摘要: AbstractA methodology for identifying equatorial waves is used to analyze the multilevel 40-yr ECMWF Re-Analysis (ERA-40) data two different years (1992 and 1993) investigate behavior of under opposite phases quasi-biennial oscillation (QBO). A comprehensive view 3D structures zonal vertical propagation Kelvin, westward-moving mixed Rossby–gravity (WMRG), n = 1 Rossby (R1) in QBO presented. Consistent with expectation based on theory, upward-propagating Kelvin occur more frequently during easterly phase than westerly phase. However, WMRG R1 show behavior. The presence vertically propagating stratosphere also depends upper tropospheric winds forcing.Typical parameters such as wavenumber, speed, period, wavelength, group velocity are fo...
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