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AERMOD Modeling System

AERMOD Modeling System. Photo: Ralph Turcotte. presentation by:. Larry L. Simmons. May 23, 2006. Implementation Schedule. Why AERMOD ?. AERMOD implements a sophisticated terrain impact solution that eliminates the need for simple, intermediate and complex terrain receptor post-processing

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AERMOD Modeling System

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  1. AERMOD Modeling System Photo: Ralph Turcotte presentation by: Larry L. Simmons May 23, 2006

  2. ImplementationSchedule

  3. Why AERMOD ? • AERMOD implements a sophisticated terrain impact solution that eliminates the need for simple, intermediate and complex terrain receptor post-processing • AERMOD implements the PRIME building downwash procedure as its default downwash configuration

  4. What is AERMOD System ? • AERMAP – Terrain processor for receptor definition • AERMET – Meteorological Data Processor • AERMOD – Full Dispersion Model • AERSCREEN – Screening Model

  5. AERMAP • Utilizes USGS 7.5 Minute DEM files • Calculates an elevation for each receptor • Calculates a terrain streamline function for each receptor

  6. Example TerrainProblem

  7. Example Terrain Problem

  8. Example Receptor File

  9. AERMET – Tower Data

  10. AERMET – SODAR Data

  11. AERSURFACE – Example

  12. AERMET – Profile

  13. My Experience with AERMOD • Reduces Short - Term Property Line / Fence Line impacts from 0 to 30 percent • Increases Long – Term Property Line / Fence Line impacts from 0 to 15 percent • Reduces elevated terrain receptor impacts significantly

  14. Further Development • AERSURFACE release to public this spring • AERSCREEN release to public this spring • Debug – Debug – Debug .............

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