The response of the period of the quasi-biennial oscillation (QBO) to increases in tropical upwelling are considered using a one-dimensional model. We find that the imposition of the annual cycle in tropical upwelling creates substantial variability in the period of the QBO. The annual cycle creates synchronisation regions in the wave forcing space, within which the QBO period locks onto an integer multiple of the annual forcing period. Outside of these regions, the QBO period undergoes di...Expand abstract
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Copyright © 2015 The Authors. Quarterly Journal of the Royal Meteorological Society published by John Wiley and Sons Ltd on behalf of the Royal Meteorological Society.
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Synchronisation of the equatorial QBO by the annual cycle in tropical upwelling in a warming climate
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