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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 High-frequency Active Auroral Research Program(HAARP) is a University of Alaska Fairbanksprogram which researches the ionosphere– the highest, ionizedpart of Earth's atmosphere. The most prominent instrument at HAARP is the Ionospheric Research Instrument (IRI), a high-power radio frequencytransmitterfacility operating in the high ...
Weather Underground is a commercial weather service providing real-time weather information over the Internet. It provides weather reports for most major cities around the world on its Web site, as well as local weather reports for newspapers and third-party sites. Its information comes from the National Weather Service (NWS), and over 250,000 ...
Michigan power outage map. As of 7:27 a.m. ET Wednesday, there are over 335,000 customers without power across the state, according to a USA TODAY power outage tracker. Nearly 79,000 outages have ...
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 ...
32.0 inches (81 cm) December 2, 1985. Herman. Greatest snow depth. 117.0 inches (297 cm) January 27–31, 1948. Eagle Harbor.
Radar is a system that uses radio waves to determine the distance (), direction (azimuth and elevation angles), and radial velocity of objects relative to the site. It is a radiodetermination method [1] used to detect and track aircraft, ships, spacecraft, guided missiles, motor vehicles, map weather formations, and terrain.
At a total area of 97,990 square miles (253,800 km 2) – including those territorial waters – Michigan is the largest state east of the Mississippi River, and the eleventh largest state overall. More than half of the state's land area – 30,156 square miles (78,100 km 2) – is still forest. The state lies roughly between 41° and 49 ...
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