According to the analyses of 5-days lagged correlation, the ISO propagates northward from the tropics to higher latitudes in the regions of the Arabian Sea, the Bay of Bengal, and the Indian Ocean.

• 从季内扰动5天后之移行路径的比较中发现，观测中夏季季内振荡有明显自低纬地区往北移动的现象以及微弱的东移，部份模式则在低纬地区有西移的趋势。