AERMOD Modeling System

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

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What is AERMOD System ?

• AERMAP Terrain processor for receptor
  definition
• AERMET Meteorological Data Processor
• AERMOD Full Dispersion Model
• AERSCREEN Screening Model

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AERMAP

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

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Example Terrain Problem
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Example Terrain Problem
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Example Receptor File
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AERMET Tower Data
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AERMET SODAR Data
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AERSURFACE Example
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AERMET Profile
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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

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Further Development

• AERSURFACE release to public this spring
• AERSCREEN release to public this spring
• Debug Debug Debug .............