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BRAVO Results of CMAQ-MADRID

BRAVO Results of CMAQ-MADRID. Betty Pun, Christian Seigneur & Shiang-Yuh Wu AER, San Ramon Naresh Kumar EPRI, Palo Alto 10 October 2002. CMAQ Modeling Domain. CMAQ Simulations. Two episodes 5-15 October 1999 10-25 August 1999 Simulations Tracers: completed

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BRAVO Results of CMAQ-MADRID

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  1. BRAVO Results of CMAQ-MADRID Betty Pun, Christian Seigneur & Shiang-Yuh Wu AER, San Ramon Naresh Kumar EPRI, Palo Alto 10 October 2002

  2. CMAQ Modeling Domain

  3. CMAQ Simulations • Two episodes • 5-15 October 1999 • 10-25 August 1999 • Simulations • Tracers: completed • Base PM simulations: completed, revised August simulation in progress • Emission sensitivity simulations: in progress

  4. October Episode, 4-km and 12-km Simulations, Time Series Sulfate (mg/m3) at Big Bend

  5. October Episode, 4-km and 12 km Simulations, Regression Analysis Sulfate (mg/m3) at Big Bend 4-km simulation 12-km simulation

  6. October Episode, 12-km SimulationRegression Analysis Sulfate (mg/m3), 39 Sites

  7. Chemical Composition at Big Bend

  8. Sulfate on 11 & 12 October

  9. PM2.5 on 11 & 12 October

  10. O3 on 11 & 12 October

  11. August Episode, 4-km SimulationTime Series Sulfate (mg/m3) at Big Bend Oct 17 18 19 20 21 22 23

  12. August Episode, 4-km SimulationRegression Analysis Sulfate (mg/m3) at Big Bend

  13. CMAQ Performance • First performance evaluation for a regional PM model with a comprehensive database (daily speciated data with good spatial coverage) • Performance for October PM simulation is satisfactory, at least for BBNP • Performance for August PM simulation is not satisfactory; sensitivity to boundary conditions is being investigated using REMSAD results to provide better temporal resolution

  14. Emission Sensitivity Simulations • 100% reduction in SOx emissions from • Mexico • Texas • Other states • 50% reduction in NOx, VOC and CO emissions from • Mexico • Texas • Other states

  15. CMAQ Schedule • Tracer simulation results: Analysis completed in October • Base PM simulations: August simulation revised by late November, performance evaluation drafted by end of November • SOx emission sensitivity simulations for October episode completed by late November • SOx emission sensitivity simulations for August episode completed by mid-January (revised simulation) • NOx/VOC/CO emission sensitivity simulations completed by January (October episode) and February (August episode)

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