D. Pancheva et P. Mukhtarov, VARIABILITY OF MESOSPHERIC DYNAMICS OBSERVED AT YAMBOL (42.5-DEGREES-N, 26.6-DEGREES-E) BY METEOR RADAR, Journal of atmospheric and terrestrial physics, 56(10), 1994, pp. 1271-1278
On the basis of a best fit model, containing all subharmonics of a sol
ar day, with variable amplitudes and generalized phases, the character
istics of the prevailing wind, tides and the quasi-2-day variations ov
er Bulgaria for the time interval January 1991-June 1992 are obtained.
An attempt is made to study the influence of the winter stratospheric
warming on the tidal variability, The result obtained suggests an int
eraction between tides and a planetary wave.