Appleton layer | engleski leksikon

1. Appleton layer

imenica

The highest region of the ionosphere (from 90 to 600 miles up) that contains the highest concentration of free electrons and is most useful for long-range radio transmission; Also called: F layer, F region.
Band containing ionized gases in the Earth's upper atmosphere, above the E layer (formerly the Kennelly–Heaviside layer). It can act as a reflector of radio signals, although its ionic composition varies with the sunspot cycle. It is named for the English physicist Edward Appleton.

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