Session 10 The ATom Mission—Part IV

Thursday, 11 January 2018: 8:30 AM-9:30 AM
Room 18CD (ACC) (Austin, Texas)
Host: 20th Conference on Atmospheric Chemistry
Michael J. Prather, NASA USRA, GESTAR, Greenbelt, MD and Steven Wofsy, Harvard Univ., School of Engineering and Applied Sciences - Earth And Planetary Sciences Department, Cambridge, MA

The NASA Atmospheric Tomography (ATom) mission has embarked on a unique global transect of tropospheric chemistry, measuring a full suite of reactive gases and aerosols along curtains through the remote Pacific and Atlantic Ocean basins.  These ocean basins comprise most of the photochemical activity of the troposphere, controlling the global abundances of many species such as methane and tropospheric ozone.  By the time this session begins, three of the four-season deployments will be completed and the datasets from the first two deployments will be publicly available. We invite presentations using ATom data, including in combination with other data, that examine the global scope of tropospheric gases and aerosols, particularly considering the evidence for and impacts of distant pollution sources on the oceanic atmosphere.

8:30 AM
The Behavior of Global Atmospheric Hydroxyl (OH) and Hydroperoxyl (HO2)
William Brune, Pennsylvania State Univ., University Park, PA; and D. O. Miller and A. Thames
8:45 AM
Observational Constraints on a Potential Source of Secondary Methanol
Michelle Kim, California Institute of Technology, Pasadena, CA; and J. Crounse, A. P. Teng, E. Asher, A. Hills, R. Hornbrook, E. C. Apel, A. L. Brosius, D. O. Miller, A. Thames, W. Brune, K. Ullman, S. Hall, J. St. Clair, G. M. Wolfe, T. Hanisco, C. Sweeney, K. McKain, J. Peischl, C. Thompson, T. B. Ryerson, R. Commane, B. C. Daube, S. Wofsy, and P. Wennberg

9:00 AM
Formaldehyde Variability in the Remote Troposphere
G. M. Wolfe, NASA GSFC, Greenbelt, MD; and J. Liao, J. St. Clair, T. Hanisco, W. Brune, D. O. Miller, A. Thames, C. Thompson, T. B. Ryerson, and J. Peischl
9:15 AM
Tracking Oxidation during Transport of Trace Gases in Air from the Northern to the Southern Hemisphere
Stephen A Montzka, NOAA/ESRL/Global Monitoring Division, Boulder, CO; and F. Moore, E. Atlas, D. D. Parrish, B. Miller, C. Sweeney, K. McKain, B. D. Hall, C. Siso, M. Crotwell, E. J. Hintsa, J. W. Elkins, D. R. Blake, B. Barletta, S. Meinardi, T. Claxton, and R. Hossaini

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