Abstract
USING the well-known radio methods of upper atmospheric exploration, Appleton and Weekes1 showed that the E-layer of the ionosphere is subject to an unexpectedly large lunar tide. The tide was found to be semi-diurnal in character, of the order of 1 km. in amplitude, the maximum heights being reached about ¾ hr. before the lunar transits.
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Appleton, E. V., and Weekes, K., Proc. Roy. Soc., 171, 171 (1939).
Martyn, D. F., Proc. Roy. Soc., 189, 241, 190, 273 (1947).
Appleton, E. V., and Beynon, W. J. G., Proc. Phys. Soc., 52, 518 (1940).
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APPLETON, E., BEYNON, W. Lunar Tidal Oscillations in the Ionosphere. Nature 162, 486 (1948). https://doi.org/10.1038/162486a0
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DOI: https://doi.org/10.1038/162486a0
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