Abstract
BROWN1 has recently presented observations of those ionospheric absorption events observed at Kiruna which fluctuate over periods of several minutes, and from it has concluded that the fluctuations are consistent with modulation of the electron precipitation by hydromagnetic waves. However, no detailed mechanism for this interaction has yet been proposed. The purpose of this communication is to present a complementary feature which any theory must take into account: namely, the phase relation between these fluctuations in magnetically conjugate regions.
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References
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HARGREAVES, J., CHIVERS, H. Fluctuations in Ionospheric Absorption Events at Conjugate Stations. Nature 203, 963–964 (1964). https://doi.org/10.1038/203963a0
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DOI: https://doi.org/10.1038/203963a0
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