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本文研制设计了一包含海洋表面边界层和大气福合反馈过程的热带太平洋海气耦台异常模式，进而利用该模式对ENSO循环进行了成功的模拟。通过对模式ENSO循环的演变特征及其形成机制的细致分析，揭示了ENSO暖位相的一种机制。指出：（1）和观测事实类似，模式ENSO循环涉及了三种时间尺度过程即具有3－4年主周期的甚低频振荡模态（LF）、准两年振荡（QB）和年循环（AC）；（2）ENSO循环的负反馈机制在冷暖态中表现不同，在冷态消亡过程中，这种负反馈过程主要表现为西边界反射产生的时滞效应，但在暖态消亡过程中不存在类似的时滞效应，其负反馈过程主要表现为在海气耦合不稳定充分发展时伴随的赤道两侧冷水上翻过程的加强以及非线性过程的衰减作用抑制了不稳定的发展并最终使得系统恢复至冷态，（3）ENSO循环的3－4年主周期振荡（LF）是一非线性系统的自激振荡现象，其形成是线性系统的本征模即准两年振荡（QB）通过“单向性”大气辐合反馈加热过程减频增幅所致；（4）虽然年循环（AC）过程对ENSO循环形成没有本质影响，但它可明显影响ENSO循环的具体振幅和位相，使得ENSO以季节循环有明显的“销相”特征，并也使ENSO循环在振幅大小和时间长短方面呈现出明显的不规则性。因此，ENSO变化性是LF、QB和AC等多?
In this paper, we designed and developed an anomaly pattern of the coupled tropical-Pacific ocean-atmosphere coupling including the ocean surface boundary layer and atmospheric blessing feedback process, and then successfully simulated the ENSO cycle by using this model. Through a detailed analysis of the evolution characteristics of the pattern ENSO cycle and its formation mechanism, a mechanism of ENSO warm phase is revealed. It is pointed out that: (1) Similar to the observations, the mode ENSO cycle involves three time-scale processes: very low frequency oscillation mode (LF), quasi-two-year oscillation ). (2) The negative feedback mechanism of ENSO cycle behaves differently in the warm and cold states. During the process of cold extinction, the negative feedback process mainly shows the time lag effect caused by the reflection of the western boundary. However, during the extinction of the warm state There is a similar time lag effect, the negative feedback process is mainly manifested in the instability of the ocean-atmosphere coupled with the expansion of both the cold water on both sides of the equator and the attenuation of nonlinear processes inhibit the development of instability and eventually (3) The main periodic oscillation (LF) of 3-4 years of the ENSO cycle is a self-oscillating phenomenon of a nonlinear system, and its formation is the quasi-two-year oscillation (QB) of the eigenmodes of the linear system. (4) Although the annual cycle (AC) process has no essential effect on ENSO cycle formation, it can significantly affect the specific amplitudes of the ENSO cycle and Phase, making ENSO obvious “pin-phase” characteristic in seasonal cycle and also making ENSO cycle show obvious irregularity in amplitude and duration. Therefore, ENSO variability is LF, QB and AC and more?