971 Global Seasonal Distributions of HCN and Acetonitrile

Wednesday, 9 January 2019
Hall 4 (Phoenix Convention Center - West and North Buildings)
Rebecca S. Hornbrook, NCAR, Boulder, CO; and E. C. Asher, A. J. Hills, J. D. Crounse, M. J. Kim, A. P. Teng, P. O. Wennberg, B. Daube, R. Commane, S. C. Wofsy, K. McKain, C. Sweeney, E. A. Ray, S. Tilmes, F. Lacey, L. K. Emmons, J. F. Lamarque, and E. C. Apel

Handout (2.3 MB)

NASA’s Earth Venture suborbital (EVS-2) Atmospheric Tomography (ATom) dataset provides a unique opportunity to investigate the global distributions of the biomass burning (BB) tracers HCN and CH3CN during four different seasons spanning from 2016 through 2018. We will use the NCAR Trace Organic Gas Analyzer (TOGA) CH3CN and HCN measurements and the California Institute of Technology chemical ionization mass spectrometer (CIMS) HCN measurements together with CO measurements from the NOAA Picarro and the Harvard QCLS to categorize the seasonal latitudinal and longitudinal distributions of these important BB tracers. We will compare the measurements to the Community Atmosphere Model with Chemistry (CAM-chem) global model using Fire INventory from NCAR (FINN) and Quick Fire Emissions Dataset (QFED) BB emissions. We will also examine the distributions of these fairly non-reactive species into the lower stratosphere.
- Indicates paper has been withdrawn from meeting
- Indicates an Award Winner