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With reference to the El Niño-Southern Oscillation system, or ENSO, consider the following statements:
1. ENSO conditions can alter both temperatures and rainfall globally, due to their strong interference on global atmospheric circulations.
2. El Nino is more frequent than La Nina.
Which of the statements given above is/are correct?
- a)1 only
- b)2 only
- c)Both 1 and 2
- d)Neither 1 nor 2
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
With reference to the El Niño-Southern Oscillation system, or E...
The Australian Bureau of Meteorology on September 13 confirmed the occurrence of La Niña phenomenon for the third consecutive year in the Pacific Ocean.
- The World Meteorological Organisation (WMO) on August 31 had stated that the oceanic and atmospheric phenomenon would last until at least the end of the year, and for the first time this century, span three consecutive northern hemisphere winters to become a ‘triple dip’ La Nina.
- El Nino and La Nina, which mean ‘the boy’ and ‘the girl’ in Spanish, are mutually opposite phenomena, during which an abnormal warming or cooling of sea surface temperatures is observed in the Pacific Ocean along the equator, off the coast of South America.
- Together they constitute what is known as the El Niño-Southern Oscillation system, or ENSO for short.
- ENSO conditions can alter both temperatures and rainfall globally, due to their strong interference on global atmospheric circulations.
- It is a recurring phenomenon and the change in temperature is accompanied by changes in the patterns of upper and lower level winds, sea level pressure, and tropical rainfall across the Pacific Basin.
- Normally, El Nino and La Nina occur every four to five years. El Nino is more frequent than La Nina.
Hence both statements are correct.
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With reference to the El Niño-Southern Oscillation system, or E...
Understanding ENSO
The El Niño-Southern Oscillation (ENSO) is a climate pattern that describes variations in ocean temperatures and atmospheric conditions in the central and eastern tropical Pacific. It consists of three phases: El Niño, La Niña, and the neutral phase.
Statement 1: Global Impact of ENSO
- ENSO significantly influences global weather patterns.
- It alters temperatures and rainfall across various regions.
- The mechanisms involve strong interference with atmospheric circulations, such as the trade winds and the jet streams.
- For instance, El Niño often leads to wetter conditions in the eastern Pacific and droughts in the western Pacific, affecting global climate systems.
Statement 2: Frequency of El Niño vs. La Niña
- Historically, El Niño events tend to occur more frequently than La Niña events.
- Data shows that, on average, El Niño occurs approximately every 2 to 7 years, while La Niña tends to follow El Niño but is less frequent.
- This frequency difference is important for understanding climate variability and preparing for its effects.
Conclusion
Both statements are correct:
1. ENSO does indeed alter global temperatures and rainfall due to its significant impact on atmospheric circulations.
2. El Niño events are more frequent than La Niña events.
Thus, the correct answer is option 'C', indicating that both statements are accurate in describing the ENSO system. Understanding these dynamics is crucial for climate prediction and management.
The El Niño-Southern Oscillation (ENSO) is a climate pattern that describes variations in ocean temperatures and atmospheric conditions in the central and eastern tropical Pacific. It consists of three phases: El Niño, La Niña, and the neutral phase.
Statement 1: Global Impact of ENSO
- ENSO significantly influences global weather patterns.
- It alters temperatures and rainfall across various regions.
- The mechanisms involve strong interference with atmospheric circulations, such as the trade winds and the jet streams.
- For instance, El Niño often leads to wetter conditions in the eastern Pacific and droughts in the western Pacific, affecting global climate systems.
Statement 2: Frequency of El Niño vs. La Niña
- Historically, El Niño events tend to occur more frequently than La Niña events.
- Data shows that, on average, El Niño occurs approximately every 2 to 7 years, while La Niña tends to follow El Niño but is less frequent.
- This frequency difference is important for understanding climate variability and preparing for its effects.
Conclusion
Both statements are correct:
1. ENSO does indeed alter global temperatures and rainfall due to its significant impact on atmospheric circulations.
2. El Niño events are more frequent than La Niña events.
Thus, the correct answer is option 'C', indicating that both statements are accurate in describing the ENSO system. Understanding these dynamics is crucial for climate prediction and management.
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With reference to the El Niño-Southern Oscillation system, or ENSO, consider the following statements:1. ENSO conditions can alter both temperatures and rainfall globally, due to their strong interference on global atmospheric circulations.2. El Nino is more frequent than La Nina.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'C'. Can you explain this answer?
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