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

Asymptotic solving method of soliton for El Nino/La Nina-southern oscillation nonlinear disturbed model

研究了一类厄尔尼诺/拉尼娜-南方涛动(ENSO)随机扰动模型.首先,利用特殊的待定系数方法得到了无扰动ENSO模型下的孤子精确解.然后利用渐近理论和方法构造了随机扰动ENSO模型的近似解,并举例说明得到的渐近解具有较好的精度.

A class of E1 Nifio/La Nifia-southem 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.