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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 ...
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.).
Road closed in Kansas City. The road is closed between US-24/Washington Boulevard and Barnett Avenue in Kansas City. The event affects 380 feet. The warning was issued at 10:56 a.m. on Monday, and ...
Warning in Kansas City: Crash reported on southbound I-435. A crash has been reported on I-435 from I-70/Exit 63 to Eastwood Trafficway/Exit 65. The event impacts 0.73 miles. The traffic alert was ...
Broken down vehicle on eastbound I-470 in Kansas City. There is a broken down vehicle on I-470 between Raytown Road/Exit 4 and View High Drive/Exit 5. The event impacts 570 feet. The warning was ...
Pulse-Doppler systems measure the range to objects by measuring the elapsed time between sending a pulse of radio energy and receiving a reflection of the object. Radio waves travel at the speed of light, so the distance to the object is the elapsed time multiplied by the speed of light, divided by two – there and back.
Heavy rain prompts traffic warning on southbound I-35 in Kansas City A traffic advisory has been issued for hazardous driving conditions attributed to heavy rain on I-35 from US-169/Exit 234 to I ...