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- Les expériences VORTEX (Verification of the Origins of Rotation in Tornadoes Experiment) furent des campagnes de prise de mesures effectuées aux États-Unis dans un environnement où des tornades sont rapportées. Ces expériences furent une collaboration de plusieurs universités, du National Weather Service et d'autres organismes internationaux. Elles se déroulèrent dans la Tornado Alley des Grandes Plaines américaines et mirent en jeu une panoplie d’instruments dont des stations météorologiques mobiles disposées en mésonet, des radars météorologiques, des radiosondages, etc. Le but de ces expériences était de mieux comprendre les conditions qui mènent à la formation des tornades sous un orage violent, celles qui contrôlent sa durée de vie et sa dissipation. VORTEX 1 s’était déroulé durant les printemps de 1994 et 1995. La première phase de VORTEX 2 s’était déroulée en mai et juin 2009 alors qu’une seconde phase aura été conduite à la même période en 2010. (fr)
- The Verification of the Origins of Rotation in Tornadoes Experiment (or VORTEX) are field experiments that study tornadoes. VORTEX1 was the first time scientists completely researched the entire evolution of a tornado with an array of instrumentation, enabling a greater understanding of the processes involved with tornadogenesis. A violent tornado near Union City, Oklahoma was documented in its entirety by chasers of the Tornado Intercept Project (TIP) in 1973. Their visual observations led to advancement in understanding of tornado structure and life cycles. VORTEX2 used enhanced technology that allowed scientists to improve forecasting capabilities and improve lead time on advanced warnings to residents. VORTEX2 sought to reveal how tornadoes form, how long they last and why they last that long, and what causes them to dissipate. VORTEX1 and VORTEX2 was based on the use of large fleets of instrumented vehicles that ran on land, as well as aircraft and mobile radars. Important work on developing and coordinating mobile mesonets came from these field projects. Analysis of data collected in subsequent years led to significant advancement in understanding of supercell and tornado morphology and dynamics. The field research phase of the VORTEX2 project concluded on July 6, 2010. (en)
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- 26467 (xsd:nonNegativeInteger)
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- Verification of the Origins of Rotation in Tornadoes Experiment 2 (en)
- Verification of the Origins of Rotation in Tornadoes Experiment 1 (en)
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- 1994 (xsd:integer)
- 0001-05-10 (xsd:gMonthDay)
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- VORTEX1 (en)
- VORTEX2 (en)
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- Project Vortex. The Dimmitt tornado. National Severe Storms Laboratory (en)
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- Dimmitt Tornado1 - NOAA.jpg (en)
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- Documented an entire tornado, which, in conjunction with deployment of the NEXRAD system, helped the National Weather Service to provide severe weather warnings with a thirteen-minute lead time, and reduce false alarms by ten percent. (en)
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- The Verification of the Origins of Rotation in Tornadoes Experiment (or VORTEX) are field experiments that study tornadoes. VORTEX1 was the first time scientists completely researched the entire evolution of a tornado with an array of instrumentation, enabling a greater understanding of the processes involved with tornadogenesis. A violent tornado near Union City, Oklahoma was documented in its entirety by chasers of the Tornado Intercept Project (TIP) in 1973. Their visual observations led to advancement in understanding of tornado structure and life cycles. (en)
- Les expériences VORTEX (Verification of the Origins of Rotation in Tornadoes Experiment) furent des campagnes de prise de mesures effectuées aux États-Unis dans un environnement où des tornades sont rapportées. Ces expériences furent une collaboration de plusieurs universités, du National Weather Service et d'autres organismes internationaux. Elles se déroulèrent dans la Tornado Alley des Grandes Plaines américaines et mirent en jeu une panoplie d’instruments dont des stations météorologiques mobiles disposées en mésonet, des radars météorologiques, des radiosondages, etc. (fr)
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- Expériences VORTEX (fr)
- VORTEX projects (en)
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