西南低空急流的能量学分析

ENERGETIC ANALYSIS OF THE SOUTHWESTERLY LOW-LEVEL JET STREAM

摘要:

本文分析了梅雨期内三次西南低空急流的实例,结果表明,散度风动能产生和积云对流效应是低中空急流的动能来源,而影响散度风动能产生的主要物理因子是潜热加热,温度平流以及ω方程中散度项的作用。

Abstract:

Three cases of the southwesterly low-level jet stream during the Meiyu season have been analyzed,showing that the kinetic energy of the jet stream is generated by the kinetic energy production of the divergence wind and the effect of the cumulus convection. The main physical factors affecting the rate of divergence wind kinetic energy production are latent heating, temperature advection and the role of the divergence term in the ω equation.