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IEVref:705-05-18ID:
Language:enStatus: Standard
Term: reference atmosphere for refraction
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Definition: an atmosphere in which the refractivity is determined by the equation:

N (h) = 315 exp (-0,136 h)

where h is the altitude in kilometres above sea-level

NOTE – Up to a height of 1 km, the reference atmosphere for refraction may in practice be regarded as identical to the standard radio atmosphere.


Publication date:1995-09
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