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单词 appleton layer
释义

Appleton layer


Appleton layer

n (Physical Geography) the F region of the ionosphere [C20: named after Sir Edward Appleton]
Thesaurus
Noun1.Appleton layer - the highest region of the ionosphere (from 90 to 600 miles up) which contains the highest concentration of free electrons and is most useful for long-range radio transmissionF layer, F regionionosphere - the outer region of the Earth's atmosphere; contains a high concentration of free electrons

Appleton layer


Appleton layer

[′ap·əl·tən ‚lā·ər] (geophysics) F2 layer

Appleton layer

Appleton layerThe F2 layer of the ionosphere, which is located at an approximate height of 110 to 210 miles (180–350 km). The height of this layer varies in summers and winters as well as during the day and the night. It affects daytime propagation and reflects waves from about 3 MHz to above 30 MHz.

Appleton layer


Related to Appleton layer: F layer, Sir Edward Appleton
  • noun

Synonyms for Appleton layer

noun the highest region of the ionosphere (from 90 to 600 miles up) which contains the highest concentration of free electrons and is most useful for long-range radio transmission

Synonyms

  • F layer
  • F region

Related Words

  • ionosphere
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更新时间:2025/1/31 14:22:28