A spectral climatology of planetary waves and tidal variability

A. G. Beard, P. J.S. Williams, N. J. Mitchell, H. G. Muller

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20 Citations (SciVal)


Four and a half years of data from a meteor radar based at Sheffield, UK, representing measurements of neutral wind velocity in the meteor region above 53°27'N, 3°53'W, are analysed to produce climatologies of both longer-period (2-30 days) neutral-wind oscillations (e.g. planetary waves) and longer-period variability in tidal amplitude measurements using running (dynamic) periodograms. The observed burst-like nature of longer-period oscillations and migration of period are discussed in the light of current planetary-wave theory. Evidence for the cyclical modulation of tidal amplitude with periods similar to those of planetary waves is also presented and its possible origin discussed.

Original languageEnglish
Pages (from-to)801-811
Number of pages11
JournalJournal of Atmospheric and Solar-Terrestrial Physics
Issue number9
Early online date23 May 2001
Publication statusPublished - 23 May 2001


  • Amplitude modulation of tides
  • Planetary waves
  • Spectral climatology

ASJC Scopus subject areas

  • Geophysics
  • Atmospheric Science
  • Space and Planetary Science


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