Tropical cyclone | Definition, Causes, Formation, and Effects
2024年10月14日 · Tropical cyclone, an intense circular storm that originates over warm tropical oceans and is characterized by low atmospheric pressure, high winds, and heavy rain. Also called typhoons and hurricanes, cyclones strike regions as far apart as the Gulf Coast of North America, northwestern Australia, and eastern India.
Learn about cyclones and how they are formed - Encyclopedia …
A tropical depression may intensify and evolve into a tropical storm, with even lower pressures and stronger winds. When the winds rise above 118 kilometers per hour, it is called a cyclone. Cyclones look like huge disks of clouds. They are between 10 and 15 kilometers thick.
Tropical cyclone - Formation, Paths, Impacts | Britannica
2024年10月14日 · Tropical cyclone - Formation, Paths, Impacts: A circulation system goes through a sequence of stages as it intensifies into a mature tropical cyclone. The storm begins as a tropical disturbance, which typically occurs when loosely organized cumulonimbus clouds in an easterly wave begin to show signs of a weak circulation.
Cyclone | Wind, Pressure & Rainfall | Britannica
2024年9月15日 · Cyclone, any large system of winds that circulates about a centre of low atmospheric pressure in a counterclockwise direction north of the Equator and in a clockwise direction to the south. Cyclonic winds move across nearly all regions of the Earth except the equatorial belt and are generally.
tropical cyclone - Kids | Britannica Kids | Homework Help
A tropical cyclone is a circular storm that forms over warm oceans. When a tropical cyclone hits land, it brings heavy rains and strong winds. The winds can destroy buildings and rip out trees by their roots. Tropical cyclones have different names around the world.
Bomb cyclone | Description, Formation and Development, & Facts
bomb cyclone, large midlatitude storm resulting from explosive cyclogenesis (or, informally, bombogenesis), a type of accelerated extratropical cyclone development in which surface pressure falls substantially over a 24-hour period.
Tropical cyclone - Location, Patterns, Forecasting | Britannica
2024年10月11日 · Tropical cyclone - Location, Patterns, Forecasting: Tropical oceans spawn approximately 80 tropical storms annually, and about two-thirds are severe (category 1 or higher on the Saffir-Simpson scale of intensity). Almost 90 percent of these storms form within 20° north or south of the Equator.
Tropical cyclone - Tracking, Forecasting, Impacts | Britannica
2024年10月14日 · The forecast model takes into account seasonal trends in factors related to tropical cyclone formation such as the presence of El Niño or La Niña oceanic conditions (see the section below), amount of rainfall over Africa, winds in the lower stratosphere, and atmospheric pressure and wind tendencies over the Caribbean. Based on these factors ...
Cyclone | technology | Britannica
A cyclone removes particulates by causing the dirty airstream to flow in a spiral path inside a cylindrical chamber. Dirty air enters the chamber from a tangential direction at the outer wall of the device, forming a vortex as it swirls within the chamber.
Climate - Anticyclones, Pressure, Airflow | Britannica
2024年9月13日 · Typically, cyclones form initially in latitudes 30° to 40° S and move in a generally southeastward direction, reaching maturity in latitudes near 60° S. Thus, the Antarctic continent is usually ringed by a number of mature or decaying cyclones.