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Semelhante a 2008-04-15 EGU Mtg Vienna Exceptional Events
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2008-04-15 EGU Mtg Vienna Exceptional Events
- 1. Integration of Satellite and Surface Observations during Exceptional Air Quality Events R.B. Husar, Washinton University N. Frank, US EPA R. Poroit, State of Vermont J. McHenry, Baron Met. Presented at EGU, Vienna April 17, 2008
- 3. Show that the exceedance is explicitly caused by the exceptional event Exceptional Event The 'exceptional' concentration raises the level above the standard. A valid EE to be flagged. NOT Exceptional Event Controllable sources are sufficient to cause exceedance. Not a 'but for‘, not an EE. NOT Exceptional Event No exceedance, hence, there is no justification for an EE flag. .
- 6. 1. Is there a likely exceedance of NAAQS?
- 7. 2. The event not reasonably controllable/ preventable Transported Pollution Transported African, Asian Dust; Smoke from Mexican fires & Mining dust, Ag. Emissions Natural Events Nat. Disasters.; High Wind Events; Wildland Fires; Stratospheric Ozone; Prescribed Fires Human Activities Chemical Spills; Industrial Accidents; July 4th; Structural Fires; Terrorist Attack Show that the cause is in category of uncontrollable/preventable
- 8. 2. The event not reasonably controllable OMI Aerosol Index OMI NO2 Fire Pixels MODIS Visible
- 10. 3. Evidence: Aerosol Composition Sulfate Organics Sulfate Organics Measured Modeled
- 11. 3. Evidence: OMI NO2 Sweat Water fire in S. Georgia (May 2007)
- 12. 3. Evidence: OMI NO2 Sweat Water fire in S. Georgia (May 2007)
- 13. Friday/Sunday Ratio Biomass Burning Sunday Smoke
- 15. 5. The Exceedance would not Occur, But For the Exceptional Event
- 16. Near-Real-Time Data for May 11, 07 GA Smoke Displayed on DataFed Analysts Console Pane 1,2: MODIS visible satellite images – smoke pattern Pane 3,4: AirNOW PM2.5, Surf. Visibility – PM surface conc. Pane 5,6: AirNOW Ozone, Surf. Wind – Ozone, transport pattern Pane 7,8: OMI satellite Total, Tropospheric NO2 – NO2 column conc. Pane 9,10: OMI satellite Aerosol Index, Fire P-xels – Smoke, Fire Pane 11,12: GOCART, NAAPS Models of smoke – Smoke forecast Console Links May 07, 2007 , May 08, 2007 May 09, 2007 May 10, 2007 May 11, 2007 May 12, 2007 May 13, 2007 May 14, 2007 May 15, 2007 1 10 2 4 5 8 7 6 3 9 12 11
- 17. EE Analysis Wiki
- 18. May 07 Georgia Fires: User-Supplied Qualitative Observations Google and Technorati blog seaches yielded entries on GA Smoke. . Smoke images, were also found searching Flickr and Google Searching and pruning user-contributed Internet content yielded rich, but qualitative description of the May 07 Georgia Smoke Event. Videos of smoke were found on YouTube Visually pruned blogs, videos and images were bookmarked and tagged fore later analysis