Ionization layer & its characteristics

Q.  Which ionization layer exists during day time & usually vanishes at night due to highest recombination rate?
- Published on 01 Oct 15

a. D-region
b. Normal E-region
c. Sporadic E-region
d. Appleton region

ANSWER: D-region

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    Discussion

  • krishna   -Posted on 16 Oct 15
    At night the F layer is the only layer of significant ionization present, while the ionization in the E and D layers is extremely low. During the day, the D and E layers become much more heavily ionized, as does the F layer, which develops an additional, weaker region of ionisation known as the F1 layer. The F2 layer persists by day and night and is the region mainly responsible for the refraction of radio waves.

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