Abstract
IN a recent Geophysical Discussion at the Royal Astronomical Society,1 I suggested that there is evidence of a close connexion between the mechanisms of ionisation of the Kennelly-Heaviside and Appleton regions of the ionosphere. The evidence depends on coincidences in the annual variations of received long and short wave signals.
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References
The Observatory, March 1932, p. 80.
Radio Research Board, Report for the period ended March 31, 1929, p. 34.
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WATSON WATT, R. Winter in the Ionosphere. Nature 129, 761–762 (1932). https://doi.org/10.1038/129761c0
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DOI: https://doi.org/10.1038/129761c0
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