Current Research on 3-D Air Quality Modeling: wildfire!

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Current Research on 3-DAir Quality Modeling
wildfire!
Extracted from Presentation of Sept. 29th 2006 to
Institute for Chemical Process and Environmental
Technology NRC Canadaby

• Jack Chen
• Laboratory for Atmospheric Research
• Washington State University

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Short Range Forecast System AIRPACT

• AIRPACT has been providing hourly air quality
  forecasts for the Pacific Northwest since 2000

• O3
• CO
• Primary PM tracers
• Air toxics tracers
• Secondary PM2.5
• ASO4, ANO3, ANH4, SOA
• Wet and dry pollutant deposition
• Visibility parameters

AIRPACT-CALGRID (2000)
AIRPACT-CMAQ (2006)
Forecast Meteorology (MM5)
CALMET ? CALGRID
EPAMCIP ? CMAQ

• State-of-science knowledge in atmospheric
  chemistry and physics
• Multiphase chemistry (gas, aqueous, aerosol) and
  aerosol dynamics
• CMAQ has a wide user community with active
  development and support from the public and EPA

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Short Range Forecast System AIRPACT

• AIRPACT-CALGRID
• 81 x 138 at 4-km
• 13 layers
• AIRPACT-CMAQ
• 95 x 95 at 12-km
• 21 layers
• System runs dailywww.airpact-3.wsu.edu

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Short Range Forecast System AIRPACT
2005 anthropogenic emissions (SMOKE)
WSU Dairy NH3 Emissions Module
Wild and Prescribed Fire Emissions
Updated Biogenic Emission Model (BEIS3)
Dynamic Initial Conditions
Dynamic Boundary Conditions
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Dairy NH3 Emission Module
WA Dairy NH3 (ton/yr) WA Dairy NH3 (ton/yr)
Housing 8,634
Storage 5,441
Application 4,364
Total 18,439
OR Dairy NH3 (ton/yr) OR Dairy NH3 (ton/yr)
Housing 9,469
Storage 5,079
Application 3,420
Total 17,967
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Wild and Prescribed Fire Emission
MODIS Image for Sept 5 2006
Observed Fire Events
BlueSky System at Forest Service
AIRPACT retrieves fire location, fire size, heat
flux, emissions
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Preliminary Evaluation of AIRPACT-CMAQ

• PM2.5 at Pullman during the Columbia Complex Fire
  Event

Observed Pullman PM2.5Aug. 20th Sept. 10th, 2006 Observed Pullman PM2.5Aug. 20th Sept. 10th, 2006 Observed Pullman PM2.5Aug. 20th Sept. 10th, 2006
µg/m3 Hourly 24-hr Avg.
Mean 14 14
Max 70 44
EPA Standard EPA Standard 35
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Preliminary Evaluation of AIRPACT-CMAQ

• PM2.5 at Pullman during the Columbia Complex Fire
  Event