Session 4B The ATom Mission—Part I

Tuesday, 9 January 2018: 8:30 AM-10:00 AM
Room 9 C (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 of this session, 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.

9:00 AM
The Chemical Context of ATom-1: Insights from Satellite Observations and Modeling
S. A. Strode, NASA USRA, Greenbelt, MD; and J. Liu, L. Lait, R. Commane, B. Daube, S. Wofsy, A. Conaty, P. A. Newman, and M. J. Prather
9:15 AM
Influences of Air Masses Sampled by the ATom Mission
Eric A. Ray, CIRES/Univ. of Colorado, Boulder, CO
9:30 AM
Ozone and Related Trace Gases over the Atlantic and Pacific Oceans: Comparison of Results from the ATom Mission and Model Studies
Eric J. Hintsa, NOAA, Boulder, CO; and F. L. Moore, G. S. Dutton, B. D. Hall, A. McClure-Begley, J. D. Nance, J. W. Elkins, C. Thompson, J. Peischl, T. B. Ryerson, J. Liu, S. A. Strode, A. M. Fiore, and L. T. Murray
9:45 AM
Understanding CO in the Most Remote Atmosphere: Direct Emissions and Secondary Chemistry
Roisin Commane, Harvard Univ., Cambridge, MA; and B. Daube, H. Bian, A. M. Fiore, N. J. Blake, D. R. Blake, R. Hornbrook, J. Liu, E. A. Marais, S. A. Montzka, L. T. Murray, J. M. Nicely, P. Novelli, M. Parrington, E. A. Ray, S. A. Strode, and S. C. Wofsy
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