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IEVref:705-06-11ID:
Language:enStatus: Standard
Term: ionosphere
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Definition: that part of the upper atmosphere characterized by the presence of ions and free electrons mainly arising from photo-ionization, the electron density being sufficient to produce significant modification of the propagation of radio waves in certain frequency bands

NOTE – The Earth's ionosphere extends approximately from a height of 50 km to a height of 2000 km.


Publication date:1995-09
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