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ClearSky Evaluation and Plume Rise Study: Improving Air Quality Monitoring

Explore the ClearSky project's objectives, methodologies, and findings in evaluating CALPUFF plume rise for air quality monitoring. Learn about ensemble efforts, assessment of task 2, and the importance of meteorological data in predicting smoke plumes. Discover how the project aims to enhance regional PM results through re-analysis for ag-burning emissions.

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ClearSky Evaluation and Plume Rise Study: Improving Air Quality Monitoring

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  1. ClearSky: status and near-term objectives Joe Vaughan Charleston Ramos Brian Lamb

  2. Topics ClearSky • Plume Rise Field Studies • Ensemble Effort • Current Efforts • Culture of Use • Task 2 assessment • NASA ROSES

  3. ClearSky Plume Rise Field Study • Objective: Evaluate CALPUFF plume rise • Measure top of plume height • Collect meteorological data • Document burns visually (Photographs) • Methods • Aircraft measurements • Ground-based measurements • CALPUFF reruns

  4. Field Burn Overview • 76 to 122 Acres • Wheat Stubble & Kentucky Bluegrass

  5. Final Results 2 underestimated plume height, slightly 2 - 3 overestimated plume height Newer emission parameters increase plume rise

  6. ClearSky Evaluation • 2003 ClearSky Evaluation (Jain, 2004): • ClearSky is highly sensitive to Wind Speed & Wind Direction • Small differences in wind direction determine whether or not smoke plumes are predicted to affect an air quality monitoring station • How to represent the uncertainty coming from the meteorological conditions? This motivated an Ensemble experiment! Heitkamp found that 12-km ECS was slightly better than 4-km original system. So, what about a 4-km ensemble?

  7. Culture of Use? ‘Most probable’ results?

  8. Current effort: 3-D CALPUFF Windrose graphicsInterested to do more with 1-km ClearSky… ECY Contract Task 2 Assessment:How to get ClearSky ag-burning results into the regional PM results? ClearSky and its use don’t necessarily provide realistic ag-burning emissions, nor PM2.5 results! So we’ve proposed a 2004 burn season re-analysis to build met-forecast driven inference rules for ag-burning emissions for AIRPACT.

  9. NASA ROSES Applied Sciences Program Approach to Integrated System Solutions for A Comprehensive Regional Air-Quality Decision Support System for the Pacific Northwest

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