Wave-CISK的一个斜压半地转模式和低频振荡

A BAROCLINIC SEMI-GEOSTROPHIC MODEL USING THE WAVE-CISK THEORY AND LOW-FREQUENCY OSCILLATION

摘要: 本文建立了一个描写低纬大气运动的斜压半地转的wave-CISK模式,其中引入了一个反映CISK机制的无量纲的凝结潜热参数η(z),并求得了η=0和η≠0条件下wave-CISK模式的解析解,理论研究进一步说明wave-CISK机制对于大气低频振荡起重要的作用.

Abstract: A baroclinic semi-geostrophic model describing the atmospheric motion in low latitudes and using the wave-C1SK theory is established and the analytic solution is obtained.It is shown that the effect of the non-dimensional latent heat parameter η which is assumed to depend only on height and used to state the wave-CISK mechanism is verv important to the low-freauency oscillation.