Dynamics of El Niño–Southern Oscillation
Dynamics of El Niño–Southern Oscillation
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DOI：
10.1007/978-3-319-59597-9_5
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
Tim Li;P. Hsu
中科院分区：
文献类型：
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作者：
Tim Li;P. Hsu
本章首先介绍了厄尔尼诺-南方涛动(ENSO)的观测特征，然后讨论了ENSO的不稳定性和振荡理论。其次，讨论了它对年周期的位相锁定机制。通过海洋混合层收支分析，探讨了造成厄尔尼诺和拉尼娜振幅不对称以及厄尔尼诺和拉尼娜演化不对称的物理机制。进一步讨论了年代际平均态对厄尔尼诺现象的调节作用。最后描述了热带印度洋具有纬向偶极子结构特征的海-气相互作用模式。
In this chapter, the observed characteristics of the El Niño – Southern Oscillation (ENSO) is described, followed by the discussion of the ENSO instability and oscillatory theories. Next, the mechanisms of its phase locking to the annual cycle are discussed. Through the oceanic mixed-layer budget analysis, physical mechanisms responsible for El Niño and La Niña amplitude asymmetry and El Niño and La Niña evolution asymmetry are investigated. How the interdecadal mean state modulates the El Niño behavior is further discussed. Finally, an air–sea interaction mode with a characterized zonal-dipole structure in the tropical Indian Ocean is described.