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Q89 (NDA-I/2013) Geography › World Physical Geography › Atmospheric pressure winds Answer Verified

When the wind blow from all sides to the central low in an anti-clockwise direction, then this phenomenon is known as

Result
Your answer: —  Â·  Correct: C
Explanation

A cyclone is a low-pressure system where winds converge toward the center [4]. Due to the Coriolis effect, winds are deflected to the right in the Northern Hemisphere and to the left in the Southern Hemisphere [3]. Consequently, in the Northern Hemisphere, this deflection causes the inward-flowing winds to initiate a counter-clockwise (anti-clockwise) rotation around the central low [2]. This pattern is characteristic of both tropical and temperate (extra-tropical) cyclones in the Northern Hemisphere [7]. In contrast, cyclones in the Southern Hemisphere rotate in a clockwise direction [1]. Therefore, a phenomenon where winds blow from all sides to a central low in an anti-clockwise direction specifically identifies a cyclone in the Northern Hemisphere. While both tropical and temperate cyclones follow this rule, 'tropical cyclones of northern hemisphere' is the most standard application of this rotational principle in general meteorological contexts.

Sources

  1. [1] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 23: Pressure Systems and Wind System > Centripetal Acceleration > p. 309
  2. [4] FUNDAMENTALS OF PHYSICAL GEOGRAPHY, Geography Class XI (NCERT 2025 ed.) > Chapter 9: Atmospheric Circulation and Weather Systems > General circulation of the atmosphere > p. 79
  3. [2] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 23: Pressure Systems and Wind System > Why Tropical Cyclones Do Not Form At The Equator? > p. 310
  4. [3] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 28: Temperate Cyclones > 28. Temperate Cyclones > p. 395
  5. [7] https://www.weather.gov/media/zhu/ZHU_Training_Page/Miscellaneous/cyclones_anticyclones/cyclones.pdf
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SIMILAR QUESTIONS

CAPF · 2015 · Q113 Relevance score: 3.89

Consider the following statements relating to cyclone, anti cyclone and trade wind : 1. The wind direction is clockwise in the cyclone of northern hemisphere 2. The planetary wind that blows from north-east to north-west is known as north-east trade wind 3. The wind direction is anti clockwisc in the anticyclone of southern hemisphere 4. Both westerlies and trade winds originate from sub-tropical highs Which of the statements given above is/are correct ?

IAS · 2005 · Q35 Relevance score: -0.04

Assertion (A) : Wind patterns are clockwise in the northern hemisphere and anticlockwise in the southern hemisphere. Reason (R) : The directions of wind patterns in the northern and the southern hemisphere are governed by the Coriolis effect.

NDA-II · 2011 · Q57 Relevance score: -0.43

Which of the following statements is/are correct? I. Cyclone is a low pressure system. 2. The wind movement is clockwise in the cyclone of northern hemisphere. Select the correct answer using the code, given below :

NDA-II · 2010 · Q5 Relevance score: -0.86

Consider the following statements I. In a cyclone, the direction of wind flow is counter clockwise in the northern hemisphere II. The tropica] cyclone fades away when it reaches land because there is no large supply of warm moist air Which of the statements given above is/are correct?

CAPF · 2011 · Q6 Relevance score: -0.92

Which one among the following statements relating to a cyclone is not correct ?