A41K-0232
Validation of Point Source Emissions of SO2 Using Aircraft Data
Thursday, 17 December 2015
Poster Hall (Moscone South)
Marc Nicholas Fiddler1, Jaime Ross Green2, Solomon Bililign2, Erin McDuffie3, Dorothy L Fibiger4, Steven S Brown3, Lyatt Jaegle5, Andrew John Weinheimer6, Joel A Thornton7, Teresa Lynn Campos6, Viral Shah8, Felipe Lopez-Hilfiker8, Ben H. Lee8, Jessica Haskins9, Tamara Sparks10, Carlena J Ebben10, Paul J Wooldridge11, Ronald C Cohen10, Patrick R Veres3, Jack E Dibb12, Jason Clay Schroder13, Pedro Campuzano-Jost13,14, Douglas A Day15, Jose L Jimenez16, Amy Sullivan17, Hongyu Guo18, Rodney J Weber19, J. Brian Leen20, Joshua P DiGangi21 and Glenn M Wolfe22, (1)North Carolina A & T State University, NOAA-ISET Center, Greensboro, NC, United States, (2)North Carolina A & T State University, Physics, Greensboro, NC, United States, (3)NOAA Boulder, Boulder, CO, United States, (4)National Science Foundation, Atmospheric and Geospace Sciences Postdoctoral Fellow, Arlington, VA, United States, (5)Univ Washington, Seattle, WA, United States, (6)National Center for Atmospheric Research, Boulder, CO, United States, (7)Univ Washington - Seattle, Seattle, WA, United States, (8)University of Washington Seattle Campus, Seattle, WA, United States, (9)University of Washington Seattle Campus, Atmospheric Sciences, Seattle, WA, United States, (10)University of California Berkeley, Berkeley, CA, United States, (11)University of California, Dept. of Chemistry, Berkeley, CA, United States, (12)University of New Hampshire Main Campus, Durham, NH, United States, (13)Cooperative Institute for Research in Environmental Sciences, Boulder, CO, United States, (14)University of Colorado at Boulder, Department of Chemistry and Biochemistry, Boulder, CO, United States, (15)CIRES, Boulder, CO, United States, (16)University of Colorado at Boulder, Dept. of Chemistry and Biochemistry, Boulder, CO, United States, (17)Colorado State University, Fort Collins, CO, United States, (18)Georgia Institute of Technology Main Campus, Earth and Atmospheric Sciences, Atlanta, GA, United States, (19)Georgia Institute of Technology Main Campus, Atlanta, GA, United States, (20)Los Gatos Research, Mountain View, CA, United States, (21)NASA Langley Research Center, Hampton, VA, United States, (22)NASA Goddard Space Flight Center, Greenbelt, MD, United States
Abstract:
Emissions inventories of SO2 in the Eastern United States have largely relied on point source measurements from power plants. A comparison will be made between these source measurements and in situ measurements using the TECO 43C SO2 analyzer a CO/CO2 analyzer during an airborne platform aboard the NCAR C-130 plane during wintertime conditions, which was part of a suite of measurements taken during the Wintertime Investigation of Transport, Emission, and Reactivity (WINTER) 2015 field campaign. The data obtained originates from a series of survey night and day flights that occurred from Feb 3 to Mar 13, 2015 over the Eastern coastal region of the United States ranging from New York to Florida. SO2/CO2 mixing ratios will be compared from three sources: power plant emission values (taking into account dispersion), chemical forecast predictions, and aircraft data. During the winter the removal processes for gaseous SO2 are slower, which results in a measurably longer atmospheric lifetime. Loss, emission, and dispersion rates will be discussed.
