quasi-biennial Oscillation

'quasi-biennial Oscillation' can also refer to...


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An oscillation in the mean zonal wind in the tropical stratosphere which switches between westerly and easterly phases on an approximately 27-month time-scale. The oscillation is at a maximum at an altitude of c.25 km, and also involves fluctuations in temperature and ozone levels.

Subjects: Meteorology and Climatology.

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