CYCLONES
WHAT ARE CYCLONES?
- Cyclones are inward air circulation around a low-pressure area.
- The wind circulation is from outside towards the central low pressure.
- Due to Coriolis force, they rotate anti-clockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere.
WHAT ARE THE TYPES OF CYCLONES?
There are various types of cyclones depending on prevailing low-pressure system:
- Tropical cyclone
- Extratropical cyclone
- Tornadoes
HOW IS A CYCLONE FORMED?
- Cyclogenesis helps in the formation of a cyclone.
- Tropical cyclones are formed over warm ocean water near the equator.
- Warm moist air creates a low-pressure area near the surface.
- This results in the movement of cooler air from surrounding to the low-pressure area.
- The cool air becomes warm and rises up.
- It helps in the formation of clouds.
- The above cycle keeps continuing resulting in a cyclone.
HOW ARE CYCLONES ADDRESSED ACROSS THE GLOBE?
Cyclones have different names in different locations.
- Hurricanes – In the Atlantic and Eastern Pacific.
- Typhoons – In Southeast Asia.
- Cyclone – In the Indian Ocean and Western Pacific around Australia.
WHAT ARE ANTICYCLONES?
- An Anti-Cyclone is the opposite of a Cyclone.
- It has an outward air circulation around a high-pressure center.
- Winds rotate clockwise in the Northern Hemisphere.
- High pressure centers have fair weather conditions.