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Consider the following statements regarding Madden Julian Oscillation (MJO):
- It moves westward from the Pacific Ocean to the Indian Ocean.
- It is an equatorial traveling pattern of anomalous rainfall.
- In its active phase, MJO brings frequent cyclonic activity and can initiate the onset of the monsoon in the tropics.
Which of the statements given above is/are correct?
- a)1 and 2 only
- b)2 only
- c)2 and 3 only
- d)3 only
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
Consider the following statements regarding Madden Julian Oscillation ...
The correct answer is option C - 2 and 3 only.
Explanation:
Madden Julian Oscillation (MJO) is a large-scale atmospheric phenomenon that is characterized by an eastward and westward movement of an area of enhanced rainfall and convection in the tropics. It is an important component of the global weather and climate system.
- MJO moves westward from the Pacific Ocean to the Indian Ocean:
The MJO typically initiates over the western Pacific Ocean and moves eastward across the Pacific and Indian Oceans. It starts in the eastern hemisphere (around the Maritime Continent) and then progresses towards the western hemisphere, reaching the Indian Ocean. Therefore, statement 1 is incorrect.
- MJO is an equatorial traveling pattern of anomalous rainfall:
Statement 2 is correct. MJO is characterized by an eastward and westward movement of an area of enhanced rainfall and convection along the equator. It is often associated with anomalous rainfall patterns and atmospheric circulation changes.
- In its active phase, MJO brings frequent cyclonic activity and can initiate the onset of the monsoon in the tropics:
Statement 3 is also correct. During its active phase, the MJO can enhance the development of cyclonic activity, such as the formation of tropical cyclones. It can also trigger the onset of monsoon rainfall in the tropics, especially in regions like India and Southeast Asia. The enhanced convection associated with the MJO can lead to changes in atmospheric circulation patterns, which in turn influence the monsoon.
In conclusion, the correct statements regarding Madden Julian Oscillation (MJO) are:
- It is an equatorial traveling pattern of anomalous rainfall.
- In its active phase, MJO brings frequent cyclonic activity and can initiate the onset of the monsoon in the tropics.
Explanation:
Madden Julian Oscillation (MJO) is a large-scale atmospheric phenomenon that is characterized by an eastward and westward movement of an area of enhanced rainfall and convection in the tropics. It is an important component of the global weather and climate system.
- MJO moves westward from the Pacific Ocean to the Indian Ocean:
The MJO typically initiates over the western Pacific Ocean and moves eastward across the Pacific and Indian Oceans. It starts in the eastern hemisphere (around the Maritime Continent) and then progresses towards the western hemisphere, reaching the Indian Ocean. Therefore, statement 1 is incorrect.
- MJO is an equatorial traveling pattern of anomalous rainfall:
Statement 2 is correct. MJO is characterized by an eastward and westward movement of an area of enhanced rainfall and convection along the equator. It is often associated with anomalous rainfall patterns and atmospheric circulation changes.
- In its active phase, MJO brings frequent cyclonic activity and can initiate the onset of the monsoon in the tropics:
Statement 3 is also correct. During its active phase, the MJO can enhance the development of cyclonic activity, such as the formation of tropical cyclones. It can also trigger the onset of monsoon rainfall in the tropics, especially in regions like India and Southeast Asia. The enhanced convection associated with the MJO can lead to changes in atmospheric circulation patterns, which in turn influence the monsoon.
In conclusion, the correct statements regarding Madden Julian Oscillation (MJO) are:
- It is an equatorial traveling pattern of anomalous rainfall.
- In its active phase, MJO brings frequent cyclonic activity and can initiate the onset of the monsoon in the tropics.
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Community Answer
Consider the following statements regarding Madden Julian Oscillation ...
- The Madden Julian Oscillation (MJO) is one of the most important atmosphere-ocean coupled phenomena in the tropics, which has a profound influence on the Indian Summer Monsoon.
- The MJO is the leading mode of tropical intra-seasonal climate variability and is characterized by the organization on a global spatial scale with a period typically ranging from 30-60 days, which was discovered by Madden and Julian in 1971 in a published paper.
- MJO is a massive weather event consisting of deep convection coupled with atmospheric circulation, moving slowly eastward over the Indian and Pacific Oceans. Hence statement 1 is not correct.
- MJO is an equatorial traveling pattern of anomalous rainfall that is planetary in scale. Hence statement 2 is correct.
- The MJO consists of two parts, or phases: one is the enhanced rainfall (or convective) phase and the other is the suppressed rainfall phase.
- As it moves, strong MJO activity often splits the planet in to two — one in which the MJO is in active phase and brings rainfall, and the other in which it suppresses rainfall.
- In the active phase, MJO results in more than average rainfall for that time of the year, while in the suppressed phase, the area receives less than average rainfall.
- The effect of the MJO is witnessed mainly in the tropical region, in the band between 30degrees North and 30 degrees South of the equator, even though the mid-latitude regions in both hemispheres also feel its impact.
- In the tropics, MJO in its active phase brings frequent cyclonic activity, and can initiate the onset of the monsoon. Hence statement 3 is correct.
- It causes one or two weeks of intense rainfall, as was witnessed in India in June.
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Consider the following statements regarding Madden Julian Oscillation (MJO): It moves westward from the Pacific Ocean to the Indian Ocean. It is an equatorial traveling pattern of anomalous rainfall. In its active phase, MJO brings frequent cyclonic activity and can initiate the onset of the monsoon in the tropics.Which of the statements given above is/are correct?a)1 and 2 onlyb)2 onlyc)2 and 3 onlyd)3 onlyCorrect answer is option 'C'. Can you explain this answer?
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Consider the following statements regarding Madden Julian Oscillation (MJO): It moves westward from the Pacific Ocean to the Indian Ocean. It is an equatorial traveling pattern of anomalous rainfall. In its active phase, MJO brings frequent cyclonic activity and can initiate the onset of the monsoon in the tropics.Which of the statements given above is/are correct?a)1 and 2 onlyb)2 onlyc)2 and 3 onlyd)3 onlyCorrect answer is option 'C'. Can you explain this answer? for UPSC 2024 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 Madden Julian Oscillation (MJO): It moves westward from the Pacific Ocean to the Indian Ocean. It is an equatorial traveling pattern of anomalous rainfall. In its active phase, MJO brings frequent cyclonic activity and can initiate the onset of the monsoon in the tropics.Which of the statements given above is/are correct?a)1 and 2 onlyb)2 onlyc)2 and 3 onlyd)3 onlyCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements regarding Madden Julian Oscillation (MJO): It moves westward from the Pacific Ocean to the Indian Ocean. It is an equatorial traveling pattern of anomalous rainfall. In its active phase, MJO brings frequent cyclonic activity and can initiate the onset of the monsoon in the tropics.Which of the statements given above is/are correct?a)1 and 2 onlyb)2 onlyc)2 and 3 onlyd)3 onlyCorrect answer is option 'C'. Can you explain this answer?.
Consider the following statements regarding Madden Julian Oscillation (MJO): It moves westward from the Pacific Ocean to the Indian Ocean. It is an equatorial traveling pattern of anomalous rainfall. In its active phase, MJO brings frequent cyclonic activity and can initiate the onset of the monsoon in the tropics.Which of the statements given above is/are correct?a)1 and 2 onlyb)2 onlyc)2 and 3 onlyd)3 onlyCorrect answer is option 'C'. Can you explain this answer? for UPSC 2024 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 Madden Julian Oscillation (MJO): It moves westward from the Pacific Ocean to the Indian Ocean. It is an equatorial traveling pattern of anomalous rainfall. In its active phase, MJO brings frequent cyclonic activity and can initiate the onset of the monsoon in the tropics.Which of the statements given above is/are correct?a)1 and 2 onlyb)2 onlyc)2 and 3 onlyd)3 onlyCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements regarding Madden Julian Oscillation (MJO): It moves westward from the Pacific Ocean to the Indian Ocean. It is an equatorial traveling pattern of anomalous rainfall. In its active phase, MJO brings frequent cyclonic activity and can initiate the onset of the monsoon in the tropics.Which of the statements given above is/are correct?a)1 and 2 onlyb)2 onlyc)2 and 3 onlyd)3 onlyCorrect answer is option 'C'. Can you explain this answer?.
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