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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 ...
AccuWeather Network. The AccuWeather Network is an American cable and satellite television network launched, operated and owned by AccuWeather. The network broadcasts live and pre-recorded national and regional weather forecasts, analysis of ongoing weather events, and weather-related news. The network's studio and master control facilities are ...
WRAL-TV was the first in the U.S. to broadcast a live sports program in high definition (on September 6, 1997), as well as the first HD newscast (on October 13, 2000). [49] CBS utilized WRAL-HD in testing its own high-definition programming, and in 1999, began providing the station with a regular schedule of prime time programs in HD.
WWBT (channel 12) is a television station in Richmond, Virginia, United States, affiliated with NBC. It is owned by Gray Television alongside Ashland -licensed CW affiliate WUPV (channel 65). The two stations share studios on Midlothian Turnpike (US 60) in Richmond, where WWBT's transmitter is also located.
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 ...
WAVY airs thirty hours of local news a week. It operates its own weather radar, called "Super Doppler 10", at its studios.It was the first in the area to air a local morning broadcast at 5:30 a.m., beginning in 1992, and added weeknight newscasts at 5 p.m. in 1989 and 5:30 p.m. in 1994. [32]
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.).
In 1962, they upgraded to a 10 cm, and in 1966, dual wavelength capability was added. After several modifications, the radar was placed on top of the newly completed Eller O&M Building in 1973. In 1992, the Aggie Doppler RADar was born with the installation of doppler capability. A final upgrade to the pedestal, removal of the side dishes, new ...