Abstract
THE recent discovery by Ebdon and Veryard1,2 and by Reed et al.3 of a biannual oscillation in the equatorial stratospheric winds has aroused considerable interest in the physics and dynamics of the stratosphere. It is now well established that the zonal winds in the stratosphere over the equatorial regions of the entire globe alternate in direction between east and west, one cycle of reversal taking a period of about 26 months. An oscillation of a similar period has been observed in the equatorial stratospheric temperatures also. Further, there is evidence from available aerological observations that the biannual wave is propagated slowly downwards from a level at about 30 km or perhaps even higher.
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References
Ebdon, R. A., and Veryard, R. G., Nature, 189, 791 (1961).
Ebdon, R. A., and Veryard, R. G., Met. Mag., 90, 125 (1961).
Reed, R. H., et al., J. Geophys. Res., 66, 813 (1961).
Funk, J. P., and Garnham, G. L., Tellus, 14, 378 (1962).
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RANGARAJAN, S. Variations in Ozone associated with the Oscillations of Equatorial Stratospheric Wind. Nature 201, 178 (1964). https://doi.org/10.1038/201178a0
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DOI: https://doi.org/10.1038/201178a0
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