It was observed because of El Nino effect.
What was the weather event?
- Northern China experienced a drought in 1997.
- Southern China was flooded.
What is El Nino effect?
- It refers to heating up of ocean's surface above the average temperature.
- "The term is used for the eastern equatorial pacific ocean."
- It causes wetter than average conditions in south areas
- It causes less precipitation in northern areas leading to drought conditions.
What is La Niña?
- "It is the colder counterpart of El Nino".
- Due to this the ocean temperature near the surface is colder.
To learn more about El Nino, ocean, and temperature, here,
https://brainly.com/question/18307318
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