2003-12-07 Siberian Biomass Burning Plumes Across the Pacific: Impact on Surface Air Quality in the Pacific Northwest
1. Siberian Biomass Burning Plumes Across the Pacific: Impact on Surface Air Quality in the Pacific Northwest Dan Jaffe, Peter Weiss-Penzias, J.B. Dennison, Isaac Bertschi and Doug Westphal Acknowledgements: Lyatt Jaegl é, UW Paul Novelli, NOAA-CMDL Roxanne Vingarzan, Environment Canada Hiroshi Tanimoto, NIES-Japan Funding: NSF and NOAA
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3. Summer 2003 had substantial Siberian fires, larger then 1987, 1998 or 2002 NAAPS Model Forecast for June 2, 2003 Vertical profile
4. June 2 nd , vertical profile Red line shows summer median NAAPS model and Hysplit back trajectories confirm the Siberian source.
5. GEOS-CHEM global model simulation June, July, August 2003 enhancement over climatological values 2003 emissions from the Siberian fires were much larger then climatological: 61 tg for CO 0.7 tgN for NOx CO enhancement: 15-35 ppbv O 3 enhancement: 2-6 ppbv Courtesy of Lyatt Jaeglé, UW CO O 3
![Trans-Pacific transport of pollutants is well documented in spring, with occasional occurrences of O 3 to ~90 ppbv. See for example: Jaffe D. ,McKendry I., Anderson T., and Price H. Six 'new' episodes of trans-Pacific transport of air pollutants. Atmos. Envir. 37, 391-404, 2003. What about other seasons? Goals for Summer 2003 campaign: ,[object Object],[object Object],[object Object],[object Object]](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)