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WRAP RMC Windblown Dust Emission Inventory Project Summary

WRAP RMC Windblown Dust Emission Inventory Project Summary. Dust Emission Joint Forum 6 June 2006. PM dust emissions from wind erosion Relies on land use and soil characteristics in order to estimate threshold surface friction velocities and emission rates

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WRAP RMC Windblown Dust Emission Inventory Project Summary

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  1. WRAP RMC Windblown Dust Emission InventoryProject Summary Dust Emission Joint Forum 6 June 2006

  2. PM dust emissions from wind erosion Relies on land use and soil characteristics in order to estimate threshold surface friction velocities and emission rates Special treatment for agricultural lands Current version of model uses updated landuse/landcover (2000 NLAC) Revised PM10/PM2.5 ratios Updated Transport Fractions (TFs) Project Final Report available fromwww.pah.cert.ucr.edu/aqm/308/emissions.shtml or www.wrapair.org/ WRAP Fugitive Windblown Dust (WBD) Emissions Model

  3. Landuse/Landcover 2000 North American Land Cover Database (2000 NALC) Soil Texture STATSGO soils database (from Penn State) Meteorology Penn State/NCAR MM5 model simulations Annual 2002 36-km WRAP modeling domain Fugitive dust transport fractions from EPA (Pace, 2005) Developed at grid-cell level based on 2000 NALC Data Sources

  4. Landuse/Landcover (LULC)

  5. Transport Fractions Soil Texture

  6. LULC Summary

  7. Transport Fractions (Tom Pace, EPA, 6/2005) • Effects of near-source dust removal & deposition • Varies by LULC; Applied at grid-cell level (12-km)

  8. PM10 WB Dust Emission Summary (tpy)2002 Annual 12-km Modeling Results

  9. 2002 Annual 12-km Modeling Results

  10. 2002 Annual PM10 WB Dust Emissions

  11. 2002 Monthly WB PM10 Dust EmissionsWRAP States

  12. Evaluate reasonableness of WBD Model results Compare predicted PM dust emissions near IMPROVE monitors with Observed fine soil and coarse mass Evaluate CMAQ model sensitivity to WB PM Dust emissions Modified CMAQ simulations to track WB Dust emissions separately Review modeling results for fine soil and coarse mass Evaluate CMAQ model performance with and without WB Dust emissions Investigate model performance at IMPROE monitors w/ and w/o WB Dust emissions (time series and scatter plots) Model Performance Evaluation

  13. Saguaro West, AZ, Coarse Mass

  14. Saguaro West, AZ, Soil

  15. Salt Creek, NM, Coarse Mass

  16. Salt Creek, NM, Soil

  17. CMAQ Sensitivity Simulations

  18. Model Performance Evaluation Fine Soil Coarse Mass

  19. Saguaro West, AZ Fine Soil Coarse Mass

  20. Salt Creek, NM Fine Soil Coarse Mass

  21. Badlands, NP Glacier, NP

  22. Grand Canyon, NP San Gabriel

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