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Exosphere vs Ionopause - What's the difference?

exosphere | ionopause |

As nouns the difference between exosphere and ionopause

is that exosphere is exosphere (layer of the earth's atmosphere) while ionopause is the boundary layer of the ionosphere, where it meets the mesosphere or exosphere.

exosphere

English

(wikipedia exosphere)

Noun

(en noun)
  • the uppermost layer of a planet's atmosphere
  • an extremely thin atmosphere, as on Saturn's moon Dione
  • * "Scientists weren't even sure Dione would be big enough to hang on to an exosphere " ('Cassini Detects Hint of Fresh Air at Dione', Cassini Solstice Mission, JPL, Mar. 02, 2012)

    • ionopause

    English

    Noun

    (en noun)
  • The boundary layer of the ionosphere, where it meets the mesosphere or exosphere.