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Q51 (CAPF/2018) Geography › World Physical Geography › Atmospheric pressure winds Answer Verified

Which of the following statements about tropical cyclone are correct? 1. It originates and develops over warm oceanic surface. 2. Presence of Coriolis force is necesBajy for it. 3. It occurs in middle latitudinal region* 4. It develops ‘eye’ with calm and descending air condition. Select the correct answer using the code given below.

Result
Your answer: —  ·  Correct: B
Explanation

Tropical cyclones are intense low-pressure systems that originate and develop over warm oceanic surfaces, typically requiring sea surface temperatures higher than 26.5°C to 27°C to fuel the system through latent heat [3]. The presence of the Coriolis force is essential to deflect winds and generate the necessary cyclonic vortex; hence, they rarely form within 5° of the equator where this force is negligible. Unlike temperate cyclones which occur in middle latitudes, tropical cyclones are characteristic of tropical and subtropical regions, generally between 5° and 30° latitude [3]. A mature tropical cyclone develops a central 'eye,' a region of calm conditions with no rainfall and descending air currents, distinguishing it from the surrounding violent eyewall. Therefore, statements 1, 2, and 4 are correct, while statement 3 is incorrect as it describes temperate cyclones.

Sources

  1. [3] https://www.weather.gov/source/zhu/ZHU_Training_Page/tropical_stuff/hurricane_anatomy/hurricane_anatomy.html
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