抄録
Equations of motion, in a primitive form, of adiabatic change and continuity relation are used to examine the stability properties of the large-scale baroclinic disturbance including the non-geostrophic effect.
Especially, in the longer and shorter wavelengths, there seem s to be no appreciable change in the stability criterion obtained so far.
The fundamental equations involve three kinds of propaga t i ng waves. Two of them are expressed by combination of the Rossby wave and the inertial internal gravity wave, and the other is the socalled meteorologically significant wave, which propagates westward with a very small velocity.
By using data carefully analysed, the following quantity is estimated; R=Kxt/ Kφt,
in order to know the ratio of time rates of the kinetic energy of the divergent and rotational component of the wind.
Simultaneously, G-number is estimated for 300,500 and 700mb levels of the atmosphere.
