Session: Atmospheric Convection: Observing Composition and Pollution Transport -Part II (97th American Meteorological Society Annual Meeting)

Wednesday, 25 January 2017: 4:00 PM-5:30 PM

4C-3 (Washington State Convention Center )

Host: 19th Conference on Atmospheric Chemistry

Cochairs:

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.

Papers:

4:00 PM

14.1

Convective Transport of Short-Lived Hydrocarbons and Bromocarbons from the Surface to the Upper Troposphere and Lower Stratosphere

Qing Liang, USRA, Greenbelt, MD; and T. Hanisco, S. C. Wofsy, J. V. Pittman, E. Atlas, M. Navarro, S. Schauffler, and D. R. Blake

Recorded Presentation

4:15 PM

14.2

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

14.3

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

Recorded Presentation

4:45 PM

14.4

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

Recorded Presentation

5:00 PM

14.5

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

Recorded Presentation

5:15 PM

14.6

Influence of the Andes on the Vertical Mixing of Ozone Above a Tropical South American Site

Maria Cazorla, Universidad San Francisco de Quito, Quito, Ecuador

Recorded Presentation

Handout (3.2 MB)