What is the Southern Oscillation Index (SOI)? MCQ with Answer and Explanation

What is the Southern Oscillation Index (SOI)?
A. The difference in sea level pressure between Tahiti and Darwin
B. The difference in sea level pressure between the Atlantic and the Pacific
C. The difference in sea level pressure between the Azores and Iceland
D. The difference in sea level pressure between the Arctic and the Antarctic
Answer: Option A
Solution (By JKExamLibrary)
The Southern Oscillation Index (SOI) is a measure of the difference in sea level pressure between Tahiti (central Pacific) and Darwin (northern Australia). A negative SOI indicates El Niño conditions, while a positive SOI indicates La Niña conditions.

This question belongs to: Geography GK Climate and Weather

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