Journal cover Journal topic
Annales Geophysicae An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

Journal metrics

  • IF value: 1.490 IF 1.490
  • IF 5-year value: 1.445 IF 5-year
    1.445
  • CiteScore value: 2.9 CiteScore
    2.9
  • SNIP value: 0.789 SNIP 0.789
  • IPP value: 1.48 IPP 1.48
  • SJR value: 0.74 SJR 0.74
  • Scimago H <br class='hide-on-tablet hide-on-mobile'>index value: 88 Scimago H
    index 88
  • h5-index value: 21 h5-index 21
Volume 18, issue 5
Ann. Geophys., 18, 566–572, 2000
https://doi.org/10.1007/s00585-000-0566-0
© European Geosciences Union 2000
Ann. Geophys., 18, 566–572, 2000
https://doi.org/10.1007/s00585-000-0566-0
© European Geosciences Union 2000

  31 May 2000

31 May 2000

Penetration of the Earth's free oscillations at 54 minute period into the atmosphere

G. M. Shved, L. N. Petrova, and O. S. Polyakova G. M. Shved et al.
  • Departments of Atmospheric Physics and Earth Physics, Institute of Physics, St. Petersburg State University, St. Petersburg-Petrodvorets 198904, Russia
  • Correspondence to: G. M. Shved
  • e-mail: shved@lmupa.phys.spbu.ru

Abstract. It is known that the fundamental spheroidal mode 0S2 of the Earth free oscillation with a period of about 54 min forces atmospheric oscillations. We present a certain phase relationship for components of the 0S2 multiplet, which is based on synchronous collocated microbarograph and seismograph observations. This relationship is both the first observational manifestation of the Pekeris mode of global atmospheric oscillations with the 54 min period and a further proof of the Earth's 0S2 mode penetrating into the atmosphere. We show that the linear non-dissipative model of steady forced oscillations in isothermal atmosphere at rest does not describe the penetration of the 0S2 mode into the atmosphere adequately.

Key words: Meteorology and atmospheric dynamics (middle atmosphere dynamics; waves and tides)

Publications Copernicus
Download
Citation