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The High-frequency Active Auroral Research Program ( HAARP) is a University of Alaska Fairbanks program which researches the ionosphere – the highest, ionized part of Earth's atmosphere . The most prominent instrument at HAARP is the Ionospheric Research Instrument (IRI), a high-power radio frequency transmitter facility operating in the high ...
WPTA (channel 21) is a television station in Fort Wayne, Indiana, United States, affiliated with ABC, NBC, and MyNetworkTV. It is owned by Gray Television alongside CW+ affiliate WISE-TV (channel 33). The two stations share studios on Butler Road in Northwest Fort Wayne, where WPTA's transmitter is also located.
What is known today as WXIA-TV originally signed on the air September 30, 1951, at 5 p.m., as WLTV on VHF channel 8. It was the first full time ABC affiliate for Atlanta, taking it over from WSB-TV and WAGA-TV (channel 5), both originally primary NBC and CBS affiliates respectively that previously shared ABC programming as a secondary affiliation.
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 ...
www .reedtimmer .com. Reed Timmer (born March 17, 1980) is an American meteorologist and storm chaser. Born in Grand Rapids, Michigan, he took an interest in science, including weather, at a young age, before experiencing severe weather, including a hailstorm at age 13. After presenting weather forecasts at his high school, he began studying ...
Get the local weather forecast by the hour and the next 10 days.
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 ...
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.).
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