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With reference to 'Indian Ocean Dipole (IOD)' sometimes mentioned in the news while forecasting Indian monsoon, which of the following statements is/are correct?
1. IOD phenomenon is characterised by a difference in sea surface temperature between tropical Western Indian Ocean and tropical Eastern Pacific Ocean.
2. An IOD phenomenon can influence an El Nino's impact on the monsoon.
Select the correct answer using the code given below:
1. IOD phenomenon is characterised by a difference in sea surface temperature between tropical Western Indian Ocean and tropical Eastern Pacific Ocean.
2. An IOD phenomenon can influence an El Nino's impact on the monsoon.
Select the correct answer using the code given below:
- a)1 only
- b)2 only
- c)Both 1 and 2
- d)Neither 1 nor 2
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
With reference to 'Indian Ocean Dipole (IOD)' sometimes mentio...
Statement 1 is not correct: The Indian Ocean Dipole is an irregular oscillation of sea-surface temperatures in which the western Indian Ocean becomes alternately warmer and then colder than the eastern part of the ocean.
Statement 2 is correct: an IOD can either aggravate or weaken the impact of El Nino on Indian monsoon. If there is a positive IOD, it can bring good rains to India despite of an El Nino year.
Statement 2 is correct: an IOD can either aggravate or weaken the impact of El Nino on Indian monsoon. If there is a positive IOD, it can bring good rains to India despite of an El Nino year.
Most Upvoted Answer
With reference to 'Indian Ocean Dipole (IOD)' sometimes mentio...
Indian Ocean Dipole (IOD) and its relation with Indian monsoon:
• Indian Ocean Dipole (IOD) is an irregular oscillation of sea-surface temperatures in which the western Indian Ocean becomes alternately warmer and then colder than the eastern part of the ocean.
• IOD is characterized by a difference in sea surface temperature between the tropical western Indian Ocean and the tropical eastern Pacific Ocean.
• The IOD phenomenon has a significant impact on the climate of the Indian Subcontinent.
• An IOD event can influence the El Nino impact on the Indian monsoon.
• During an IOD-positive event, the sea surface temperatures of the western Indian Ocean are higher than those of the eastern Indian Ocean. This leads to the formation of a low-pressure area over the western Indian Ocean, which attracts moisture-laden winds from the Indian Ocean towards the Indian subcontinent.
• An IOD-negative event is characterized by higher sea surface temperatures in the eastern Indian Ocean, leading to the formation of a low-pressure area in that region. This leads to a decrease in moisture-laden winds towards the Indian subcontinent, leading to a deficit in monsoon rainfall.
• An IOD event can also affect the strength and timing of the Indian monsoon.
• However, while IOD is an important factor in influencing the Indian monsoon, it is not the only factor. Other factors such as the El Nino Southern Oscillation (ENSO), the Madden-Julian Oscillation (MJO), and the Indian Ocean Basin Dipole (IOBD) also play a significant role in determining the strength and timing of the Indian monsoon.
Therefore, the correct answer is option 'B' - 2 only.
• Indian Ocean Dipole (IOD) is an irregular oscillation of sea-surface temperatures in which the western Indian Ocean becomes alternately warmer and then colder than the eastern part of the ocean.
• IOD is characterized by a difference in sea surface temperature between the tropical western Indian Ocean and the tropical eastern Pacific Ocean.
• The IOD phenomenon has a significant impact on the climate of the Indian Subcontinent.
• An IOD event can influence the El Nino impact on the Indian monsoon.
• During an IOD-positive event, the sea surface temperatures of the western Indian Ocean are higher than those of the eastern Indian Ocean. This leads to the formation of a low-pressure area over the western Indian Ocean, which attracts moisture-laden winds from the Indian Ocean towards the Indian subcontinent.
• An IOD-negative event is characterized by higher sea surface temperatures in the eastern Indian Ocean, leading to the formation of a low-pressure area in that region. This leads to a decrease in moisture-laden winds towards the Indian subcontinent, leading to a deficit in monsoon rainfall.
• An IOD event can also affect the strength and timing of the Indian monsoon.
• However, while IOD is an important factor in influencing the Indian monsoon, it is not the only factor. Other factors such as the El Nino Southern Oscillation (ENSO), the Madden-Julian Oscillation (MJO), and the Indian Ocean Basin Dipole (IOBD) also play a significant role in determining the strength and timing of the Indian monsoon.
Therefore, the correct answer is option 'B' - 2 only.
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With reference to 'Indian Ocean Dipole (IOD)' sometimes mentioned in the news while forecasting Indian monsoon, which of the following statements is/are correct?1. IOD phenomenon is characterised by a difference in sea surface temperature between tropical Western Indian Ocean and tropical Eastern Pacific Ocean.2. An IOD phenomenon can influence an El Nino's impact on the monsoon.Select the correct answer using the code given below:a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'B'. Can you explain this answer?
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With reference to 'Indian Ocean Dipole (IOD)' sometimes mentioned in the news while forecasting Indian monsoon, which of the following statements is/are correct?1. IOD phenomenon is characterised by a difference in sea surface temperature between tropical Western Indian Ocean and tropical Eastern Pacific Ocean.2. An IOD phenomenon can influence an El Nino's impact on the monsoon.Select the correct answer using the code given below:a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct 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 With reference to 'Indian Ocean Dipole (IOD)' sometimes mentioned in the news while forecasting Indian monsoon, which of the following statements is/are correct?1. IOD phenomenon is characterised by a difference in sea surface temperature between tropical Western Indian Ocean and tropical Eastern Pacific Ocean.2. An IOD phenomenon can influence an El Nino's impact on the monsoon.Select the correct answer using the code given below:a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct 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 With reference to 'Indian Ocean Dipole (IOD)' sometimes mentioned in the news while forecasting Indian monsoon, which of the following statements is/are correct?1. IOD phenomenon is characterised by a difference in sea surface temperature between tropical Western Indian Ocean and tropical Eastern Pacific Ocean.2. An IOD phenomenon can influence an El Nino's impact on the monsoon.Select the correct answer using the code given below:a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'B'. Can you explain this answer?.
With reference to 'Indian Ocean Dipole (IOD)' sometimes mentioned in the news while forecasting Indian monsoon, which of the following statements is/are correct?1. IOD phenomenon is characterised by a difference in sea surface temperature between tropical Western Indian Ocean and tropical Eastern Pacific Ocean.2. An IOD phenomenon can influence an El Nino's impact on the monsoon.Select the correct answer using the code given below:a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct 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 With reference to 'Indian Ocean Dipole (IOD)' sometimes mentioned in the news while forecasting Indian monsoon, which of the following statements is/are correct?1. IOD phenomenon is characterised by a difference in sea surface temperature between tropical Western Indian Ocean and tropical Eastern Pacific Ocean.2. An IOD phenomenon can influence an El Nino's impact on the monsoon.Select the correct answer using the code given below:a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct 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 With reference to 'Indian Ocean Dipole (IOD)' sometimes mentioned in the news while forecasting Indian monsoon, which of the following statements is/are correct?1. IOD phenomenon is characterised by a difference in sea surface temperature between tropical Western Indian Ocean and tropical Eastern Pacific Ocean.2. An IOD phenomenon can influence an El Nino's impact on the monsoon.Select the correct answer using the code given below:a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'B'. Can you explain this answer?.
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