Power Spectra of Thermal Tidal and Planetary Waves in the near Earth Atmosphere and in the Ionosphere D Region at Kamchatka

Mikhailova G. A.1, Mikhailov Yu. M.1, Kapustina O. V.1, Druzhin G. I.2, Smirnov S. E.3
  1. Institute of Terrestrial Magnetism, Ionosphere, and Radiowave Propagation, Russian Academy of Sciences,Troitsk, Moscow oblast, e-mail: yumikh@izmiran.ru
  2. Institute of Cosmophysical Research and Radiowave Propagation, Far East Division, Russian Academy of Sciences, v. Paratunka, Kamchatka region, e-mail: drug@ikir.kamchatka.ru
  3. Institute of Cosmophysical Research and Radiowave Propagation, Far East Division, Russian Academy of Sciences, v. Paratunka, Kamchatka region, e-mail: sergey@ikir.kamchatka.ru

Spectral analysis of the diurnal variations in the quasistatic electric field in the near_Earth atmosphere
and VLF atmospheric radio noise at a frequency of 5.3 kHz, simultaneously observed in September–October
1999 at Paratunka observatory of the Institute of Cosmophysical Research and Radiowave Propagation, has
been performed. The variations in the intensities of the spectral power density and the period durations of
the variations in the T ∼ 8–24 h band and higher as functions of geomagnetic and seismic activities have been
studied.