What force is necessary for tropical cyclones to obtain their rotation?

Answer 1

Tropical revolving stoms, called hurricanes, typhoons or tropical cyclones depending on where you are in the world, get their rotation from the Coriolis effect. Coriolis is caused by the rotation of the Earth about its axis and it gives a turning effect of one revolution per day. Anything moving over the surface of the Earth is deflected to the left in the southern hemisphere and to the right in the north. This means that air spirals clockwise into a tropical cyclone in the southern hemisphere and anticlockwise in the north.

The Coriolis effect is proportional to the sine of the latitude so it is at a maximum at the poles and zero at the equator. Tropical cyclones cannot form within 5° of the equator because Coriolis is not strong enough to get the system rotating.

Answer 2

Low pressure systems have surface winds which converge, or come together at the center. In the northern hemisphere, due to the Coriolis force, which is the apparent force which results in earth being a rotating sphere, winds move to the right of motion. Therefore, tropical cyclones rotate counterclockwise.

Answer 3

coreolis effect..........has to do with the way the earth rotates