Context:
La Nina weather, which brings heavy rains and floods to India, may develop in the next three months but it is expected to be relatively weak and short-lived, the World Meteorological Organization (WMO) has said.
- La Nina:
- Cold Air Occupies More of India Compared to the El Nino Cold Air.
- La Nina year denoted rainfall caused by summer monsoon in Southeast Asia may generally tend to be above normal, especially northwest India and Bangladesh.
- Typically, beneficial to Indian economy primarily because of its agrarian-dependent industrial rate.
- It causes colder-than-average winters for Indian states.
- The temperatures fall as low as Tamil Nadu but doesn’t have much impact on the North East.
- La Nina:
- Cold Air Occupies More of India Compared to the El Nino Cold Air.
- La Nina year denoted rainfall caused by summer monsoon in Southeast Asia may generally tend to be above normal, especially northwest India and Bangladesh.
- Typically, beneficial to Indian economy primarily because of its agrarian-dependent industrial rate.
- It causes colder-than-average winters for Indian states.
- The temperatures fall as low as Tamil Nadu but doesn’t have much impact on the North East.
- Other Names
- La Nina, sometimes called El Viejo, anti-El Nino, or “a cold event,” is a spell of below-average sea surface temperature distribution in the east-central Equatorial Pacific.
- Ideal Situation for La Nina
- La Nina is over-the-average decrease in sea-surface temperatures over 0.9℉ and for five consecutive three-month periods.
- La Nina is said to happen as the water in the Eastern Pacific cools from the normal level. This reduces the pressure in the eastern equatorial Pacific into which this condition brings strong high pressure.
- Impact of La Nina
- Impact of La Nina is felt in Europe, North America, South America, the Western Pacific, and India.
- One of the most severe floods in 2010 by La Nina was in Queensland, Australia.
- El Nino: Strong events of El Nino weaken to drought in the monsoons across tropical India Southeast Asia.
