A43M:
Organic Carbon in the Atmosphere: Reactivity, Budgets, and Lifecycle II

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Session ID#: 16342

Session Description:
The oxidation of organic compounds plays a central role in the chemistry of the troposphere, as it controls the cycling of oxidants and forms key secondary products such as ozone and secondary organic aerosol. Accurately representing such processes requires a detailed understanding of the reactivity, fate, and budget of atmospheric organic compounds under a wide range of conditions, from pristine to anthropogenically-dominated environments. This session will focus on recent advancements in our understanding of the overall atmospheric budget and lifecycle of reactive organic carbon, as enabled by new field, laboratory, and modeling efforts. Of particular interest are studies of rates and products of reactions affecting organic carbon in both the gas and condensed phases, characterization of the reactivity of complex organic mixtures (e.g., by OH reactivity measurements), and new modeling approaches for describing the evolving composition and chemistry of atmospheric organic species.
Primary Convener:  Jesse H Kroll, Massachusetts Institute of Technology, Civil and Environmental Engineering, Cambridge, MA, United States
Conveners:  Jennifer Kaiser, Georgia Institute of Technology, School of Civil and Environmental Engineering, Atlanta, GA, United States and Frank N Keutsch, Harvard University, School of Engineering and Applied Sciences, Department of Chemistry and Chemical Biology and Department of Earth and Planetary Sciences, Cambridge, MA, United States
Chairs:  Jesse H Kroll, Massachusetts Institute of Technology, Civil and Environmental Engineering, Cambridge, MA, United States and Jennifer Kaiser, Georgia Institute of Technology, School of Civil and Environmental Engineering, Atlanta, GA, United States
OSPA Liaison:  Frank N Keutsch, Harvard University, School of Engineering and Applied Sciences, Department of Chemistry and Chemical Biology and Department of Earth and Planetary Sciences, Cambridge, MA, United States
Index Terms:

0305 Aerosols and particles [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0317 Chemical kinetic and photochemical properties [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0322 Constituent sources and sinks [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0365 Troposphere: composition and chemistry [ATMOSPHERIC COMPOSITION AND STRUCTURE]

Abstracts Submitted to this Session:

A Global Perspective on Reactive Organic Carbon in the Atmosphere (Invited) (118573)
Colette L Heald, Massachusetts Institute of Technology, Civil and Environmental Engineering, Cambridge, United States and Sarah Safieddine, Massachusetts Institute of Technology, Cambridge, MA, United States
Assessment of the Simulated Molecular Composition with the GECKO-A Modeling Tool Using Chamber Observations for α-Pinene. (141756)
Bernard Aumont1, Marie Camredon1, Gabriel A Isaacman-VanWertz2, Cyril Karam1, Richard Valorso1, Sasha Madronich3 and Jesse H Kroll4, (1)LISA, UMR CNRS 7583, Universités Paris Est Creteil et Paris Diderot, France, Créteil, France, (2)Massachusetts Institute of Technology, Cambridge, MA, United States, (3)National Center for Atmospheric Research, Boulder, CO, United States, (4)Massachusetts Institute of Technology, Civil and Environmental Engineering, Cambridge, MA, United States
Incorporating recent advances in isoprene photooxidation into GEOS-Chem: Effects on oxidant, NOx, and VOC budgets (189865)
Kelvin Hamilton Bates1, Renee McVay2, Alex Teng2, John D Crounse3, Tran Nguyen4, Eric Praske2, Rebecca Schwantes2, Jason M St Clair5, Hannah M Allen2, John Seinfeld6 and Paul O Wennberg7, (1)University of California Davis, Davis, United States, (2)California Institute of Technology, Pasadena, CA, United States, (3)California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, United States, (4)UC Davis, Environmental Toxicology, Davis, United States, (5)University of Maryland Baltimore County, Joint Center for Earth Systems Technology, Baltimore, MD, United States, (6)California Institute of Technology, Department of Chemical Engineering, Pasadena, United States, (7)California Institute of Technology, Division of Engineering and Applied Science, Pasadena, United States
Chemical characterization of sesquiterpene emissions and oxidation in the Amazon using SV-TAG (143026)
Lindsay Yee1, Gabriel A Isaacman-VanWertz2, Rebecca Ann Wernis2, Nathan M Kreisberg3, Mary-Alice Upshur4, Regan J Thomson4, Franz Geiger4, Mads S Bering5, Marianne Glasius6, John H Offenberg7, Michael Lewandowski8, Yingjun Liu9, Karena A McKinney10, Suzane S de Sá11, Scot T Martin11, M. Lizabeth L Alexander12, Brett B. Palm13, Jose L. Jimenez14, Joel Brito15, Paulo Artaxo15, Weiwei Hu16, Pedro Campuzano-Jost17, Douglas Day18, Juarez Viegas19, Antonio O Manzi20, Maria B Oliveira21, Rodrigo de Souza20, Luiz Machado22, Karla Longo23, Susanne V Hering3 and Allen H Goldstein24, (1)University of California Berkeley, Department of Environmental Science, Policy, & Management, Berkeley, CA, United States, (2)University of California Berkeley, Berkeley, CA, United States, (3)Aerosol Dynamics Inc., Berkeley, CA, United States, (4)Northwestern University, Department of Chemistry, Evanston, IL, United States, (5)Aarhus University, Dep. of Chemistry, Aarhus C, Denmark, (6)Aarhus University, Department of Chemistry, Aarhus C, Denmark, (7)Environmental Protection Agency Research Triangle Park, Research Triangle Park, NC, United States, (8)U.S. Environmental Protection Agency, National Exposure Research Laboratory, Research Triangle Park, NC, United States, (9)Harvard University, Cambridge, United States, (10)Harvard University, School of Engineering and Applied Sciences, Cambridge, MA, United States, (11)Harvard University, Cambridge, MA, United States, (12)Pacific Northwest National Laboratory, Richland, WA, United States, (13)University of Colorado at Boulder, 9Dept. of Chemistry & Biochemistry and Cooperative Institute for Research in Environmental Sciences, Boulder, CO, United States, (14)University of Colorado Boulder, Department of Chemistry, Boulder, United States, (15)USP University of Sao Paulo, São Paulo, Brazil, (16)Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, China, (17)University of Colorado Boulder, Department of Chemistry and Cooperative Institute for Research in Environmental Sciences, Boulder, United States, (18)University of Colorado at Boulder, Dept. of Chemistry & Biochemistry and Cooperative Institute for Research in Environmental Sciences, Boulder, CO, United States, (19)Instituto Nacional de Pesquisas da Amazonia, Manaus, AM, Brazil, (20)National Institute for Amazon Research (INPA), Manaus, Brazil, (21)Universidade do Estado do Amazonas, Manaus, AM, Brazil, (22)INPE National Institute for Space Research, Sao Jose dos Campos, Brazil, (23)University of California Irvine, Irvine, CA, United States, (24)University of California Berkeley, Department of Civil & Environmental Engineering, Berkeley, CA, United States
Global distribution of secondary organic aerosol particle phase state (146089)
Manabu Shiraiwa1, Ying Li2, Alexandra Tsimpidi3, Vlassis Karydis4, Thomas Berkemeier5, Spyros N Pandis6, Johannes Lelieveld3, Thomas Koop7 and Ulrich Pöschl5, (1)University of California Irvine, Department of Chemistry, Irvine, CA, United States, (2)Institute of Atmospheric Physics, CAS, Beijing, United States, (3)Max Planck Institute for Chemistry, Mainz, Germany, (4)Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research, Jülich, Germany, (5)Max Planck Institute for Chemistry, Multiphase Chemistry Department, Mainz, Germany, (6)Carnegie Mellon University, Pittsburgh, United States, (7)Bielefeld University, Bielefeld, Germany
Wet Deposition Flux of Reactive Organic Carbon (198078)
Sarah Safieddine, Massachusetts Institute of Technology, Cambridge, MA, United States and Colette L Heald, Massachusetts Institute of Technology, Civil and Environmental Engineering, Cambridge, United States
Forest Emissions and Uptake of VOCs across the Mass Spectrum: Canopy Profiling by high-resolution PTR-QiTOF during PROPHET- AMOS 2016 (192816)
Hariprasad Dilip Alwe, University of Minnesota Twin Cities, St Paul, MN, United States and Dylan B Millet, University of Minnesota, Department of Soil, Water, and Climate, Saint Paul, United States
High Upward Fluxes of Formic Acid from a Boreal Forest Canopy (191757)
Siegfried Schobesberger1, Felipe Lopez-Hilfiker2, Ditte Taipale3,4, Dylan B Millet5, Emma D'Ambro6, Ivan Mammarella7, Putian Zhou8, Glenn Wolfe9, Ben H. Lee10, Michael Boy7 and Joel A Thornton11, (1)University of Washington Seattle Campus, Department of Atmospheric Sciences, Seattle, WA, United States, (2)Tofwerk, Thun, Switzerland, (3)University of Helsinki, Helsinki, Finland, (4)Estonian University of Life Sciences, Tartu, Estonia, (5)University of Minnesota, Department of Soil, Water, and Climate, Saint Paul, United States, (6)Univ Washington - Seattle, Seattle, WA, United States, (7)University of Helsinki, Department of Physics, Helsinki, Finland, (8)University of Helsinki, Institute for Atmospheric and Earth Systems Research/Physics, Helsinki, Finland, (9)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (10)University of Washington Seattle Campus, Department of Atmospheric Sciences, Seattle, United States, (11)University of Washington, Department of Atmospheric and Climate Science, Seattle, United States

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