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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 Alabama Huntsville [2] and led by Joshua Wurman, with the funding partially provided by the National Science Foundation ...
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". [14] [11] The Doppler on Wheels also recorded a confirmed five-second wind speed average of 112 m/s (250 mph; 400 km/h). [14] F4 May 3, 1999: Mulhall, Oklahoma
A Doppler on Wheels (DOW) mobile radar observed this tornado as it crossed Mulhall. The DOW documented the largest-ever-observed core flow circulation with a distance of 1,600 m (5,200 ft) between peak velocities on either side of the tornado, and a roughly 7 km (4.3 mi) width of peak wind gusts exceeding 43 m/s (96 mph), making the Mulhall ...
Weather radar in Norman, Oklahoma with rainshaft Weather (WF44) radar dish University of Oklahoma OU-PRIME C-band, polarimetric, weather radar during construction. Weather radar, also called weather surveillance radar (WSR) and Doppler weather radar, is a type of radar used to locate precipitation, calculate its motion, and estimate its type (rain, snow, hail etc.).
However, winds of 309–318 mph (497–512 km/h) were measured in a sub-vortex of the tornado by a DOW (Doppler on Wheels), placing it among the strongest tornadoes ever measured. [3] This tornado was the fourth violent tornado of the 2024 season and the second one to occur during the prolifically active month of May.
The frequency selection of weather radar is a performance compromise between precipitation reflectivity and attenuation due to atmospheric water vapor. Some weather radars uses doppler shift to measure wind speeds and dual-polarization for identification of types of precipitations. [3] [4] Weather radar; Wind profilers; Millimetre cloud radar ...
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Doppler On Wheels (DOW) radar. Used for micro-scale and near-surface based analysis of the atmosphere. The concept of DRCs builds on the understanding of hook echoes, first documented in the 1950s. These hook echoes were initially hypothesized to form from the advection of precipitation around a supercell's rotating updraft. However, subsequent ...