热带太平洋特征模模式以及埃尔尼诺形成动力机制
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摘要: 本文引入并构造了分层的热带太平洋扰动的特征模模式,进一步探讨了热带太平洋温跃层深度扰动的动力学机制及动力学结构,发展和改进了ENSO动力学研究中常用的第一阶铅直斜压模扰动模式.研究结果表明,除海洋混合层(表层)与温跃层(次表层)之间的动量交换是形成温跃层深度扰动的重要动力学机制之外,分层海洋的铅直质量交换同样在导致温跃层深度扰动中发挥重要的动力学作用,两者具有不同的动力学结构.文中还讨论了埃尔尼诺形成的动力学机制和动力学过程.
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