A42A:
Atmospheric Oxidation Capacity Constraints: Laboratory Investigations, Field and Remote Sensing Observations, and Modeling Studies III

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Session ID#: 16105

Session Description:
This session focuses on the investigation of atmospheric oxidation processes of VOCs, initiated by various oxidizing agents, including the 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 feedbacks on climate. Modeling studies investigating the impacts of non-linear chemistry on the formation of radiatively active gasses and climate are particularly encouraged.
Primary Convener:  Yasin F Elshorbany, University of South Florida, School of Geosciences, Tampa, United States
Conveners:  Yasin F Elshorbany, University of South Florida, School of Geosciences, Tampa, United States, Thomas F Hanisco, NASA Goddard Space Flight Center, Greenbelt, MD, United States and Philip S Stevens, Indiana University, O'Neill School of Public and Environmental Affairs, Bloomington, United States
Chairs:  Yasin F Elshorbany, University of South Florida, School of Geosciences, Tampa, United States, Philip S Stevens, Indiana University, O'Neill School of Public and Environmental Affairs, Bloomington, United States and Thomas F Hanisco, NASA Goddard Space Flight Center, Greenbelt, MD, United States
OSPA Liaison:  Julie M Nicely, NASA Goddard Space Flight Center, Greenbelt, United States
Index Terms:

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]
3305 Climate change and variability [ATMOSPHERIC PROCESSES]

Abstracts Submitted to this Session:

Dominance of atypical oxidant sources in the polluted wintertime boundary layer: insights from the WINTER C-130 aircraft campaign (Invited) (167461)
Joel A Thornton1, Felipe Lopez-Hilfiker2, Ben H. Lee3, Glenn M Wolfe4, Joshua P DiGangi5, Jessica Haskins6, Andrew John Weinheimer7, Teresa Lynn Campos8, Dorothy L Fibiger9, Erin E. McDuffie10, Patrick R Veres11, Steven S Brown12, Tamara Sparks13, Carlena J Ebben13, Paul J Wooldridge13, Ronald C Cohen14, Jack E Dibb15, Jason Clay Schroder16, Pedro Campuzano-Jost17, Doug A Day18, Jose L Jimenez19, Amy Sullivan20, Hongyu Guo21, Rodney J Weber22, Jaime Ross Green23, Marc Nicholas Fiddler24, Solomon Bililign25, Viral Shah26 and Lyatt Jaegle1, (1)University of Washington, Department of Atmospheric and Climate Science, Seattle, United States, (2)Tofwerk, Thun, Switzerland, (3)University of Washington Seattle Campus, Department of Atmospheric Sciences, Seattle, United States, (4)UMBC/NASA Goddard, Greenbelt, MD, United States, (5)NASA Langley Research Center, Hampton, VA, United States, (6)University of Washington Seattle, Atmospheric Sciences, Seattle, WA, UNITED STATES, (7)National Center for Atmospheric Research, Atmospheric Chemistry Observations and Modeling Laboratory, Boulder, United States, (8)National Center for Atmospheric Research, Atmospheric Chemistry Observations & Modeling Laboratory, Boulder, CO, United States, (9)NOAA, CSD, Boulder, CO, United States, (10)US Environmental Protection Agency - Washington DC, Washington, United States, (11)NOAA Boulder, Boulder, United States, (12)NOAA, Earth System Research Laboratory, Boulder, CO, United States, (13)University of California Berkeley, Berkeley, CA, United States, (14)University of California, Berkeley, Earth and Planetary Science, Berkeley, United States, (15)University of New Hampshire Main Campus, Institute for the Study of Earth, Ocean, and Space, Durham, NH, United States, (16)University of Colorado at Boulder, Department of Chemistry, Boulder, CO, United States, (17)University of Colorado Boulder, Department of Chemistry and Cooperative Institute for Research in Environmental Sciences, Boulder, United States, (18)CIRES, Boulder, CO, United States, (19)University of Colorado at Boulder, Dept. of Chemistry and Biochemistry, Boulder, CO, United States, (20)Colorado State University, Department of Atmospheric Science, Fort Collins, United States, (21)Georgia Institute of Technology, Earth and Atmospheric Sciences, Atlanta, GA, United States, (22)Georgia Institute of Technology Main Campus, Earth and Atmospheric Sciences, Atlanta, GA, United States, (23)North Carolina A & T State University, Applied Science and Technology, Greensboro, United States, (24)North Carolina A&T State University, Chemistry, ISET Center, Greensboro, United States, (25)North Carolina A & T State University, Physics, Greensboro, United States, (26)Harvard University, Cambridge, United States
Observational Constraints on the Tropospheric Chlorine Budget from the WINTER 2015 Aircraft Campaign (165482)
Jessica Haskins1, Joel A Thornton2, Lyatt Jaegle2, Felipe Lopez-Hilfiker3, Ben H. Lee4, Viral Shah5, Steven S Brown6, Jose L Jimenez7, Rodney J Weber8, Pedro Campuzano-Jost9, Doug A Day10, Jack E Dibb11, Marc Nicholas Fiddler12, John Holloway13, Amy Sullivan14, Patrick R Veres15 and Jason Clay Schroder16, (1)University of Washington Seattle, Atmospheric Sciences, Seattle, WA, UNITED STATES, (2)University of Washington, Department of Atmospheric and Climate Science, Seattle, United States, (3)Tofwerk, Thun, Switzerland, (4)University of Washington Seattle Campus, Department of Atmospheric Sciences, Seattle, United States, (5)Harvard University, Cambridge, United States, (6)NOAA, Earth System Research Laboratory, Boulder, CO, United States, (7)University of Colorado at Boulder, Dept. of Chemistry and Biochemistry, Boulder, CO, United States, (8)Georgia Institute of Technology Main Campus, Earth and Atmospheric Sciences, Atlanta, GA, United States, (9)University of Colorado Boulder, Department of Chemistry and Cooperative Institute for Research in Environmental Sciences, Boulder, United States, (10)CIRES, Boulder, CO, United States, (11)University of New Hampshire Main Campus, Institute for the Study of Earth, Ocean, and Space, Durham, NH, United States, (12)North Carolina A&T State University, Chemistry, ISET Center, Greensboro, United States, (13)Aerodyne Research Inc., Billerica, MA, United States, (14)Colorado State University, Department of Atmospheric Science, Fort Collins, United States, (15)NOAA Boulder, Boulder, United States, (16)University of Colorado at Boulder, Department of Chemistry, Boulder, CO, United States
The Wintertime Fate of N2O5: Observations and Box Model Analysis for the 2015 WINTER Aircraft Campaign (136566)
Erin E. McDuffie1, Dorothy L Fibiger2, William Dubé3, Felipe Lopez-Hilfiker4, Joel A Thornton5, Viral Shah6, Lyatt Jaegle5, Hongyu Guo7, Rodney J Weber8, Pedro Campuzano-Jost9, Jason Clay Schroder10, Jose L Jimenez11 and Steven S Brown12, (1)US Environmental Protection Agency - Washington DC, Washington, United States, (2)NOAA, CSD, Boulder, CO, United States, (3)CIRES, Boulder, CO, United States, (4)Tofwerk, Thun, Switzerland, (5)University of Washington, Department of Atmospheric and Climate Science, Seattle, United States, (6)Harvard University, Cambridge, United States, (7)Georgia Institute of Technology, Earth and Atmospheric Sciences, Atlanta, GA, United States, (8)Georgia Institute of Technology Main Campus, Earth and Atmospheric Sciences, Atlanta, GA, United States, (9)University of Colorado Boulder, Department of Chemistry and Cooperative Institute for Research in Environmental Sciences, Boulder, United States, (10)University of Colorado at Boulder, Department of Chemistry, Boulder, CO, United States, (11)University of Colorado at Boulder, Dept. of Chemistry and Biochemistry, Boulder, CO, United States, (12)NOAA, Earth System Research Laboratory, Boulder, CO, United States
A satellite view of the sources and interannual variability of free tropospheric PAN over the eastern Pacific Ocean during summer and its timeline for trend detection (141617)
Liye Zhu1, Emily V Fischer2, Vivienne Payne3, Thomas W Walker4, John R Worden5, Zhe Jiang6 and Susan Sund Kulawik3, (1)University of Colorado at Boulder, Boulder, CO, United States, (2)Colorado State University, Atmospheric Science, Fort Collins, CO, United States, (3)NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States, (4)California Institute of Technology, Pasadena, CA, United States, (5)Jet Propulsion Laboratory, Pasadena, CA, United States, (6)University Corporation for Atmospheric Research, Boulder, CO, United States
Impact of aerosol microphysics on cloud optical properties and implications to atmospheric oxidation capacity (195491)
Gan Luo, University at Albany State University of New York, Albany, NY, United States and Fangqun Yu, University at Albany State University of New York, Atmospheric Sciences Research Center, Albany, NY, United States
The Vertical Profile of the Nitrate Radical in the Urban Atmosphere constrained by Lunar and Long-Path DOAS Observations (Invited) (184110)
Robert McLaren1, William Fujs1, Kevin Nikelski2 and Patryk R Wojtal1, (1)York University, Chemistry, Toronto, ON, Canada, (2)York University, Toronto, ON, Canada
Plume Evolution and NOx Lifetime in the Denver Metropolitan Area (161807)
Carlena J Ebben1, Tamara Sparks1, Paul J Wooldridge1 and Ronald C Cohen2, (1)University of California Berkeley, Berkeley, CA, United States, (2)University of California, Berkeley, Earth and Planetary Science, Berkeley, United States
Impact of iodine chemistry on coastal ozone levels at the Gulf of Mexico (142763)
Katie Tuite1, Jochen Stutz2, Nathaniel Brockway2, Santo F Colosimo3, Jui Yi Tsai1, Katja Grossmann2, Sergio Luiz Alvarez4, James H Flynn III5, Matthew Erickson6, Vanessa Caicedo7, Robert J Griffin8, Henry William Wallace IV9, Ben Schulze9, Rebecca J Sheesley10, Sascha Usenko11, Greg Yarwood12 and Uarporn Nopmongcol13, (1)University of California Los Angeles, Los Angeles, CA, 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, Atmospheric and Oceanic Sciences, Los Angeles, United States, (4)University of Houston, Houston, United States, (5)University of Houston, Earth & Atmospheric Sciences, Houston, United States, (6)University of Houston, Houston, TX, United States, (7)CU CIRES / NOAA GML, Boulder, United States, (8)Rice University, Department of Civil and Environmental Engineering, Houston, TX, United States, (9)Rice University, Civil and Environmental Engineering, Houston, TX, United States, (10)Baylor University, Environmental Sciences, Waco, TX, United States, (11)Baylor University, Institute of Ecological, Earth, and Environmental Sciences, Waco, TX, United States, (12)Ramboll, Novato, CA, United States, (13)ENVIRON International Corporation Novato, Novato, CA, United States

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