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With reference to Western Disturbance, consider the following statements :
1. An increase in the prevailing night temperature indicates the arrival of the Western disturbance.
2. Western disturbance is an area of low pressure.
3. Western disturbance enters India using the help of the Westerly jet stream.
Which of the above statements is/are correct ?
- a)1 only
- b)2 and 3 only
- c)3 only
- d)1, 2 and 3
Correct answer is option 'D'. Can you explain this answer?
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Most Upvoted Answer
With reference to Western Disturbance, consider the following statemen...
Explanation:
1. Increase in night temperature:
- An increase in the prevailing night temperature indicates the arrival of the Western disturbance.
- This is because the warm air associated with the disturbance leads to a rise in night temperatures.
2. Western Disturbance as an area of low pressure:
- Western disturbance is actually an extratropical storm originating in the Mediterranean region that brings sudden winter rain and snow to the northwestern parts of the Indian subcontinent.
- It is not just an area of low pressure but a weather system that affects the weather in the region.
3. Western Disturbance entering India using the Westerly jet stream:
- Western disturbances enter India from the West, using the Westerly jet stream.
- The Westerly jet stream is a fast-flowing, narrow air current found in the upper levels of the atmosphere that helps in the movement of Western disturbances towards India.
Therefore, all three statements are correct in relation to the Western disturbance. It is important to understand the characteristics and behavior of Western disturbances as they play a crucial role in the weather patterns of the Indian subcontinent, particularly during the winter months.
1. Increase in night temperature:
- An increase in the prevailing night temperature indicates the arrival of the Western disturbance.
- This is because the warm air associated with the disturbance leads to a rise in night temperatures.
2. Western Disturbance as an area of low pressure:
- Western disturbance is actually an extratropical storm originating in the Mediterranean region that brings sudden winter rain and snow to the northwestern parts of the Indian subcontinent.
- It is not just an area of low pressure but a weather system that affects the weather in the region.
3. Western Disturbance entering India using the Westerly jet stream:
- Western disturbances enter India from the West, using the Westerly jet stream.
- The Westerly jet stream is a fast-flowing, narrow air current found in the upper levels of the atmosphere that helps in the movement of Western disturbances towards India.
Therefore, all three statements are correct in relation to the Western disturbance. It is important to understand the characteristics and behavior of Western disturbances as they play a crucial role in the weather patterns of the Indian subcontinent, particularly during the winter months.
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With reference to Western Disturbance, consider the following statemen...
The clouding associated with the WD leads to a rise in minimum temperature in North-Western parts of India. This is because of cloud cover associated with Western Disturbance. The cloud cover traps the outgoing long-wave radiation making nights warmer. So, Statement 1 is correct. Western Disturbances are extra-tropical cyclones that form over the Caspian Sea or the Mediterranean Sea in the west. Western Disturbance is a low-pressure area that usually forms north of 20°N, causing changes in pressure, wind pattern and temperature fields. They usually occur with a cloudy sky, higher night temperatures and unusual rain. So, Statement 2 is correct.
A sub-Tropical Jet stream (STJ), also known as a Westerly Jet stream, is a narrow band of fast-moving air flowing from west to east. STJ in the northern hemisphere flows between 25° to 35° N in the upper troposphere at a height of about 12-14 km. Western Disturbance gradually travels across the middle-east from Iran, Afghanistan and Pakistan under the influence of subtropical westerly jet streams and causes rainfall in the winter season. So, Statement 3 is correct.
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With reference to Western Disturbance, consider the following statements :1. An increase in the prevailing night temperature indicates the arrival of the Western disturbance.2. Western disturbance is an area of low pressure.3. Western disturbance enters India using the help of the Westerly jet stream.Which of the above statements is/are correct ?a)1 onlyb)2 and 3 onlyc)3 onlyd)1, 2 and 3Correct answer is option 'D'. Can you explain this answer?
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