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| Titel |
Penetration of the Earth's free oscillations at 54 minute period into the atmosphere |
| VerfasserIn |
G. M. Shved, L. N. Petrova, O. S. Polyakova |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
0992-7689
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| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 18, no. 5 ; Nr. 18, no. 5, S.566-572 |
| Datensatznummer |
250013990
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| Publikation (Nr.) |
 copernicus.org/angeo-18-566-2000.pdf |
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| Zusammenfassung |
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) |
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