The annual course of zonal wind speed at 700 mb for latitudes 20° to 90 °N is portrayed in three ways—from monthly normal data, from monthly mean data averaged over a recent seven year period, and from 5-day mean data averaged over the same seven years. In a broad sense these representations have much in common, but the 5-day data reveal certain well-marked shorter period variations in the westerlies which appear to be related to singularities of the general circulation.
Research Article| 21 August 2018
The Annual Course of Zonal Wind Speed at 700 Mb
Bull. Amer. Meteor. Soc. (1954) 35 (10): 468–471.
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Winston, J. S., 1954: The Annual Course of Zonal Wind Speed at 700 Mb. Bull. Amer. Meteor. Soc., 35, 468–471, https://doi.org/10.1175/1520-0477-35.10.468.
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