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Modeling biomass burnings by coupling a sub-grid scale plume model with Adaptive Grid CMAQ

Modeling biomass burnings by coupling a sub-grid scale plume model with Adaptive Grid CMAQ. Aika Yano Fernando Garcia-Menendez Yongtao Hu M. Talat Odman Gary Achtemeier (USDA Forest Service) D. Scott McRae (NC State) 9 th Annual CMAS Conference 11 October, 2010.

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Modeling biomass burnings by coupling a sub-grid scale plume model with Adaptive Grid CMAQ

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  1. Modeling biomass burnings by coupling a sub-grid scale plume model with Adaptive Grid CMAQ Aika Yano Fernando Garcia-Menendez Yongtao Hu M. Talat Odman Gary Achtemeier (USDA Forest Service) D. Scott McRae (NC State) 9th Annual CMAS Conference 11 October, 2010

  2. sub-grid scale plume model:Daysmoke

  3. Adaptive Grid - CMAQ

  4. AG-CMAQ vsDaysmoke AGD-CMAQ Objective: combine the two models to obtain the most detailed conc. in a grid model

  5. How to combine Daysmoke in AG-CMAQ? Emissions Chemical Coupling Handover d = downwind distance MM5 (WRF) Adaptor CMAQ Daysmoke Ambient concentrations Parcel/Puff/Plume concentrations Particles Parcels mixed in grid cells Meteorology Grid Support? Distributions Grid Grid Grid Concentrations Meteorology Meteorology Particles/CCN

  6. New CMAQ setup

  7. CMAQ_DAYSMOKE: Between VDIFF and COUPLE

  8. Handover

  9. Handover Remain in Daysmoke Emission added to grid concentration

  10. Atlanta Smoke Case Feb. 28 2007 Oconee NF (1542 acres) 5 yr old 10:00 am - 3:00 pm total 5hr Piedmont NWR (1460 acres) 1 yr old 11:00 am - 2:00 pm total 3hr

  11. Atlanta Smoke Case Feb. 28 2007

  12. Measurement Sites

  13. CMAQ vs AGD-CMAQ

  14. Model Comparison

  15. Mean Normalized Error

  16. Summary Inputting PB smoke emissions into grid concentrations can be varied in time and place using Handover method in AG-CMAQ coupled with Daysmoke (AGD-CMAQ) . On average, AGD-CMAQ has less error from the measured concentration than CMAQ and AG-CMAQ AGD-CMAQ seems to pick up the measured concentration peaks better

  17. Future work: changes in grid adaptation Emissions Chemical Coupling Handover d = downwind distance MM5 (WRF) Adaptor CMAQ Daysmoke Ambient concentrations Parcel/Puff/Plume concentrations Parcels Parcels mixed in grid cells Meteorology Grid Support? Distributions Grid Grid Grid Concentrations Meteorology Meteorology Particles/CCN

  18. Using Fourier Transform for grid adaptation

  19. Thank youQuestions/Comments

  20. Mean Normalized Error

  21. Fort McPherson

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