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With respect to Madden Julian Oscillation, consider the following statements:
It is an eastward-moving fluctuation of clouds, rainfall, winds and pressure near the equator.
It brings good rainfall over the Indian subcontinent when it is over the Indian Ocean during Monsoon season.
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 respect to Madden Julian Oscillation, consider the following sta...
With respect to the Madden Julian Oscillation (MJO), the correct statements are:
1) It is an eastward-moving fluctuation of clouds, rainfall, winds and pressure near the equator.
2) It brings good rainfall over the Indian subcontinent when it is over the Indian Ocean during Monsoon season.
Explanation:
Madden Julian Oscillation (MJO):
The Madden Julian Oscillation (MJO) is a tropical atmospheric phenomenon characterized by eastward-moving fluctuations of clouds, rainfall, winds, and pressure near the equator. It is named after Roland Madden and Paul Julian, who first identified this phenomenon in the early 1970s.
Characteristics of MJO:
- The MJO is an eastward-moving disturbance that circles the globe along the equator, typically taking 30 to 60 days to complete one cycle.
- It is characterized by a large-scale pattern of atmospheric circulation that affects weather and climate in the tropics and beyond.
- The MJO influences the timing and intensity of monsoons, tropical cyclones, and weather patterns across different regions of the world.
Impact on Indian Subcontinent:
When the MJO is over the Indian Ocean during the Monsoon season, it brings good rainfall to the Indian subcontinent. The MJO enhances the monsoon circulation and moisture transport, leading to increased rainfall over the region. This is particularly important for agriculture and water resources in India, as the monsoon season is crucial for the country's economy and food security.
The MJO's influence on the Indian subcontinent's rainfall is observed through its impact on the Indian Ocean Dipole (IOD) and El Niño Southern Oscillation (ENSO). The MJO can modulate these larger-scale climate patterns, leading to variations in monsoon rainfall over India.
Conclusion:
In conclusion, the correct statements regarding the Madden Julian Oscillation (MJO) are that it is an eastward-moving fluctuation of clouds, rainfall, winds, and pressure near the equator, and it brings good rainfall over the Indian subcontinent when it is over the Indian Ocean during the Monsoon season. The MJO's influence on the Indian subcontinent's rainfall is significant, impacting agriculture, water resources, and the overall economy of the region.
1) It is an eastward-moving fluctuation of clouds, rainfall, winds and pressure near the equator.
2) It brings good rainfall over the Indian subcontinent when it is over the Indian Ocean during Monsoon season.
Explanation:
Madden Julian Oscillation (MJO):
The Madden Julian Oscillation (MJO) is a tropical atmospheric phenomenon characterized by eastward-moving fluctuations of clouds, rainfall, winds, and pressure near the equator. It is named after Roland Madden and Paul Julian, who first identified this phenomenon in the early 1970s.
Characteristics of MJO:
- The MJO is an eastward-moving disturbance that circles the globe along the equator, typically taking 30 to 60 days to complete one cycle.
- It is characterized by a large-scale pattern of atmospheric circulation that affects weather and climate in the tropics and beyond.
- The MJO influences the timing and intensity of monsoons, tropical cyclones, and weather patterns across different regions of the world.
Impact on Indian Subcontinent:
When the MJO is over the Indian Ocean during the Monsoon season, it brings good rainfall to the Indian subcontinent. The MJO enhances the monsoon circulation and moisture transport, leading to increased rainfall over the region. This is particularly important for agriculture and water resources in India, as the monsoon season is crucial for the country's economy and food security.
The MJO's influence on the Indian subcontinent's rainfall is observed through its impact on the Indian Ocean Dipole (IOD) and El Niño Southern Oscillation (ENSO). The MJO can modulate these larger-scale climate patterns, leading to variations in monsoon rainfall over India.
Conclusion:
In conclusion, the correct statements regarding the Madden Julian Oscillation (MJO) are that it is an eastward-moving fluctuation of clouds, rainfall, winds, and pressure near the equator, and it brings good rainfall over the Indian subcontinent when it is over the Indian Ocean during the Monsoon season. The MJO's influence on the Indian subcontinent's rainfall is significant, impacting agriculture, water resources, and the overall economy of the region.
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Community Answer
With respect to Madden Julian Oscillation, consider the following sta...
Madden Julian Oscillation (MJO):
- The Madden Julian Oscillation (MJO) is one of the most important atmosphere-ocean coupled phenomena in the tropics, which has profound influence on the Indian Summer Monsoon.
- The MJO can be defined as an eastward moving 'pulse' of clouds, rainfall, winds and pressure near the equator that typically recurs every 30 to 60 days. Hence, statement 1 is correct.
- The MJO is the leading mode of tropical intra-seasonal climate variability and is characterized by organization on a global spatial scale with a period typically ranging between 30-60 days.
- When Madden Julian Oscillation is over Indian Ocean during Monsoon season, it brings good rainfall over the Indian subcontinent. Hence, statement 2 is correct.
- On the other hand, when it witnesses a longer cycle and stays over the Pacific Ocean, MJO brings bad news for the Indian Monsoon. It is linked with enhanced and suppressed rainfall activity in the tropics and is very important for the Indian monsoonal rainfall.
It has the following characteristics:
- MJO is a massive weather event consisting of deep convection coupled with atmospheric circulation, moving slowly eastward over the Indian and Pacific Oceans.
- MJO is an equatorial traveling pattern of anomalous rainfall that is planetary in scale.
- Each cycle lasts approximately 30–60 days. Also known as the 30-60 day oscillation, 30-60 day wave, or intra-seasonal oscillation (ISO).
- The MJO involves variations in wind, sea surface temperature (SST), cloudiness, and rainfall. Based on the place of convective activity the period of MJO is divided into 1-8 phases with each phase roughly last for 7 to 8 days.
- Since the MJO is the most important mode of tropical intra-seasonal variability with potentially important influences on monsoon activity in the Asian regions on extended range time scale (beyond 7 days to one month), the capability of statistical or numerical models in capturing MJO signal is very crucial in capturing the active/break cycle of monsoon.
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With respect to Madden Julian Oscillation, consider the following statements: It is an eastward-moving fluctuation of clouds, rainfall, winds and pressure near the equator. It brings good rainfall over the Indian subcontinent when it is over the Indian Ocean during Monsoon season. 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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