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Relationship between QBOs of stratospheric winds, ENSO variability and other atmospheric parameters
Author(s) -
Kane R. P.
Publication year - 1992
Publication title -
international journal of climatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.58
H-Index - 166
eISSN - 1097-0088
pISSN - 0899-8418
DOI - 10.1002/joc.3370120503
Subject(s) - climatology , quasi biennial oscillation , troposphere , stratosphere , atmospheric sciences , environmental science , amplitude , oscillation (cell signaling) , el niño southern oscillation , geology , physics , chemistry , quantum mechanics , biochemistry
The 50‐mbar tropical zonal wind has a predominent quasi‐biennial oscillation (QBO) mode of an average period of ca. 28 months, with variation in the range 21–33 months and amplitudes varying within ± 20 per cent. For the Southern Oscillation, Tahiti minus Darwin (T‐D), sea‐surface temperature (SST) and equatorial rainfall indices, QBO is not the strongest mode. Periods of 3.6 and ca. 6 years are stronger. The QBO modes for these and other parameters (e.g. surface winds and winds in upper and lower troposphere and stratospheric winter temperature at the North Pole) are very irregular, with amplitudes, phases, and sometimes even period having large changes with time. It seems that these have little relationship with the 50‐mbar zonal wind QBO and may have altogether different origins.