In this paper, the WKB method is used to obtain the nonlineas schrodinger equation satisfied by nonlinear inertia-gravitatrnal wave in the atmosphere, It is found that the nonlineas schiodinges equation has envelope solitary wave solution.

• 本文用WKB方法讨论大气中惯性重力内波的调制问题，得到了Schrodinger方程及其包络孤立子解。