Solitary Waves of the Barotropic Quasi-geostrophic Model with Large-scale Orography

Starting from a modified barotropic quasi-geostrophic model equation, considering the actual situation of the large-orography of the Qinghai-Xizang Plateau, neglecting its east-west slope, the solitary waves are obtained using reductive perturbation method. The results show that the orography is an essential factor to excite Rossby solitary waves in basic flow without shear.