Numerical experiments using a regional ocean–atmosphere coupled general circulation model show the influence of Indian Ocean Dipole (IOD) events on the Pacific Ocean through the oceanic channel known as the Indonesian Throughflow (ITF) by isolating the role of the atmospheric bridge. The 2019 Positive IOD and 2016 Negative IOD events can force enhanced and decreased ITF transport through subsurface processes. Currents and sea level anomalies allowed a thorough comparison between 2016 and 2019 IOD events. The upwelling and downwelling Kelvin waves can propagate through the Indonesian seas along the Sumatra–Java island chain, forcing SSHA in the southeastern basin to grow quickly and reach the western Pacific Ocean. The numerical results suggest that the 2016 negative IOD could cause an El Niño-like state and that the 2019 positive IOD could cause a La Niña-like state in the Pacific Ocean.

使用区域海洋-大气耦合环流模型的数值实验通过隔离大气桥的作用，显示了印度洋偶极子 (IOD) 事件通过称为印度尼西亚通流 (ITF) 的海洋通道对太平洋的影响。2019 年正 IOD 和 2016 年负 IOD 事件可以迫使通过地下过程增强和减少 ITF 传输。洋流和海平面异常允许对 2016 年和 2019 年 IOD 事件进行彻底比较。上升和下降的开尔文波可以沿着苏门答腊-爪哇岛链在印度尼西亚海域传播，迫使东南部盆地的 SSHA 快速增长并到达西太平洋。