The Decadal Variability of the Global Monsoon Links to the North Atlantic Climate Since 1851
The Decadal Variability of the Global Monsoon Links to the North Atlantic Climate Since 1851
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DOI：
10.1029/2019gl081907
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发表时间：
2019-08
影响因子：
5.2
通讯作者：
Tao Han;Kefu Yu;Hong Yan;Hongqiang Yan;Shichen Tao;Huiling Zhang;Shaopeng Wang;Tegu Chen
中科院分区：
文献类型：
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作者：
Tao Han;Kefu Yu;Hong Yan;Hongqiang Yan;Shichen Tao;Huiling Zhang;Shaopeng Wang;Tegu Chen
迄今为止，全球季风（GM）的年代际变化主要利用过去50年收集的仪器数据进行研究，但由于数据长度有限，进一步的讨论受到阻碍。在这里，我们提供了来自南海北部的珊瑚δ18O记录，那里的水文与季节性热带辐合带（ITCZ）迁移有关，我们使用该记录重建了自公元1851年以来ITCZ的年代际迁移。将我们的记录与季风记录的综合相结合，揭示了过去150年GM的反相半球间变化，表明十年尺度热带地区的水文变化受到 ITCZ 经向迁移的调节。观察到的全球机制的年代际变率与大西洋多年代际振荡之间的合理关系表明，热带水文变化的年代际变率可能与北大西洋的气候扰动有关。
To date, the decadal variability of the Global Monsoon (GM) has been mainly studied using instrumental data collected over the last 50 years, and further discussion has been hampered by the limited data length. Here, we present a coral δ18O record from the northern South China Sea, where the hydrology is related to the seasonal Intertropical Convergence Zone (ITCZ) migration, and we use this record to reconstruct the decadal migration of the ITCZ since 1851 A.D. Combining our record with a synthesis of monsoon records reveals an anti‐phase inter‐hemispheric variability of the GM over the last 150 years, indicating that the decadal‐scale hydrologic variability in the tropics is modulated by the meridional migration of the ITCZ. The plausible relationship observed between the decadal variability of the GM and the Atlantic Multidecadal Oscillation suggests that the decadal variability of tropical hydrological changes is likely linked to the climate perturbations in the North Atlantic.