Frost_OSU_AtmChem_5Feb2008 2pg notes

Frost_OSU_AtmChem_5Feb2008 2pg notes - A Measurements-Based...

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A Measurements-Based Approach to Air Quality Greg Frost Chemical Sciences Division, Earth System Research Laboratory, National Oceanic and Atmospheric Administration, Boulder, CO Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO Gregory.J.Frost@noaa.gov http://www.esrl.noaa.gov/ http: //cires . colorado .edu/ NOAA ESRL and *CIRES/University of Colorado, Boulder Michael Trainer, Si-Wan Kim*, Stuart McKeen*, Eirh-Yu Hsie*, Ken Aikin*, Jeff Peischl*, Tom Ryerson, John Holloway*, Rebecca Washenfelder*, Eric Williams*, Brian Lerner*, Harald Stark*, Roger Jakoubek, Dennis Nicks*, Rich Dissly*, Steve Brown, Bill Dubé*, Joost deGouw*, Carsten Warneke*, Bill Kuster, Jessica Gilman*, Paul Goldan*, Chuck Brock, Owen Cooper*, Gerd Hübler, David Parrish, Andy Neuman*, Jim Roberts, Donna Sueper*, Tara Fortin*, Fred Fehsenfeld*, Wayne Angevine*, Steven Peckham*, Georg Grell*, Arlyn Andrews, Gabrielle Pétron*, Pieter Tans*, Raul Alvarez*, Bob Banta, J–W Bao*, Lisa Darby*, Christoph Senff*, Jim Meagher NOAA National Geophysical Data Center, Boulder D Kowal, J Cartwright, N Auerbach, & T Habermann National Center for Atmospheric Research, Boulder Alan Fried, Bryan Wert*, Frank Flocke, Aaron Swanson*, Steven Donnelly, Sue Schauffler, Christine Wiedinmyer, Andy Weinheimer, Bill Potter, Verity Stroud, Bruce Henry University of Miami, FL Elliot Atlas University of Bremen, Germany Andreas Heckel, Andreas Richter, John Burrows Chalmers Univ of Technology, Göteborg, Sweden Johan Mellqvist, Jerker Samuelsson, Claudia Rivera Georgia Institute of Technology, Atlanta L. Gregory Huey University of Houston, TX Barry Lefer, Monica Patel University of California, Berkeley, CA Robert Harley Acknowledgments Ohio State University, 5 February 2008 Outline NOAA ESRL’s approach to air quality research • Observational understanding of atmospheric processes • Validation of emission inventories • Development of models Necessary for pollution control strategies, AQ management, predictive capabilities Processes of interest in today’s talk • Emissions of ozone precursors (NO x , VOCs, CO) • Daytime ozone formation: how much, how fast? • Mechanisms for products/intermediates: O 3 , HCHO, HO x , … Case studies • Power plants • Houston industrial sources • Motor vehicles, urban areas Focus of Air Quality: Ozone (O 3 ) and Particulate Matter (PM) near Earth’s surface Same chemistry leads to particulate formation… won’t discuss today Not discussed today but very important for AQ: nighttime chemistry, meteorology, atmospheric transport, deposition, cloud/aerosol impacts,…
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Ozone: The Good, The Bad and The Ugly “The Good”: Stratospheric O 3 absorbs most solar UV-B (280-315 nm) radiation, making life on Earth possible. “The Bad”: Increases in tropospheric O 3 , a greenhouse gas, cause a positive radiative forcing (surface T > 0) larger than the negative forcing from stratospheric O 3 depletion.
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Frost_OSU_AtmChem_5Feb2008 2pg notes - A Measurements-Based...

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