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建立了一个反映厄尔尼诺/南方涛动(ENSO)与热带远西太平洋准两年振荡(QBOWP)相互作用最基本物理过程的新概念模式.在此概念模式中,QBOWP对ENSO的影响通过两种途径:(1)沿赤道太平洋海洋Kelvin波和(2)大气的Walker环流;而ENSO对QBOWP的影响则可通过大气的Walker环流异常来实现.对该模式结果的分析诊断表明:在ENSO与QBOWP相互作用过程中,大气桥(Walker环流)的作用比海洋桥(沿赤道太平洋的Kelvin波)更重要;通过QBOWP与ENSO的相互作用,一个3~5年周期的ENSO振荡可以变为准两年振荡,而赤道远西太平洋年际变化的主要周期也会变长;热带太平洋大气-海洋耦合系统的多时间尺度的年际变化可以通过ENSO与QBOWP的相互作用来实现.
A new conceptual model reflecting the most elementary physical processes of El Niño / Southern Oscillation (ENSO) interacting with QBOWP in the tropical far west Pacific has been established, in which QBOWP’s impact on ENSO is measured in two ways (1) Walker circulation along the Pacific Kelvin wave and (2) atmosphere in the equatorial Pacific Ocean, while the influence of ENSO on QBOWP can be achieved by Walker circulation anomaly in the atmosphere. The analysis of the results of this model shows that when ENSO and QBOWP interact with each other The action of the atmospheric bridge (Walker circulation) is more important than that of the marine bridge (Kelvin wave along the equatorial Pacific). By the interaction between QBOWP and ENSO, a 3-5 year period ENSO oscillation can become quasi-two-year oscillation , While the main period of the interannual variation in the far western equatorial Pacific will also be longer. The interannual variation of the multi-time scale of the tropical Pacific-atmosphere coupled ocean-atmosphere system can be achieved through the interaction of ENSO and QBOWP.