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Tropical cyclones are not formed near the equator because of
- a)High temperature near the equator
- b)The coriolis force is absent near the equator
- c)Convergence of trade winds retards the formation of tropical cyclone
- d)The presence of doldrums near the equator
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Tropical cyclones are not formed near the equator because ofa)High tem...
- Conditions favourable for tropical cyclones:
(i) Sea surface temperature (26.5 degrees) o Sufficient Coriolis force o Low-level positive vorticity o Weak vertical wind shear of horizontal winds o Large convective instability
(ii) Low-level convergence of the winds o Huge supply of moisture from the sea surface. - Among them everything has to be satisfied, then only the cyclone will form. But, near the equatorial region, all conditions are almost available excluding Coriolis force. The rotation of the earth about its axis affects the direction of the wind and this force is called the Coriolis force. It deflects the wind to the left direction in the southern hemisphere and the right direction in the northern hemisphere.
- In low-pressure areas, within the tropics, when the Coriolis force acts perpendicular to the pressure gradient force (change of pressure with respect to distance), the wind blows around it and gets intensified to form tropical cyclones.
- But, at the equator, the angle of latitude is zero, so the Coriolis force is also zero. As there is no Coriolis force to deflect, the winds blow perpendicular to the isobars and the low pressure gets filled directly.
- There is no scope for cyclical movement of the wind, so no intensification of the accumulated winds. Hence there cannot be a tropical cyclone at the equator although all other ingredients are present.
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Tropical cyclones are not formed near the equator because ofa)High tem...
Explanation:
Tropical cyclones, also known as hurricanes or typhoons, are intense weather systems that form over warm ocean waters in the tropics. However, they do not form near the equator, which is the imaginary line encircling Earth's midsection.
Reasons why tropical cyclones do not form near the equator:
1. Absence of Coriolis force:
The Coriolis force is an apparent force that causes moving objects to deflect to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. This force is caused by Earth's rotation. Near the equator, the Coriolis force is weak or absent, which makes it difficult for cyclones to form and intensify.
2. Weak convergence of trade winds:
The trade winds are the prevailing easterly winds that blow towards the equator in the tropics. These winds converge near the equator, but the convergence zone is weak and unstable. This means that there is not enough rising warm air to create the low-pressure conditions necessary for a cyclone to form.
3. Presence of doldrums:
The doldrums are a region near the equator where the trade winds converge and there is very little wind. This area is also known as the Intertropical Convergence Zone (ITCZ). The doldrums are not conducive to the formation of cyclones because there is not enough wind to spin the storm.
Conclusion:
In conclusion, the absence of Coriolis force, weak convergence of trade winds, and the presence of doldrums near the equator are the main reasons why tropical cyclones do not form in this region. However, once a cyclone forms outside the equator, it can move towards the equator if it is strong enough, but it will weaken due to the lack of favorable conditions.
Tropical cyclones, also known as hurricanes or typhoons, are intense weather systems that form over warm ocean waters in the tropics. However, they do not form near the equator, which is the imaginary line encircling Earth's midsection.
Reasons why tropical cyclones do not form near the equator:
1. Absence of Coriolis force:
The Coriolis force is an apparent force that causes moving objects to deflect to the right in the Northern Hemisphere and to the left in the Southern Hemisphere. This force is caused by Earth's rotation. Near the equator, the Coriolis force is weak or absent, which makes it difficult for cyclones to form and intensify.
2. Weak convergence of trade winds:
The trade winds are the prevailing easterly winds that blow towards the equator in the tropics. These winds converge near the equator, but the convergence zone is weak and unstable. This means that there is not enough rising warm air to create the low-pressure conditions necessary for a cyclone to form.
3. Presence of doldrums:
The doldrums are a region near the equator where the trade winds converge and there is very little wind. This area is also known as the Intertropical Convergence Zone (ITCZ). The doldrums are not conducive to the formation of cyclones because there is not enough wind to spin the storm.
Conclusion:
In conclusion, the absence of Coriolis force, weak convergence of trade winds, and the presence of doldrums near the equator are the main reasons why tropical cyclones do not form in this region. However, once a cyclone forms outside the equator, it can move towards the equator if it is strong enough, but it will weaken due to the lack of favorable conditions.
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Tropical cyclones are not formed near the equator because ofa)High temperature near the equatorb)The coriolis force is absent near the equatorc)Convergence of trade winds retards the formation of tropical cycloned)The presence of doldrums near the equatorCorrect answer is option 'B'. Can you explain this answer?
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Tropical cyclones are not formed near the equator because ofa)High temperature near the equatorb)The coriolis force is absent near the equatorc)Convergence of trade winds retards the formation of tropical cycloned)The presence of doldrums near the equatorCorrect 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 Tropical cyclones are not formed near the equator because ofa)High temperature near the equatorb)The coriolis force is absent near the equatorc)Convergence of trade winds retards the formation of tropical cycloned)The presence of doldrums near the equatorCorrect 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 Tropical cyclones are not formed near the equator because ofa)High temperature near the equatorb)The coriolis force is absent near the equatorc)Convergence of trade winds retards the formation of tropical cycloned)The presence of doldrums near the equatorCorrect answer is option 'B'. Can you explain this answer?.
Tropical cyclones are not formed near the equator because ofa)High temperature near the equatorb)The coriolis force is absent near the equatorc)Convergence of trade winds retards the formation of tropical cycloned)The presence of doldrums near the equatorCorrect 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 Tropical cyclones are not formed near the equator because ofa)High temperature near the equatorb)The coriolis force is absent near the equatorc)Convergence of trade winds retards the formation of tropical cycloned)The presence of doldrums near the equatorCorrect 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 Tropical cyclones are not formed near the equator because ofa)High temperature near the equatorb)The coriolis force is absent near the equatorc)Convergence of trade winds retards the formation of tropical cycloned)The presence of doldrums near the equatorCorrect answer is option 'B'. Can you explain this answer?.
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