Electric Conductivity of the Ionospheric D-Region

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Abstract

RECENTLY, Cowling and Borger1 have put forward theoretical reasons why the electric conductivity of the ionospheric D-region may be considerably less than that of the combined EF-regions. On the further postulate that tidal motions increase with height in the ionosphere, they conclude that a recent deduction2 concerning the origin of the solar and lunar magnetic variations is improbable.

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References

  1. 1

    Cowling and Borger, Nature, 161, 515 (1948).

  2. 2

    Martyn, Nature, 160, 535 (1947).

  3. 3

    Martyn, Proc. Roy. Soc. (in the press).

  4. 4

    Martyn, Proc. Roy. Soc. (in the press).

  5. 5

    McNish, Terr. Mag. and Atmos. Elect., 42, 109 (1937).

  6. 6

    Cowling, Mon. Not. Roy. Ast. Soc., 93, 90 (1933).

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MARTYN, D. Electric Conductivity of the Ionospheric D-Region. Nature 162, 142–143 (1948) doi:10.1038/162142a0

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