Asymptotic solving method of soliton for El Ni o/La Ni a-southern oscillation nonlinear disturbed model
厄尔尼诺/拉尼娜-南方涛动非线性扰动模型孤子的渐近解法

A class of El Ni o/La Ni a-southern oscillation (ENSO) stochastic disturbed model is considered. Firstly, using the special method of undetermined coefficients, the exact solution of the non-disturbed ENSO model is obtained. Then the approximate solutions of stochastic disturbed ENSO model are constructed by using the asymptotic theory and method. And it is illustrated with example that the asymptotic solutions have the better degree of accuracy.