1 / 18

AERMOD Updates

AERMOD Updates. Robert Opiela, Technical Specialist Technical Program Support Section TCEQ, Air Permits Division Austin, Texas April 30, 2008. Introduction. Model Updates Modeling Guidance Updates. Model Updates. AERMET/AERMAP 06341 Mainly bug fixes AERMOD 07026 Mainly bug fixes

caia
Download Presentation

AERMOD Updates

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. AERMOD Updates Robert Opiela, Technical Specialist Technical Program Support Section TCEQ, Air Permits Division Austin, Texas April 30, 2008

  2. Introduction • Model Updates • Modeling Guidance Updates

  3. Model Updates • AERMET/AERMAP • 06341 • Mainly bug fixes • AERMOD • 07026 • Mainly bug fixes • Only works with AERMET 06341 data

  4. Model Guidance Updates • Meteorological Data Inputs • What to do • How to do it • How to document it • Does it make any sense?

  5. Examples of Low Roughness

  6. Examples of Medium Roughness

  7. Examples of High Roughness

  8. Appropriate Roughness • Define Appropriate Modeling Domain • Depends upon sources in project • Low-level dominated, domain is small • High, hot stacks, domain is large • Area that influences the source most

  9. Appropriate Roughness • Qualitative Analysis • Land use is clearly dominant in modeling domain • Minimal explanation necessary

  10. Qualitative Example

  11. Appropriate Roughness • Quantitative Analysis • Data source of values used • Define land use categories • Show ALL calculations • Document ALL selections

  12. Quantitative Example

  13. Use of Urban Option • Questionable Application • Light winds • Clear skies • May not be applicable in sub-tropical conditions

  14. Use of Urban Option • Questionable Application • Uncertain of model implementation • Unclear on use of population data • Selection is Allowed • Provide a strong justification for selection

  15. Use of Terrain Data • Document Data Source • Do Not Interpolate Data • Use value of grid • May supplement if grid resolution not sufficient

  16. Streamlining Review Process • Use Modeling Input Data Templates • Consult with ADMT Staff Early in Process • Document ALL Selections, Assumptions, etc. • Not Following Guidance Causes Delays

  17. Summary • Use Latest Versions of AERMOD System • Follow Guidance on Model Selections • Assist in Streamlining Review Process • Be a Part of the Solution

  18. Questions

More Related