The D Region of the Ionosphere

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AT KJELLER near Oslo, measurements of ionospheric cross modulation were made in the period March, 1957—May, 1958, by means of the pulse technique introduced by Fejer1. In this communication we shall present some typical results from these observations.

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  1. 1

    Fejer, J. A., J. Atm. Terr. Phys., 7, 322 (1955).

  2. 2

    Gardner, F. F., ibid., 5, 298 (1954).

  3. 3

    Gardner, F. F., and Pawsey, J. L., ibid., 3, 321 (1953).

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BJELLAND, B., HOLT, O., LANDMARK, B. et al. The D Region of the Ionosphere. Nature 184, 973–974 (1959) doi:10.1038/184973a0

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