斜压半地转模式中的非频散周期解

NONDISPERSIVE PERIODIC SOLUTION OF A BAROCLINIC SEMI-GEOSTROPHIC MODEL

利用实际大气参数取值进行尺度分析，求得斜压半地转模式中非线性斜压Ｒｏｓｓｂｙ波的非频散周期解的存在条件与解．给出了能够描述非线性特征波动的无量纲拟能数ε，由此推导了非线性特征波动的波速公式及波多数间的一些诊断关系．

Scaling with selected values of real atmosphere, the existence and solution of the nondispersive periodic solution are achieved concering nonlinear baroclinic Rossby wavea of a baroclinic semi-geostrophic model. The number of dimensionless emstrophy can be described nonlinear characteristic wave. Therefore, the wave velocity expression is proposed with some diagnostic relations among the wave parameters.