ON THE SYMMETRIC DEVELOPMENT OF MESOSCALE DISTURBANCES

The effects of baroclinic basic flow on a paralleled mesoscale disturbance development are investigated.By using the WKB method,two-dimensional perturbation equations with the anelastic approximation are analyzed.The result indicates that the symmetric development of a mesoscale disturbance is due to the inhomogeneous thermal wind deviations and unstationality of the basic field.