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Consider the following statements regarding Jet Streams:
1. Jet streams are stronger in winters for both the northern and southern hemispheres.
2. Speed of jet streams gradually increases from its central core towards the outer boundary.
3. Jet streams move along with the apparent latitudinal movement of the sun.
1. Jet streams are stronger in winters for both the northern and southern hemispheres.
2. Speed of jet streams gradually increases from its central core towards the outer boundary.
3. Jet streams move along with the apparent latitudinal movement of the sun.
Which of the statements given above is/are correct?
- a)1 only
- b)2 and 3 only
- c)1 and 3 only
- d)1, 2 and 3
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
Consider the following statements regarding Jet Streams:1. Jet streams...
- Jet streams are relatively narrow bands of strong wind in the upper levels of the atmosphere. The winds blow from west to east in jet streams but the flow often shifts to the north and south. Jet streams follow the boundaries between hot and cold air.
- Since these hot and cold air boundaries are most pronounced in winter, jet streams are the strongest for both the northern and southern hemisphere winters. Hence, statement 1 is correct.
- The actual appearance of jet streams results from the complex interaction between many variables - such as the location of high and low-pressure systems, warm and cold air, and seasonal changes. They meander around the globe, dipping and rising in altitude/latitude, splitting at times and forming eddies, and even disappearing altogether to appear somewhere else.
- Jet streams are often indicated by a line on a weather map indicating the location of the strongest wind. However, jet streams are wider and not as distinct as a single line but are actually regions where the wind speed increases toward a central core of greatest strength. Hence, statement 2 is not correct.
- One way of visualizing this is to consider a river. The river's current is generally the strongest in the center with decreasing strength as one approaches the river's bank. Therefore, it is said that jet streams are "rivers of air".
- Jet streams also "follow the sun" in that as the sun's elevation increases each day in the spring, the average latitude of the jet stream shifts poleward. With summer approaching in Northern Hemisphere, jet streams gradually keep shifting northwards. As Autumn approaches and the sun's elevation decreases, the jet stream's average latitude moves toward the equator. Hence, statement 3 is correct.
Most Upvoted Answer
Consider the following statements regarding Jet Streams:1. Jet streams...
1. Stronger in winters:
Jet streams are indeed stronger in winters for both the northern and southern hemispheres. This is due to the temperature difference between the equator and the poles being more pronounced during this season, which results in stronger pressure gradients and faster winds in the upper atmosphere.
2. Speed gradient:
The statement that the speed of jet streams gradually increases from its central core towards the outer boundary is incorrect. In reality, jet streams have a well-defined core of maximum wind speeds, with the speed decreasing as you move away from this core. This core region is where the winds are the strongest and most concentrated.
3. Movement with sun's apparent latitudinal movement:
Jet streams do not move along with the apparent latitudinal movement of the sun. Instead, they are driven by the temperature gradient between the equator and the poles, known as the thermal wind. This gradient creates the strong, high-altitude winds that we observe as jet streams. The position and strength of jet streams can vary due to factors such as the seasons, topography, and other atmospheric conditions.
Therefore, the correct statement among the given options is 1 and 3 only, as jet streams are stronger in winters and are not directly related to the sun's latitudinal movement.
Jet streams are indeed stronger in winters for both the northern and southern hemispheres. This is due to the temperature difference between the equator and the poles being more pronounced during this season, which results in stronger pressure gradients and faster winds in the upper atmosphere.
2. Speed gradient:
The statement that the speed of jet streams gradually increases from its central core towards the outer boundary is incorrect. In reality, jet streams have a well-defined core of maximum wind speeds, with the speed decreasing as you move away from this core. This core region is where the winds are the strongest and most concentrated.
3. Movement with sun's apparent latitudinal movement:
Jet streams do not move along with the apparent latitudinal movement of the sun. Instead, they are driven by the temperature gradient between the equator and the poles, known as the thermal wind. This gradient creates the strong, high-altitude winds that we observe as jet streams. The position and strength of jet streams can vary due to factors such as the seasons, topography, and other atmospheric conditions.
Therefore, the correct statement among the given options is 1 and 3 only, as jet streams are stronger in winters and are not directly related to the sun's latitudinal movement.
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Consider the following statements regarding Jet Streams:1. Jet streams are stronger in winters for both the northern and southern hemispheres.2. Speed of jet streams gradually increases from its central core towards the outer boundary.3. Jet streams move along with the apparent latitudinal movement of the sun.Which of the statements given above is/are correct?a)1 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'C'. Can you explain this answer?
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Consider the following statements regarding Jet Streams:1. Jet streams are stronger in winters for both the northern and southern hemispheres.2. Speed of jet streams gradually increases from its central core towards the outer boundary.3. Jet streams move along with the apparent latitudinal movement of the sun.Which of the statements given above is/are correct?a)1 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct 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 Jet Streams:1. Jet streams are stronger in winters for both the northern and southern hemispheres.2. Speed of jet streams gradually increases from its central core towards the outer boundary.3. Jet streams move along with the apparent latitudinal movement of the sun.Which of the statements given above is/are correct?a)1 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct 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 Jet Streams:1. Jet streams are stronger in winters for both the northern and southern hemispheres.2. Speed of jet streams gradually increases from its central core towards the outer boundary.3. Jet streams move along with the apparent latitudinal movement of the sun.Which of the statements given above is/are correct?a)1 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'C'. Can you explain this answer?.
Consider the following statements regarding Jet Streams:1. Jet streams are stronger in winters for both the northern and southern hemispheres.2. Speed of jet streams gradually increases from its central core towards the outer boundary.3. Jet streams move along with the apparent latitudinal movement of the sun.Which of the statements given above is/are correct?a)1 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct 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 Jet Streams:1. Jet streams are stronger in winters for both the northern and southern hemispheres.2. Speed of jet streams gradually increases from its central core towards the outer boundary.3. Jet streams move along with the apparent latitudinal movement of the sun.Which of the statements given above is/are correct?a)1 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct 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 Jet Streams:1. Jet streams are stronger in winters for both the northern and southern hemispheres.2. Speed of jet streams gradually increases from its central core towards the outer boundary.3. Jet streams move along with the apparent latitudinal movement of the sun.Which of the statements given above is/are correct?a)1 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'C'. Can you explain this answer?.
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ample number of questions to practice Consider the following statements regarding Jet Streams:1. Jet streams are stronger in winters for both the northern and southern hemispheres.2. Speed of jet streams gradually increases from its central core towards the outer boundary.3. Jet streams move along with the apparent latitudinal movement of the sun.Which of the statements given above is/are correct?a)1 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'C'. Can you explain this answer? tests, examples and also practice UPSC tests.
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