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Consider the following statements regarding Indian Ocean Dipole (IOD).
- The IOD is an ocean-atmosphere interaction very similar to the El Nino fluctuations in the Pacific Ocean.
- It is always a much stronger system than El Nino, and thus has relatively greater impacts.
- A positive IOD have the potential to offset the impacts of El Nino to a small measure in neighbouring areas.
How many of the above statements are correct?
- a)Only one
- b)Only two
- c)All three
- d)None
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Consider the following statements regarding Indian Ocean Dipole (IOD)....
Statement 2 is incorrect.
- With the El Nino phenomenon almost certain to affect the Indian monsoon this year, high hopes are pinned on the development of a positive Indian Ocean Dipole (IOD) and its ability to counterbalance the El Nino effect. The IOD is an ocean-atmosphere interaction very similar to the El Nino fluctuations in the Pacific Ocean, playing out, as the name shows, in the Indian Ocean. It is also a much weaker system than El Nino, and thus has relatively limited impacts.
But a positive IOD does have the potential to offset the impacts of El Nino to a small measure in neighbouring areas, and it has, at least once in the past (1997), delivered admirably on this potential.
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Consider the following statements regarding Indian Ocean Dipole (IOD)....
Explanation:
The Indian Ocean Dipole (IOD) is an ocean-atmosphere interaction that occurs in the Indian Ocean. It is similar to the El Nino fluctuations in the Pacific Ocean, but there are some differences between the two phenomena. Let's analyze each statement individually:
Statement 1: The IOD is an ocean-atmosphere interaction very similar to the El Nino fluctuations in the Pacific Ocean.
This statement is correct. The IOD and El Nino are both climate phenomena that involve the interaction between the ocean and the atmosphere. However, they occur in different oceans and have some distinct characteristics.
Statement 2: It is always a much stronger system than El Nino, and thus has relatively greater impacts.
This statement is incorrect. The intensity and impacts of the IOD and El Nino can vary from event to event. While some IOD events may be stronger than certain El Nino events, it is not always the case. The strength and impacts of these phenomena depend on various factors, including oceanic and atmospheric conditions.
Statement 3: A positive IOD has the potential to offset the impacts of El Nino to a small measure in neighboring areas.
This statement is correct. During a positive IOD event, the eastern Indian Ocean becomes cooler than normal, while the western Indian Ocean becomes warmer. This temperature gradient affects the atmospheric circulation and can lead to changes in rainfall patterns. In contrast, El Nino events typically bring reduced rainfall to the western Indian Ocean. Therefore, a positive IOD can partially offset the impacts of El Nino by enhancing rainfall in some neighboring areas.
Conclusion:
Out of the three given statements, only two are correct. Therefore, the correct answer is option 'B' - Only two.
The Indian Ocean Dipole (IOD) is an ocean-atmosphere interaction that occurs in the Indian Ocean. It is similar to the El Nino fluctuations in the Pacific Ocean, but there are some differences between the two phenomena. Let's analyze each statement individually:
Statement 1: The IOD is an ocean-atmosphere interaction very similar to the El Nino fluctuations in the Pacific Ocean.
This statement is correct. The IOD and El Nino are both climate phenomena that involve the interaction between the ocean and the atmosphere. However, they occur in different oceans and have some distinct characteristics.
Statement 2: It is always a much stronger system than El Nino, and thus has relatively greater impacts.
This statement is incorrect. The intensity and impacts of the IOD and El Nino can vary from event to event. While some IOD events may be stronger than certain El Nino events, it is not always the case. The strength and impacts of these phenomena depend on various factors, including oceanic and atmospheric conditions.
Statement 3: A positive IOD has the potential to offset the impacts of El Nino to a small measure in neighboring areas.
This statement is correct. During a positive IOD event, the eastern Indian Ocean becomes cooler than normal, while the western Indian Ocean becomes warmer. This temperature gradient affects the atmospheric circulation and can lead to changes in rainfall patterns. In contrast, El Nino events typically bring reduced rainfall to the western Indian Ocean. Therefore, a positive IOD can partially offset the impacts of El Nino by enhancing rainfall in some neighboring areas.
Conclusion:
Out of the three given statements, only two are correct. Therefore, the correct answer is option 'B' - Only two.
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Consider the following statements regarding Indian Ocean Dipole (IOD). The IOD is an ocean-atmosphere interaction very similar to the El Nino fluctuations in the Pacific Ocean. It is always a much stronger system than El Nino, and thus has relatively greater impacts. A positive IOD have the potential to offset the impacts of El Nino to a small measure in neighbouring areas.How many of the above statements are correct?a)Only oneb)Only twoc)All threed)NoneCorrect answer is option 'B'. Can you explain this answer?
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Consider the following statements regarding Indian Ocean Dipole (IOD). The IOD is an ocean-atmosphere interaction very similar to the El Nino fluctuations in the Pacific Ocean. It is always a much stronger system than El Nino, and thus has relatively greater impacts. A positive IOD have the potential to offset the impacts of El Nino to a small measure in neighbouring areas.How many of the above statements are correct?a)Only oneb)Only twoc)All threed)NoneCorrect answer is option 'B'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Consider the following statements regarding Indian Ocean Dipole (IOD). The IOD is an ocean-atmosphere interaction very similar to the El Nino fluctuations in the Pacific Ocean. It is always a much stronger system than El Nino, and thus has relatively greater impacts. A positive IOD have the potential to offset the impacts of El Nino to a small measure in neighbouring areas.How many of the above statements are correct?a)Only oneb)Only twoc)All threed)NoneCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements regarding Indian Ocean Dipole (IOD). The IOD is an ocean-atmosphere interaction very similar to the El Nino fluctuations in the Pacific Ocean. It is always a much stronger system than El Nino, and thus has relatively greater impacts. A positive IOD have the potential to offset the impacts of El Nino to a small measure in neighbouring areas.How many of the above statements are correct?a)Only oneb)Only twoc)All threed)NoneCorrect answer is option 'B'. Can you explain this answer?.
Consider the following statements regarding Indian Ocean Dipole (IOD). The IOD is an ocean-atmosphere interaction very similar to the El Nino fluctuations in the Pacific Ocean. It is always a much stronger system than El Nino, and thus has relatively greater impacts. A positive IOD have the potential to offset the impacts of El Nino to a small measure in neighbouring areas.How many of the above statements are correct?a)Only oneb)Only twoc)All threed)NoneCorrect answer is option 'B'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Consider the following statements regarding Indian Ocean Dipole (IOD). The IOD is an ocean-atmosphere interaction very similar to the El Nino fluctuations in the Pacific Ocean. It is always a much stronger system than El Nino, and thus has relatively greater impacts. A positive IOD have the potential to offset the impacts of El Nino to a small measure in neighbouring areas.How many of the above statements are correct?a)Only oneb)Only twoc)All threed)NoneCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements regarding Indian Ocean Dipole (IOD). The IOD is an ocean-atmosphere interaction very similar to the El Nino fluctuations in the Pacific Ocean. It is always a much stronger system than El Nino, and thus has relatively greater impacts. A positive IOD have the potential to offset the impacts of El Nino to a small measure in neighbouring areas.How many of the above statements are correct?a)Only oneb)Only twoc)All threed)NoneCorrect answer is option 'B'. Can you explain this answer?.
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