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Doppler on Wheels. DOW 7 on display at the USA Science and Engineering Festival in 2010. Doppler on Wheels (or DOW) is a fleet of X-band and C-band mobile and quickly-deployable truck-borne radars which are the core instrumentation of the Flexible Array of Radars and Mesonets [1] affiliated with the University of Illinois [2] and led by Joshua ...
A Doppler On Wheels chasing a tornado near Attica, Kansas. Wurman is particularly interested in researching tornadogenesis and amassing sufficient datasets of tornado structure and dynamics observations for tornado climatology study. He is also the discoverer of sub-kilometer hurricane boundary layer rolls, and hurricane tornado-scale vortices ...
A Doppler on Wheels recorded winds of 264 mph (425 km/h) "well below" 50 metres (160 ft) above the ground level, "perhaps as low as 5–10 metres (16–33 ft) above the radar level". The Doppler on Wheels also recorded a confirmed five-second wind speed average of 112 m/s (250 mph; 400 km/h). F4 May 3, 1999: Mulhall, Oklahoma
VORTEX projects. NSSL mobile mesonet vehicles of the first Project VORTEX, equipped with surface measurement equipment. The V erification of the O rigins of R otation in T ornadoes Ex periment (or VORTEX) are field experiments that study tornadoes. VORTEX1 was the first time scientists completely researched the entire evolution of a tornado ...
Doppler effect. The emitted signal toward the car is reflected back with a variation of frequency that depends on the speed away/toward the radar (160 km/h). This is only a component of the real speed (170 km/h). The Doppler effect (or Doppler shift), named after Austrian physicist Christian Doppler who proposed it in 1842, is the difference ...
The SCR-584 (short for Set, Complete, Radio # 584) was an automatic-tracking microwave radar developed by the MIT Radiation Laboratory during World War II. It was one of the most advanced ground-based radars of its era, and became one of the primary gun laying radars used worldwide well into the 1950s. A trailer-mounted mobile version was the ...
The Tornado Intercept Vehicle 1 (TIV 1) is a heavily modified 1997 Ford F-Series F-Super Duty cab & chassis truck used as a storm chasing platform and built by Sean Casey. [1] This heavily armored vehicle can drive into a weak to relatively strong tornado ( EF0 to EF3) [citation needed] to film it and take measurements.
The 2013 El Reno tornado was an extremely large, powerful, and erratic tornado [a] that occurred over rural areas of Central Oklahoma during the early evening of Friday, May 31, 2013. This rain-wrapped, multiple-vortex tornado was the widest tornado ever recorded and was part of a larger weather system that produced dozens of tornadoes over the ...