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Gyre (other)
An ocean gyre is any large system of rotating ocean currents in oceanography. Gyre or gire may also refer to: Natural and scientific phenomena * Cyclone In meteorology, a cyclone () is a large air mass that rotates around a strong center of low atmospheric pressure, counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere as viewed from above (opposite to an anti ... * Tornado * Tropical cyclone * Vortex * Whirlpool or maelstrom Other uses * Gire, a band including the musician Kátai Tamás * TeX Gyre, a collection of fonts derived from fonts released by URW++ Design & Development GmbH * USNS ''Gyre'', an American research ship See also * The Widening Gyre (other) * Jabberwocky {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ocean Gyre
In oceanography, a gyre () is any large system of circulating ocean currents, particularly those involved with large wind movements. Gyres are caused by the Coriolis effect; planetary vorticity, horizontal friction and vertical friction determine the circulatory patterns from the ''wind stress curl'' (torque). ''Gyre'' can refer to any type of vortex in an atmosphere or a sea, even one that is human-created, but it is most commonly used in terrestrial oceanography to refer to the major ocean systems. Major gyres The following are the five most notable ocean gyres:The five most notable gyres PowerPoint Presentation * * [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyclone
In meteorology, a cyclone () is a large air mass that rotates around a strong center of low atmospheric pressure, counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere as viewed from above (opposite to an anticyclone). 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 (the synoptic 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, Jupiter, and Neptune. Cyclogenesis is the process of cyclone formation and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tornado
A tornado is a violently rotating column of air that is in contact with both the surface of the Earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud. It is often referred to as a twister, whirlwind or cyclone, although the word cyclone is used in meteorology to name a weather system with a low-pressure area in the center around which, from an observer looking down toward the surface of the Earth, winds blow counterclockwise in the Northern Hemisphere and clockwise in the Southern. Tornadoes come in many shapes and sizes, and they are often visible in the form of a condensation funnel originating from the base of a cumulonimbus cloud, with a cloud of rotating debris and dust beneath it. Most tornadoes have wind speeds less than , are about across, and travel several kilometers (a few miles) before dissipating. The most extreme tornadoes can attain wind speeds of more than , are more than in diameter, and stay on the ground for more than 100 k ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropical Cyclone
A tropical cyclone is a rapidly rotating storm system characterized by a low-pressure center, a closed low-level atmospheric circulation, strong winds, and a spiral arrangement of thunderstorms that produce heavy rain and squalls. Depending on its location and strength, a tropical cyclone is referred to by different names, including hurricane (), typhoon (), tropical storm, cyclonic storm, tropical depression, or simply cyclone. A hurricane is a strong tropical cyclone that occurs in the Atlantic Ocean or northeastern Pacific Ocean, and a typhoon occurs in the northwestern Pacific Ocean. In the Indian Ocean, South Pacific, or (rarely) South Atlantic, comparable storms are referred to simply as "tropical cyclones", and such storms in the Indian Ocean can also be called "severe cyclonic storms". "Tropical" refers to the geographical origin of these systems, which form almost exclusively over tropical seas. "Cyclone" refers to their winds moving in a circle, whirling round ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vortex
In fluid dynamics, a vortex ( : vortices or vortexes) is a region in a fluid in which the flow revolves around an axis line, which may be straight or curved. Vortices form in stirred fluids, and may be observed in smoke rings, whirlpools in the wake of a boat, and the winds surrounding a tropical cyclone, tornado or dust devil. Vortices are a major component of turbulent flow. The distribution of velocity, vorticity (the curl of the flow velocity), as well as the concept of circulation are used to characterise vortices. In most vortices, the fluid flow velocity is greatest next to its axis and decreases in inverse proportion to the distance from the axis. In the absence of external forces, viscous friction within the fluid tends to organise the flow into a collection of irrotational vortices, possibly superimposed to larger-scale flows, including larger-scale vortices. Once formed, vortices can move, stretch, twist, and interact in complex ways. A moving vortex carries s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whirlpool
A whirlpool is a body of rotating water produced by opposing currents or a current running into an obstacle. Small whirlpools form when a bath or a sink is draining. More powerful ones formed in seas or oceans may be called maelstroms ( ). ''Vortex'' is the proper term for a whirlpool that has a downdraft. In narrow ocean straits with fast flowing water, whirlpools are often caused by tides. Many stories tell of ships being sucked into a maelstrom, although only smaller craft are actually in danger. Smaller whirlpools appear at river rapids and can be observed downstream of artificial structures such as weirs and dams. Large cataracts, such as Niagara Falls, produce strong whirlpools. Notable whirlpools Saltstraumen Saltstraumen is a narrow strait located close to the Arctic Circle, south-east of the city of Bodø, Norway. It has one of the strongest tidal currents in the world. Whirlpools up to in diameter and in depth are formed when the current is at its strongest. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USNS Gyre
''Gyre'' (T-AGOR-21), best known as RV ''Gyre'', was the lead ship of her class of oceanographic research ships acquired by the U.S. Navy in 1973 for assignment to the University-National Oceanographic Laboratory System (UNOLS) fleet of Navy owned ships. ''Gyre'' was operated by the Texas A&M University School of Oceanography as part of the Navy owned UNOLS fleet until stricken 17 August 1992 and transferred to the university under a program transferring ships to states, schools and other public institutions. The university operated the ship until sale in December 2005. ''Gyre'' was purchased by TDI-Brooks International, Inc., flagged in Vanuatu, Port Vila and operated as a for hire research and survey vessel with particular suitability for undersea oil and gas related work. Construction & characteristics ''Gyre'' was built in New Orleans, LA, by Halter Marine, Inc. and was laid down on 9 October 1972 and launched on 23 May 1973. She was delivered to the Navy 14 Novembe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Widening Gyre (other)
The Widening Gyre may refer to the first line of the poem by Irish poet W. B. Yeats "The Second Coming". The Widening Gyre may also refer to: Games * "The Widening Gyre", a a steampunk setting for the Hero System Literature and publications * '' Batman: The Widening Gyre'', a 2009 Batman limited series from Kevin Smith * ''The Widening Gyre'' (novel), a 1983 novel by Robert B. Parker Music * ''The Widening Gyre'', a 1999 symphony by composer Anthony Ritchie * "The Widening Gyre", a piece on Idiot Flesh's 1990 album '' Tales of Instant Knowledge and Sure Death'' * ''The Widening Gyre'' (album), a 2015 studio album by Irish folk music band Altan Television * "The Widening Gyre", the 40th episode of the animated series '' Ben 10: Ultimate Alien'' * "The Widening Gyre", an episode of the TV show '' Andromeda'' * "The Widening Gyre", an episode of the TV show ''Sons of Anarchy'' * "The Widening Gyre", an episode of the TV show ''Haven'' See also * Gyre (other) An ocean ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
