Sothern Oscillation found by Hildebrandsson, Walker and Bjerknes?

The effect on the winds sea currents by the Earth's rotation, the Coriolis effect, is weak near the equator where the dominant movement is rising heated air; convection. It can therefore be led to believe that the tropical circulation is fairly straightforward, as an unstable Swedish summer day, but with larger and heavier showers. But no, the tropical atmosphere is full of strange phenomena, which often gets stranger the closer to the equator we come.

Being in the middle of your 50-years crisis? The meteorologists Hugo Hildebrandson (1838 - 1925), Gilbert Walker (1868-1958) and Jack Bjerknes (1898-1974) all made epoch-making discoveries when they were well over 50.

In the late 1890s Hildebrandsson discovered strange, slow and large-scale atmospheric pressure variations, particularly in the Pacific Ocean. Months with high air pressure over Indonesia / Australia were found to be associated with low pressure over South America and vice versa. Walker followed the path of Hildebrandsson and mapped in the mid 1920s in more detail this phenomena, which he called, the Southern Oscillation.

In 1969, Jacob Bjerknes helped toward an understanding of El Niño Southern Oscillation, by suggesting that an anomalously warm spot in the eastern Pacific can weaken the east-west temperature difference, disrupting trade winds, which push warm water to the west. The result is increasingly warm water toward the east