Session 12B Quantification and Attribution of Trends in Tropospheric Ozone. Part I

Thursday, 16 January 2020: 8:30 AM-9:30 AM
207 (Boston Convention and Exhibition Center)
Host: 22nd Conference on Atmospheric Chemistry
Cochairs:
Jessica Neu, JPL, Pasadena, CA and John Worden, Jet Propulsion Laboratory/California Institute of Technology, Pasadena, CA

Observations indicate that the magnitude and spatial distribution of ozone pre-cursor emissions have changed substantially across the globe in recent decades. However, the impacts of these changes on surface and tropospheric and ozone are not well known, and there are substantial differences in decadal-scale trends in ozone from in situ, ozone-sonde, and satellite measurements. Understanding how tropospheric ozone has responded to emissions changes is critical for quantifying the role of economic trends and regulatory policies on air quality and, in turn, their effects on human health and ecosystems. This session solicits presentations that discuss state-of-the-science approaches for quantifying changes in global ozone precursor emissions and in surface and tropospheric ozone, using both top-down and bottom-up approaches, and for understanding the relationships between them. We also solicit presentations on how changes in air quality over the past few decades have affected human and ecosystem health.

Papers:
9:00 AM
12B.2
Ozone Suppression in China Under High PM2.5 Conditions: A Two-Pollutant Control Strategy
Ke Li, Harvard Univ., Cambridge, MA; and D. J. Jacob, H. Liao, J. Zhu, L. Shen, V. Shah, K. Bates, and Q. Zhang
- Indicates paper has been withdrawn from meeting
- Indicates an Award Winner