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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 ...
The San Antonio–Austin metroplex is an emerging metropolitan area in the US state of Texas, where the dominant core cities are San Antonio and Austin. This combined metropolitan region, composed of the Greater Austin and Greater San Antonio areas, has approximately 5 million people. Downtown San Antonio and Downtown Austin are about 80 mi ...
KNVA (channel 54) is a television station in Austin, Texas, United States, serving as a de facto owned-and-operated station of The CW.It is owned by Vaughan Media and operated under a local marketing agreement (LMA) by The CW's majority owner, Nexstar Media Group, making it sister to NBC affiliate KXAN-TV (channel 36) and Llano-licensed MyNetworkTV affiliate KBVO (channel 14).
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 ...
Willow Park is a city in Parker County, Texas, United States. The population was 4,936 in 2020. [ 4] Willow Park was the location of Trinity Meadows Race Track, one of the first horse racing tracks opened once Texas legalized parimutuel betting. However, it was never seriously considered for upgrade to first-class status, and once Lone Star ...
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.).
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 the electronics .
Continuous-wave radar (CW radar) is a type of radar system where a known stable frequency continuous wave radio energy is transmitted and then received from any reflecting objects. [1] Individual objects can be detected using the Doppler effect , which causes the received signal to have a different frequency from the transmitted signal ...