CLIMATE OF INDIA
EL NINO AND SOUTHERN OSCILLATIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In a La Nina event, the SOI is strongly ____ and the air pressure in Darwin is ____ than in Tahiti
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Positive, Lower
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Positive, Higher
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Negative, Lower
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Negative, Higher
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Explanation:
Detailed explanation-1: -A positive SOI indicates La Niña, while a negative SOI indicates El Niño.
Detailed explanation-2: -Effects of La Niña La Niña is characterized by lower-than-normal air pressure over the western Pacific. These low-pressure zones contribute to increased rainfall. Rainfall associated with the summer monsoon in Southeast Asia tends to be greater than normal, especially in northwest India and Bangladesh.
Detailed explanation-3: -During La Nina (positive SOI), the pressure is higher than average over the central Pacific near Tahiti, and lower than average over Australia. During El Nino, the SOI is negative, and the anomalies are reversed.” The Pacific circulation numbers are definitely in the La Nina phase.
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