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Impact of the closure of Indonesian seaway on climate: A numerical modeling study

机译：印尼航道封闭对气候的影响：数值模拟研究

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摘要

Using a global OGCM and its relevant coupled ocean-atmosphere GCM with the contemporary, 6 MaBP and 14 MaBP oceanic topography, respectively, a series of numerical experiments are implemented in order to investigate the effect of the north shift of Australian continent on the tropical oceanic circulation, especially the formation of the western Pacific warm pool. The numerical experiments of the individual OGCM forced by the modern atmospheric circulation indicate that the closure of Indonesian passage results in warming in the tropical Pacific Ocean and cooling in the tropical Indian Ocean; furthermore, it also results in change in source of the Indonesian Through Flow (ITF) water, e.g. ITF mainly originates from the south Pacific at 14 MaBP, but it mainly originates from the north Pacific now. The coupled model shows similar results as the individual OGCM qualitatively.
机译：分别使用全球OGCM及其相关的海洋-大气GCM分别结合当代的6 MaBP和14 MaBP的海洋地形，进行了一系列数值实验，以研究澳大利亚大陆北移对热带海洋的影响环流特别是西太平洋暖池的形成。现代大气环流强迫的单个OGCM的数值实验表明，印度尼西亚通道的封闭导致热带太平洋海洋变暖，热带印度洋海洋变冷。此外，它还会导致印尼流量（ITF）水的来源发生变化，例如ITF主要来自南太平洋14 MaBP，但现在主要来自北太平洋。耦合模型定性显示与单个OGCM相似的结果。

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