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Welcome to the BEE-Line Software Forums. 

In an effort to provide better, more timely support to our users, we'd like to introduce you to our new user forums.  If you have a question or comment about one of our products, please use the support forum specific to that product below.  Alternatively, you can use the search function to search our FAQs and other posts for related topics.

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  BEE-Line Software Forums  BEEST (AerMod, ...  BEEST FAQ  Base datum selection in AERMAP
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New Post 6/15/2009 9:09 AM
  dshnayder
35 posts
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Base datum selection in AERMAP 

Question: Which base datum option should I select on the AerMap Options screen when running the AERMAP model?

Answer: This depends on the source of elevation data and the region modeled. If the region modeled is outside the United States, select the "None (0)" option. If the region modeled is inside the United States, select "NAD83 (4)" when using NED files and either "NAD83 (4)" or "NAD27 (1)" when using DEM files.

 
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