada and Jennifer G Murphy, University of Toronto, Department of Chemistry, Toronto, ON, Canada
 
Using Measurements of Atmospheric 14CO in a Global Network to Improve Understanding of OH Spatial and Temporal Variability (1173332)
Vasilii V Petrenko1, Edward Crosier1, Andrew Milford Smith2, Bin Yang2, Margaret Scholer3, Lee T Murray1, Kellie McCrea3, Aidan Colton4, Bryan Thomas5, Gatavai Talamoa5, Ryan Musick5, Hinrich Schaefer6, Rowena Claire Moss7, Gerard Spain8, Hello Yann9, Patrick Hernandez9, Edmund Blades10, Roxana Kazemi1, Rebecca Chewitt-Lucas11 and Marika P Stock3, (1)University of Rochester, Department of Earth and Environmental Sciences, Rochester, NY, United States, (2)Australian Nuclear Science and Technology Organisation (ANSTO), Kirrawee DC, Australia, (3)University of Rochester, Department of Earth and Environmental Sciences, Rochester, United States, (4)NOAA Earth System Research Laboratory, Global Monitoring Division, Boulder, CO, United States, (5)NOAA Earth System Research Laboratory, Global Monitoring Division, Boulder, United States, (6)NIWA, Wellington, New Zealand, (7)National Institute of Water and Atmospheric Research (NIWA), Wellington, New Zealand, (8)NUI Galway, Galway, Ireland, (9)Université de La Réunion, Saint Denis, France, (10)Ministry of Health and Wellness, The Queen Elizabeth Hospital, Bridgetown, Barbados, (11)Carribean Institute of Meteorology and Hydrology, Bridgetown, Barbados
 
A Novel Modification to the CRM Technique to Assess First and Second-generation VOC Products and Reaction Rates with OH. (1185764)
Julie Devlin1, Saewung Kim2, Alex B Guenther1 and Sanjeevi Nagalingam1, (1)University of California Irvine, Earth System Science, Irvine, United States, (2)University of California Irvine, Department of Earth System Science, Irvine, United States
 
Assessment of the Nitrous Acid Photostationary State using Measurements in Boise, Idaho (1191287)
Andrew Lindsay1, Kyle Bannecker2, Ezra C D Wood3 and Brigitte M Weesner2, (1)Drexel University, Chemistry, Philadelphia, PA, United States, (2)Drexel University, Philadelphia, United States, (3)Drexel University, Department of Chemistry, Philadelphia, PA, United States
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