The Low Frequency Dynamics on the Wave Ray Propagation of Tropical Atmosphere Energy Dispersion

On the condition of non-zero frequency wave, two kinds of mathematical models with divergence and nondivergence hypothesis are used to discuss the dynamic characteristics of the propagation of the atmospheric low-frequency wave in this paper. The results indicated that the parameter of non-zero frequency was the key factor which affected the path and amplitude of the energy dispersive wave in atmospheric low-frequency oscillation (LFO), especially noted that the meridional propagation of the LFO had significant correlation with its concomitant strong convective cloud cluster and factor ¦Âet al. The cumulus convection accompanied with meridional propagation of the atmospheric LFO over middle and low-latitude as well as the mechanism of the propagation were further indicated, the response feature of the mathematical model from WKB approximation method together with the resolution mode of the wave ray equation on the dynamic characteristics of the atmospheric LFO and vertical profile of the water vapor as well as the unstable stratification et al were also described. The feature of the unstable stratification showed a type of °®water vapour column°¯ with a weak vertical variation of the water vapour composed by the above key factors could cause the intensification of the wave amplitude of LFO and meridional propagation.