The Southern Oscillation Index (SOI)
Ausloos and Ivanova (2001, p. 1) succinctly define the Southern Oscillation Index (SOI) as a core component or characteristic of the El Nino phenomenon. The SOI data have been collected and analyzed since the year 1866 so as to effectively study and explain the occurrence of extreme climactic events. This makes it possible for meteorologists to understand the outstanding factors of the sometimes catastrophic phenomenon of El Nino and therefore be able to estimate and accurately predict future trends.
In essence, the core aspects of the SOI are derived from studying the cyclical warming and cooling of localized regions within ...
