Wiktionary

ionosphere

See also: ionosphère

English

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Etymology

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From iono- +‎ -sphere.

Pronunciation

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  • Audio (UK):(file)

Noun

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ionosphere (plural ionospheres)

  1. The part of the Earth's atmosphere beginning at an altitude of about 50 kilometers (31 miles) and extending outward 500 kilometers (310 miles) or more.
    • 2023 November 15, Prof. Jim Wild, “This train was delayed because of bad weather in space”, in RAIL, number 996, page 30:
      Solar storms drive currents of millions of amps through the electrically conductive upper layer of our atmosphere (known as the ionosphere). These currents, which can fluctuate rapidly, drive powerful magnetic disturbances at the Earth's surface that in turn induce electrical currents in the planet's crust.
  2. The similar region of the atmosphere of another planet.
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Translations

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Further reading

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  NODES
Note 1