Which one among the following statements is NOT correct regarding the La Niña event of the global climate system?
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → It refers to abnormal warming of sea surface water in central and eastern tropical Pacific Ocean
Let’s analyze the statements about La Niña carefully:
- It causes drought in Peru and Ecuador and heavy floods in Australia → True. La Niña strengthens the trade winds, pushing warm water westwards, causing heavy rainfall in Australia and drought in Peru/Ecuador.
- It is beneficial for the Indian monsoon and aids rainfall across India → True. La Niña usually enhances the southwest monsoon.
- It refers to abnormal cooling of sea surface water in central and eastern tropical Pacific Ocean → True. This is the definition of La Niña.
- It refers to abnormal warming of sea surface water in central and eastern tropical Pacific Ocean → False. This describes El Niño, not La Niña.