Air Quality Modeling for SAMI: July 1995 Episode Talat Odman, Ted Russell, Jim Wilkinson, Yueh-Jiun Yang, Jim Boylan, Alberto Mendoza

Modeling Domain and Grid

Results July 11-19, 1995 episode –ozone –particulate matter –wet deposition Same episode with 2010 emissions –ozone Sensitivities –to NOx, VOC and SO2 emissions (2010) in two subdomains Results also posted on our web site: –

O3: July 12, :00

O3: July 13, :00

O3: July 16, :00

O3: July 17, :00

12km/60 ppb cutoff

Ozone Performance - July 13

IMPROVE Monitoring Stations 1. Brigantine (NJ) 2. Dolly Sods/Otter Creek (WV) 3. Great Smoky Mountains (TN) 4. Jefferson/James River Face (VA) 5. Lye Brook (VT) 6. Mammoth Cave (KY) 7. Okefenokee (GA) 8. Cape Romain (SC) 9. Shenandoah (VA) 10. Shining Rock (NC) 11. Sipsy (AL) 12. Upper Buffalo (AR) 13. Washington, D.C.

Fine Sulfate Aerosols

Fine Organic Aerosols

PM 2.5

NADP Monitoring Sites 1. Lilley Cornett Woods (KY) 2. Coweeta (NC) 3. Mt. Mitchell (NC) 4. Walker Branch Watershed (TN) 5. Charlottesville (VA) 6. Horton’s Station (VA) 7. Shenandoah National Park (VA) 8. Babcock State Park (WV) 9. Parsons (WV)

Wet Deposition - July 18, 1995

Performance Summary Ozone performance is good particularly in the region covered by the 12-km grid. PM performance is good at most IMPROVE sites (e.g., Shining Rock and Great Smoky Mt.) in the 12-km grid. –Sulfate was underestimated at Shenandoah. on July 15th. –The model overestimates crustal material. –Ammonium performance will be re-evaluated after correcting ammonia emissions. Acid deposition performance is not very good. –In part, related to our ability to model precipitation

O3: July 12 at 14:00

O3: July 14 at 14:00

O3: July 16 at 14:00

Domain Average O3 Difference ( )

Domain with Sensitivity Regions

Ozone Sensitivity to Point Source NOx of West and South Inner Regions, July 11, 2010 at 14:00

Ozone Sensitivity to Point Source NOx of West and South Inner Regions, July 12, 2010 at 14:00

Ozone Sensitivity to Point Source NOx of West and South Inner Regions, July 13, 2010 at 14:00

Ozone Sensitivity to Point Source NOx of West and South Inner Regions, July 14, 2010 at 14:00

Ozone Sensitivity to Point Source NOx of West and South Inner Regions, July 15, 2010 at 14:00

Ozone Sensitivity to Point Source NOx of West and South Inner Regions, July 16, 2010 at 14:00

Ozone Sensitivity to Point Source NOx of West and South Inner Regions, July 17, 2010 at 14:00

Ozone Sensitivity to Point Source NOx of West and South Inner Regions, July 18, 2010 at 14:00

Ozone Sensitivity to Surface Source NOx of West and South Inner Regions, July 11, 2010 at 14:00

Ozone Sensitivity to Surface Source NOx of West and South Inner Regions, July 12, 2010 at 14:00

Ozone Sensitivity to Surface Source NOx of West and South Inner Regions, July 13, 2010 at 14:00

Ozone Sensitivity to Surface Source NOx of West and South Inner Regions, July 14, 2010 at 14:00

Ozone Sensitivity to Surface Source NOx of West and South Inner Regions, July 15, 2010 at 14:00

Ozone Sensitivity to Surface Source NOx of West and South Inner Regions, July 16, 2010 at 14:00

Ozone Sensitivity to Surface Source NOx of West and South Inner Regions, July 17, 2010 at 14:00

Ozone Sensitivity to Surface Source NOx of West and South Inner Regions, July 18, 2010 at 14:00

Ozone Sensitivity to Total VOC of West and South Inner Regions, July 11, 2010 at 14:00

Ozone Sensitivity to Total VOC of West and South Inner Regions, July 12, 2010 at 14:00

Ozone Sensitivity to Total VOC of West and South Inner Regions, July 13, 2010 at 14:00

Ozone Sensitivity to Total VOC of West and South Inner Regions, July 14, 2010 at 14:00

Ozone Sensitivity to Total VOC of West and South Inner Regions, July 15, 2010 at 14:00

Ozone Sensitivity to Total VOC of West and South Inner Regions, July 16, 2010 at 14:00

Ozone Sensitivity to Total VOC of West and South Inner Regions, July 17, 2010 at 14:00

Ozone Sensitivity to Total VOC of West and South Inner Regions, July 18, 2010 at 14:00