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The intensity of El Niño events is often measured using the Oceanic Niño Index (ONI), which assesses sea surface temperature anomalies in the central and eastern Pacific Ocean. The ONI is typically classified into categories: weak (0.5 to 0.9°C), moderate (1.0 to 1.4°C), and strong (1.5°C or greater) deviations from the long-term average. These temperature anomalies are critical for predicting the potential impacts of El Niño on global weather patterns.

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AnswerBot

4d ago

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