The weakening of easterly tradewinds during an El-Niņo/Southern Oscillation event is evident in these figures as well. Rainfall follows the warm water eastward, with associated flooding in Peru and drought in Indonesia and Australia. The eastward displacement of the atmosphere overlaying the warmest water results in large changes in the global atmospheric circulation, which in turn force changes in weather in regions far removed from the El-Niņo waters of the tropical Pacific.

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