Question

Cyclones in Odisha occur mainly due to the depression over ________
A) Bay of Bengal
B) Arabian Sea
C) Indian Ocean
D) Andaman Sea

Answer 1

Hint: Cyclones are among the most powerful storms on the planet. In the Northern Hemisphere, a cyclone is a system of winds revolving counter clockwise around a low-pressure centre. Clouds and precipitation form as the spinning air rises and cools.

Complete answer:
Tropical cyclones form over huge amounts of relatively warm water, enhancing the Bay of Bengal's suitability. Evaporation of water from the marine surface sustains a tropical cyclone, resulting in the production of clouds and rain that follow the cyclone. As a result, the presence of a vast body of water is critical for the creation of a tropical cyclone. One of the reasons tropical cyclones occur virtually exclusively in tropical oceans is because of this. The Bay of Bengal is located in the tropical zone, making it more conducive to the creation of tropical cyclones.

Yaas was a relatively strong and very severe tropical storm that made landfall in Odisha in late May 2021 and caused significant damage in West Bengal. Yaas originated as a result of a tropical disturbance that was initially observed on May 23 by the Indian Meteorological Department. Many electrical businesses in West Bengal and Odisha had extra generators and transformers ready in case of a power outage.

The maximum sustained surface wind speed is between 17 and 33 knots (31 and 61 km/h) during a cyclonic disturbance. A "deep depression" is defined as a system with a maximum sustained wind speed of 28 knots (52 km/h) to 33 knots (61 km/h). The tropical cyclone's travel direction. A depression, according to the IMD, is a low-pressure system with a wind speed of 32-50 km/h. According to their scale, a low pressure in the water becomes a depression under favourable conditions, then a deep depression, then a cyclonic storm, and so on.

Cyclones in Odisha occur mainly due to the depression over Bay of Bengal. Therefore the correct answer is option ‘A’.

 Note: When the weather is controlled by unstable conditions, a low-pressure system, also known as a depression, develops. Air rises in a depression, generating a low-pressure area at the surface. Because ascending air cools and condenses, allowing clouds to form, the weather is frequently overcast and damp.