正压大气模式下大地形和β变化的Rossby波

Based on the potential vorticity equation, the large topography and the change of Rossby wave parameter β with the latitude were considered and parameter δ was introduced. With the normal mode method, the Rossby wave phase velocity formula was obtained in the high latitude regions with the large topography, the Froude number and parameter δ. The research points out that the large topography and the Froude number under the change of β influence the stability of Rossby waves, and these factors usually play a stabilizing part in the Rossby waves.