Question

In which season is the frequency of tropical cyclones in the Bay of Bengal maximum?
a. During monsoon
b. After summer
c. During winter
d. During autumn

Answer 1

Hint: The cyclones originating between the Tropic of Cancer and the Tropic of Capricorn are called tropical cyclones. These cyclones have a substantial effect on the weather of low latitudes, especially rainfall. In summer, they originate only over the warm seas with the help of inter-tropical convergence (ITCZ) when it slips from 5 to 30 ° north latitude. The hot and humid winds of these regions when above the sustainable process when it arises, it rains heavily. The main source of energy of these cyclones is the latent heat of condensation. The hotter and wetter the rising air, the more stormy the weather.

Complete solution:
Normally the diameter of these cyclones is 80 to 300 km. But some are so small that the diameter is 50 km. Their shape is usually circular or oval but their number of isobar lines is very less. The speed of tropical cyclones varies from simple to severe. Wind speed 32 km in weak cyclones. Hourly, while the wind speed in Hurricane is 120 km. It is seen more than hourly.

Tropical cyclones are not always moving. Sometimes they keep raining for several days at one place. Their travel path varies. They generally move in an east to west direction with commercial winds. From the equator to the latitudes, their direction is western, from 150 to 30 ° towards the poles and beyond it again becomes western. These cyclones begin to dissipate when they reach the subtropical zone. The speed of these cyclones over the seas is rapid, but in order to reach the site, they begin to erode. This is the reason that they only affect the coastal areas.

In India, the effects of avalanches originating in the Arabian Sea and the Bay of Bengal are common. They fall between April and November. Their speed is normally 40-50 km. Hourly but sometimes due to the high intensity they cause destruction. In this context, the cyclones in Kandla and the cyclones of Odisha can be seen. The tropical cyclone in Odisha was given the status of Super Cyclone, as the difference between the centre and periphery of the cyclone was 40–55mb and the wind speed was more than 225 km / h. Currently, three types of measures are being taken in India to forecast these cyclones -
A total of 10 radars have been installed (6 in the east and 4 in the west). These keep the coastal parts and ships from time to time getting information about the pressure and speed of these cyclones.
 By sending radio waves through airplanes, the information about the mechanism of cyclones is obtained and forecasted about them.
Information about these cyclones is obtained through satellites in even more subtle ways.


Hence, the correct answer is option b.

Note:
Anticyclone is a cyclical flow of winds, but unlike a cyclone, there is high pressure in its centre. It consists of concentric isobar lines of decreasing air pressure out of the periphery, resulting in the flow of air from the centre to the periphery. Therefore, an anticyclone creates a high-pressure area in an area and indicates clear seasonal conditions. Since the winds in the anticyclone are concave from top to bottom.