QBO cycle identified by changes in height profile of the zonal winds: new regularities

Influence of solar UV irradiance on the quasi-biennial oscillation of zonal winds in the equatorial stratosphere

“…Fig. 1 (bottom panel) presents a scheme of the zonal wind evolution as a succession of profiles passing through eight stages in course of the QBO cycle (Gabis and Troshichev, 2005). Fig.…”

“…Previously it was shown (Gabis, I.P., Troshichev, O.A., 2005. QBO cycle identified by changes in height profile of the zonal winds: new regularities.…”

The validity of long-term prediction of quasi-biennial oscillation (QBO) as a proof of the exact seasonal synchronization of the equatorial stratospheric QBO cycle

“…The method of long-tern prediction has been elaborated and verified for the QBO-cycles proceeded in the period from July 2002 to June 2011 (Gabis, 2012;Gabis and Troshichev, 2005a;2006;2011). Fig.…”

“…Therefore, it would complete in December 2004 and the next QBO-cycle would begin in January 2005 (Gabis and Troshichev, 2005a).…”

“…Furthermore, in the majority of cases the easterly stopping lasts only 3-4 months, and this short halts are not so obvious in the time-height sections as long delays that occur only sometimes and continue near 40-50 hPa from July to February. Also it was shown that the start and the end of all easterly wind regime delays (the stages of stagnation) are strongly coupled to seasons: the stagnation is always observed between the solstice and the following first, second or third equinox (Gabis, 2012;Gabis and Troshichev, 2004, 2005a, 2005b, 2006, 2011. The resulting discretely changing length of the stagnation stages causes the clearly defined quantized QBOperiod (24,30 or 36 months), that allows the long-term prediction of the QBO-cycle evolution.…”