Physics
Scientific paper
May 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001angeo..19..545m&link_type=abstract
Annales Geophysicae, vol. 19, Issue 5, pp.545-562
Physics
4
Scientific paper
The longitudinal structure of the day-to-day variations of semidiurnal tide amplitudes is analysed based on coordinated mesosphere/lower thermosphere wind measurements at several stations during three winter campaigns. Possible excitation sources of these variations are discussed. Special attention is given to a nonlinear interaction between the semidiurnal tide and the day-to-day mean wind variations. Data processing includes the S-transform analysis which takes into account transient behaviour of secondary waves. It is shown that strong tidal modulations appear during a stratospheric warming and may be caused by aperiodic mean wind variations during this event.
Fachrutdinova A. N.
Hoffman Paul
Jacobi Ch.
Manson Alan H.
Merzlyakov E. G.
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