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NEXRAD or Nexrad (Next-Generation Radar) is a network of 159 high-resolution S-band Doppler weather radars operated by the National Weather Service (NWS), an agency of the National Oceanic and Atmospheric Administration (NOAA) within the United States Department of Commerce, the Federal Aviation Administration (FAA) within the Department of Transportation, and the U.S. Air Force within the ...
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 ...
A NEXRAD weather radar currently used by the National Weather Service (NWS) is a 10 cm wavelength (2700-3000 MHz) radar capable of a complete scan every 4.5 to 10 minutes, depending on the number of angles scanned, and depending on whether or not MESO-SAILS is active, which adds a supplemental low-level scan while completing a volume scan. Its ...
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Greensboro ( / ˈɡriːnzbʌroʊ / ⓘ; [ 5 ] local pronunciation / ˈɡriːnzbʌrə /) is a city in and the county seat of Guilford County, North Carolina, United States. At the 2020 census, its population was 299,035; it was estimated to be 302,296 in 2023. [ 6 ] It is the third-most populous city in North Carolina after Charlotte and Raleigh ...
WITN-TV. / 35.365528°N 77.392944°W / 35.365528; -77.392944. WITN-TV (channel 7) is a television station licensed to Washington, North Carolina, United States, serving Eastern North Carolina as an affiliate of NBC and MyNetworkTV. Owned by Gray Television, the station has primary studio facilities on East Arlington Boulevard in ...
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Pulse-Doppler radar. A pulse-Doppler radar is a radar system that determines the range to a target using pulse-timing techniques, and uses the Doppler effect of the returned signal to determine the target object's velocity. It combines the features of pulse radars and continuous-wave radars, which were formerly separate due to the complexity of ...
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