Abstract
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 language | English |
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Pages (from-to) | 801-811 |
Number of pages | 11 |
Journal | Journal of Atmospheric and Solar-Terrestrial Physics |
Volume | 63 |
Issue number | 9 |
Early online date | 23 May 2001 |
DOIs | |
Publication status | Published - 23 May 2001 |
Keywords
- Amplitude modulation of tides
- Planetary waves
- Spectral climatology
ASJC Scopus subject areas
- Geophysics
- Atmospheric Science
- Space and Planetary Science