Session 14 Atmospheric Convection: Observing Composition and Pollution Transport -Part II

Wednesday, 25 January 2017: 4:00 PM-5:30 PM
4C-3 (Washington State Convention Center )
Host: 19th Conference on Atmospheric Chemistry
Hui Su, JPL, California Institute of Technology, Pasadena, CA and Bryan Duncan, NASA/GSFC, Greenbelt, MD

Atmospheric convection and its impacts on chemical tracer distribution and transport present a significant challenge to modeling of both climate and atmospheric composition. The global and regional impacts of convection on clouds, water vapor and trace gases are large and poorly quantified especially in the upper troposphere, leading to significant uncertainties in radiative forcing and in the impact on global air quality. The goal of this proposed session is to solicit recent global observations from satellite and their applications for improving model simulations of convective transport and associated atmospheric composition. Presentations are particularly encouraged with an assessment of the suitability of current observations and recommendations for stronger ones to constrain pollution vertical and long-range transport.

4:00 PM
4:15 PM
The Impact of a New Treatment of Parameterized Convection on Atmospheric Chemistry Associated with Measurements Made During the Two Column Aerosol Project (TCAP)
Jerome D. Fast, PNNL, Richland, WA; and L. K. Berg, M. Shrivastava, R. Easter, R. Zaveri, Y. Liu, and R. A. Ferrare

4:30 PM
WRF-Chem Simulations of Lightning-NOx Production and Trace Gas Transport in Oklahoma and Colorado Thunderstorms Observed during DC3
Kristin A. Cummings, Univ. of Maryland, College Park, MD; and K. E. Pickering, M. C. Barth, M. M. Bela, Y. Li, D. J. Allen, E. Bruning, V. C. Chmielewski, D. R. MacGorman, S. A. Rutledge, B. Basarab, B. R. Fuchs, T. Davis, A. Weinheimer, I. Pollack, T. B. Ryerson, F. Flocke, T. Campos, G. S. Diskin, L. Carey, R. M. Mecikalski, C. Ziegler, E. R. Mansell, M. Biggerstaff, D. P. Betten, E. DiGangi, R. Doherty, and D. Finney
4:45 PM
Constraints From Airborne 210Pb Observations on Aerosol Scavenging and Lifetime in a Global Chemical Transport Model
Bo Zhang, National Institute of Aerospace, Hampton, VA; and H. Liu, J. H. Crawford, T. D. Fairlie, G. Chen, J. E. Dibb, V. Shah, M. Sulprizio, and B. Yantosca
5:00 PM
Entrainment Rates Associated with Deep Convection Estimated by Aura and CloudSat Observations
Lei Huang, Univ. of California, Los Angeles, Pasadena, CA; and H. Su, J. Jiang, M. Luo, and Z. J. Luo
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