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Effective earth radius

In radar and radio propagation studies, a value for the radius of the earth that may be used in place of the actual radius to correct for refraction by the atmosphere.

The effective earth radius is a convenient fiction that makes straight the actual curved path of a radio ray in the atmosphere by presenting it relative to an imaginary earth with a radius larger than the radius of the real earth, thus maintaining the relative curvature between earth and radio ray. The effective earth radius Re is approximately

[[File:ams2001glos-Ee10.gif

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  • Part of Speech: noun
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  • Industry/Domain: Weather
  • Category: Meteorology
  • Company: AMS
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