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With respect to the Indian Ocean Dipole (IOD)’, consider the following statements:
- The IOD measures the differences in the sea surface temperatures between the northern and the southern parts of the Indian Ocean.
- Negative IOD event is known to bring floods to eastern Africa, and droughts and bushfires to eastern Asia and Australia.
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 'D'. Can you explain this answer?
Verified Answer
With respect to the Indian Ocean Dipole (IOD)’, consider the fol...
The Indian Ocean Dipole (IOD) measures the differences in the sea surface temperatures between the western and the eastern parts of the Indian Ocean. It is basically like the El Nino weather system that develops in the Pacific Ocean. It is characterized by an irregular oscillation of sea-surface temperatures in the eastern and the western Indian Ocean impact on the weather patterns. The IOD alters the wind, temperature and rainfall patterns in the Indian Ocean region.
- Positive IOD event is known to bring floods to eastern Africa, and droughts and bushfires to eastern Asia and Australia. Example: 2020 Australian bushfires.
- Positive IOD is known to increase the intensity of the monsoon in the sub- continent and leads to above normal rainfall. A simultaneous occurrence of Positive IOD and El Nino balances the negative impact of El Nino on the Indian monsoon rainfall. Example: Above normal rainfall in India in 2019.
- In contrast, Negative IOD, coupled with El - Nino, leads to poor monsoon rainfall. Example: Deficient rainfall in 1992.
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Most Upvoted Answer
With respect to the Indian Ocean Dipole (IOD)’, consider the fol...
Indian Ocean Dipole (IOD)
Statement 1: The IOD measures the differences in the sea surface temperatures between the northern and the southern parts of the Indian Ocean.
- This statement is incorrect. The Indian Ocean Dipole (IOD) is a climate phenomenon characterized by the difference in sea surface temperatures between two areas - a western pole near the Arabian Sea and an eastern pole in the western Indian Ocean. It is not specifically about the differences between the northern and southern parts of the Indian Ocean.
Statement 2: Negative IOD event is known to bring floods to eastern Africa, and droughts and bushfires to eastern Asia and Australia.
- This statement is correct. A negative IOD event occurs when warmer sea temperatures are recorded in the western Indian Ocean and cooler temperatures in the eastern Indian Ocean. This can lead to increased rainfall and flooding in eastern Africa, while causing droughts and bushfires in eastern Asia and Australia.
Therefore, the correct answer is option D) Neither 1 nor 2 as statement 1 is incorrect and statement 2 is correct.
Statement 1: The IOD measures the differences in the sea surface temperatures between the northern and the southern parts of the Indian Ocean.
- This statement is incorrect. The Indian Ocean Dipole (IOD) is a climate phenomenon characterized by the difference in sea surface temperatures between two areas - a western pole near the Arabian Sea and an eastern pole in the western Indian Ocean. It is not specifically about the differences between the northern and southern parts of the Indian Ocean.
Statement 2: Negative IOD event is known to bring floods to eastern Africa, and droughts and bushfires to eastern Asia and Australia.
- This statement is correct. A negative IOD event occurs when warmer sea temperatures are recorded in the western Indian Ocean and cooler temperatures in the eastern Indian Ocean. This can lead to increased rainfall and flooding in eastern Africa, while causing droughts and bushfires in eastern Asia and Australia.
Therefore, the correct answer is option D) Neither 1 nor 2 as statement 1 is incorrect and statement 2 is correct.
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With respect to the Indian Ocean Dipole (IOD)’, consider the following statements: The IOD measures the differences in the sea surface temperatures between the northern and the southern parts of the Indian Ocean. Negative IOD event is known to bring floods to eastern Africa, and droughts and bushfires to eastern Asia and Australia.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 'D'. Can you explain this answer?
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With respect to the Indian Ocean Dipole (IOD)’, consider the following statements: The IOD measures the differences in the sea surface temperatures between the northern and the southern parts of the Indian Ocean. Negative IOD event is known to bring floods to eastern Africa, and droughts and bushfires to eastern Asia and Australia.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 'D'. 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 With respect to the Indian Ocean Dipole (IOD)’, consider the following statements: The IOD measures the differences in the sea surface temperatures between the northern and the southern parts of the Indian Ocean. Negative IOD event is known to bring floods to eastern Africa, and droughts and bushfires to eastern Asia and Australia.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 'D'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for With respect to the Indian Ocean Dipole (IOD)’, consider the following statements: The IOD measures the differences in the sea surface temperatures between the northern and the southern parts of the Indian Ocean. Negative IOD event is known to bring floods to eastern Africa, and droughts and bushfires to eastern Asia and Australia.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 'D'. Can you explain this answer?.
With respect to the Indian Ocean Dipole (IOD)’, consider the following statements: The IOD measures the differences in the sea surface temperatures between the northern and the southern parts of the Indian Ocean. Negative IOD event is known to bring floods to eastern Africa, and droughts and bushfires to eastern Asia and Australia.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 'D'. 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 With respect to the Indian Ocean Dipole (IOD)’, consider the following statements: The IOD measures the differences in the sea surface temperatures between the northern and the southern parts of the Indian Ocean. Negative IOD event is known to bring floods to eastern Africa, and droughts and bushfires to eastern Asia and Australia.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 'D'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for With respect to the Indian Ocean Dipole (IOD)’, consider the following statements: The IOD measures the differences in the sea surface temperatures between the northern and the southern parts of the Indian Ocean. Negative IOD event is known to bring floods to eastern Africa, and droughts and bushfires to eastern Asia and Australia.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 'D'. Can you explain this answer?.
Solutions for With respect to the Indian Ocean Dipole (IOD)’, consider the following statements: The IOD measures the differences in the sea surface temperatures between the northern and the southern parts of the Indian Ocean. Negative IOD event is known to bring floods to eastern Africa, and droughts and bushfires to eastern Asia and Australia.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 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for UPSC.
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