中低纬过渡地区潜热影响下中尺度扰动的对称发展  

On the Symmetric Development of Mesoscale Disturbances with Non-adiabatic Heating in the Transition Zone of Mid-low Latitudes

作　　者：吴勇 欧阳首承[1] 

机构地区：[1]四川涪陵地区国土局,成都气象学院

出　　处：《大气科学》1995年第5期631-635,共5页Chinese Journal of Atmospheric Sciences

摘　　要：本文引入第二科里奥利参数讨论了中低纬过渡地区含非绝热（潜热）作用的对称扰动渡包发展问题。结果表明：这一地区扰动波包的发展不仅包含了中高纬度波包发展条件［１］而且与潜热和基本风场梯度经向切变及波包传播的非垂直性有关。过渡地区基本风场的作用是通过第一和第二科里奥利参数完成的。This paper studies the symmetric development of mesoscale disturbances with non-acsabatic (latent heat) heating in the transition zone of mid-low latitudes. The results show that the synmetric development of disturbances not only contains the conditions of development of the wavepacket inmid-high latitudes, but also is related to the latent heat and non-verticality of basic now shear gradientwith a wave packet speed. The action of the basic flow in the transition zone of mid-low latitudes depends on the first and the second Coriolis parameters.

关 键 词：中低纬过渡带 扰动波包 潜热 中尺度扰动 

分 类 号：P432[天文地球—大气科学及气象学]