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110414 extreme dustsmokesulfate
110414 extreme dustsmokesulfate
110414 extreme dustsmokesulfate
110414 extreme dustsmokesulfate
110414 extreme dustsmokesulfate
110414 extreme dustsmokesulfate
110414 extreme dustsmokesulfate
110414 extreme dustsmokesulfate
110414 extreme dustsmokesulfate
110414 extreme dustsmokesulfate
110414 extreme dustsmokesulfate
110414 extreme dustsmokesulfate
110414 extreme dustsmokesulfate
110414 extreme dustsmokesulfate
110414 extreme dustsmokesulfate
110414 extreme dustsmokesulfate
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110414 extreme dustsmokesulfate

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  • Use observations of aerosol eventsIdentify
  • Temp Hum Airmass tracesExample St. Louis Hot humid weather air SE backside of high becayse of geogrphy oldest air , passing over pollluted areas
  • Transcript

    • 1. Proposal OutlineThe Influence of Weather and Climate Events on Dust, Smoke and Sulfate Events R. Husar, PI Response to EPA STAR RFA Extreme Event Impacts on Air Quality and Water Quality with a Changing Global Climate http://epa.gov/ncer/rfa/2011/2011_star_extremeevent.html Apr 10, 2011
    • 2. General Framework Atmospheric Effects on Air Quality:• Emissions (Anthropogenic and Natural)• Dispersion (Horizontal and Vertical)• Kinetics (Chem. Reactions & Removal)• All the above depends on climate Emissions • Anthropogenic • El. Utility (Temp) • Transportation • Industrial Events: • Natural • Dust (T,Prec,Wind) • Smoke (T,Prec,Wind) 1. Continental/Hemispherical • Biogenic (T) Source-Receptor 2. Regional • Dispersion (Vertical and Horizontal) • HiP stagnations (Circ.) • LoP Blockage (Circ) • Loc disp (Wind, MiixH) • Transformations
    • 3. Continental/Hemispherical Scale Events• Continental/Hemispherical Scale Events • Influenced by global emissions, circulation, precipitation • AQ – Climate analysis method fro global..???? • AQ and Climate Relevance: • Demonstrate role global climate • Tipping points for Regulations • Mex Smoke >>> Exceptional Event Rule • Gobi Dust >> Hemispheric Transport Protocol
    • 4. Continental/Hemispheric Dust Events over the USGobi dust in springSahara in summer US-scale fine dust events are mainly Fine Dust Events, 1992-2003 ug/m3 from intercontinental transport
    • 5. Continental/Hemispheric Smoke Events over the US Stuff-Stuff-Stuff-Stuff-• Scenario:Smoke form Mexico causes record PM over the Eastern US.• Goal:Detect smoke emission and predict PM and ozone concentrationSupport air quality management and transportation safety• Impacts:PM and ozone air quality episodes, AQ standard exceedanceTransportation safety risks due to reduced visibility• Timeline: Record Smoke Impact on PM ConcentrationsRoutine satellite monitoring of fire and smokeThe smoke event triggers intensified sensing and analysisThe event is documented for science and management use• Science/Air Quality Information Needs:Quantitative real-time fire & smoke emission monitoringPM, ozone forecast (3-5 days) based on smoke emissions data• Information Technology Needs: Smoke EventReal-time access to routine and ad-hoc data and modelsAnalysis tools: browsing, fusion, data/model integrationDelivery of science-based event summary/forecast to air quality and aviation safety managers and to the public rhusar@me.wustl.edu, stefan@me.wustl.edu
    • 6. Tools for Continental AQ-Climate AnalysisNAAPS-NAAPS-NAAPS-NAAPS-NAAPSNOGAPS-NOGAPS-NOGAPS-NOGAPS-
    • 7. REGIONAL• Regional-Scale Events • Influenced by regional emissions, circulation, precipitation • AQ – Climate analysis method for regional…?? • AQ and Climate Relevance: • Demonstrate role regional emissions, climate, precipitation
    • 8. Tools/Methods for for Regional AQ – Climate Analysis
    • 9. Tools/Methods for Regional AQ-Climate AnalysisPossible Drought Effect on PM Coarse in South Texas • The two dust peeks at Big Bend have different Al/Si ratios • During the year, Al/Si = 0.4 • In July, Al/Si reaches 0.55, closer to the Al/Si of the Sahara dust (0.65-0.7) • The spring peak is identified as as ‘Local Dust’, while the July peak is dominated by Sahara dust.
    • 10. Datasets, Info Sharing, Collaboration..• Other … tangibles and intangibles
    • 11. Satellite Aerosol Optical Thickness Climatology SeaWiFS Satellite, Summer 2000 - 2003 60 Percentile 99 Percentile• Space-Time-Parameter coverage• GISS datasets
    • 12. What’s in it for AQ Management and Policy

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