Large scale air mass that rotates around a strong center of low pressure
Cyclone ▸ Facts ▸ Comments ▸ News ▸ Videos
In meteorology, a cyclone is a large scale air mass that rotates around a strong center of low atmospheric pressure. Cyclones are characterized by inward spiraling winds that rotate about a zone of low pressure. The largest low-pressure systems are polar vortices and extratropical cyclones of the largest scale. Warm-core cyclones such as tropical cyclones and subtropical cyclones also lie within the synoptic scale. Mesocyclones, tornadoes and dust devils lie within smaller mesoscale. Upper level cyclones can exist without the presence of a surface low, and can pinch off from the base of the tropical upper tropospheric trough during the summer months in the Northern Hemisphere. Cyclones have also been seen on extraterrestrial planets, such as Mars and Neptune. Cyclogenesis is the process of cyclone formation and intensification. Extratropical cyclones begin as waves in large regions of enhanced mid-latitude temperature contrasts called baroclinic zones. These zones contract and form weather fronts as the cyclonic circulation closes and intensifies. Later in their life cycle, extratropical cyclones occlude as cold air masses undercut the warmer air and become cold core systems. A cyclone's track is guided over the course of its 2 to 6 day life cycle by the steering flow of the subtropical jet stream.
You Might Like
|Environmentally friendly: One News Page is hosted on servers powered solely by renewable energy|
|© 2019 One News Page Ltd. All Rights Reserved.|
|About us | Contact us | Disclaimer | Press Room | Terms & Conditions | Content Accreditation|
RSS | News for my Website | Free news search widget | In the News | DMCA / Content Removal | Privacy & Data Protection Policy
How are we doing? Send us your feedback | LIKE us on Facebook FOLLOW us on Twitter • FOLLOW us on Pinterest
One News® is a registered trademark of One News Page Ltd.