Abstract
A spectral analysis of simultaneous diurnal variations in the E z component of the quasi-static electric field in the near-Earth atmosphere, VLF radio noise, and the horizontal component of the geomagnetic field, observed at Kamchatka in September 1999, has been performed. These geophysical parameters are indirectly used to study wave processes in the near-Earth atmosphere and in the ionospheric D and dynamo regions within the band of periods of internal gravity waves (T = 0.5−3.5 h). The correlation method in the frequency region is used to analyze the interrelation between the wave processes in these atmospheric regions. The power cross-spectra of various pairs of geophysical parameters have been studied depending on meteorological, seismic, and geomagnetic activities. It is shown that the oscillations in the power spectra in the T ∼ 1–1.5 h band of periods are caused by the sources of internal gravity waves in the near-Earth atmosphere and by the remote sources above the dynamo region of the ionosphere within the T ∼ 1.5–3 h band of periods.
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Original Russian Text © G.A. Mikhailova, Yu.M. Mikhailov, O.V. Kapustina, G.I. Druzhin, S.E. Smirnov, 2008, published in Geomagnetizm i Aeronomiya, 2008, Vol. 48, No. 2, pp. 261–269.
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Mikhailova, G.A., Mikhailov, Y.M., Kapustina, O.V. et al. Propagation of internal gravity waves to the altitudes of the ionospheric D and dynamo regions in the seismic region (Kamchatka): Preliminary results. Geomagn. Aeron. 48, 251–259 (2008). https://doi.org/10.1134/S0016793208020151
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DOI: https://doi.org/10.1134/S0016793208020151