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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 ...
North Warning System. The North Warning System (NWS, French: Système d'alerte du nord) is a joint United States and Canadian early-warning radar system for the atmospheric air defense of North America. It provides surveillance of airspace from potential incursions or attacks from across North America's polar region.
ARMOR is a modified WSR-74 C-Band (5625 MHz) radar with a 0.5 - 1.0° resolution in azimuth and a spatial resolution varying from 60 to 500 meters, with a typical resolution of 150m. ARMOR sits 206 meters above sea level. The pulse length can vary from 0.4 to 4 microseconds and its peak power is 350 kW.
Get the New York, NY local weather forecast by the hour and the next 10 days.
Severe weather and the likelihood of more tornadoes will return to the central United States, spanning Tuesday evening, Wednesday and Thursday, AccuWeather meteorologists warn. Along with the ...
For the 10 day forecast, yr.no employs the ECMWF-ENS model with an 18 km resolution for Norwegian territories, and for the rest of the world, IFS-HRES with a 9 km resolution. Outside of Scandinavia, the 3-day forecasts are updated every six hours, and the 10-day forecasts every 12 hours. Information sources
A stormy Memorial Day weekend across the nation ended with another risk of severe weather in the Northeast, where AccuWeather meteorologists correctly forecasted that storms packing damaging winds ...
The Weather Network ( TWN) is a Canadian English-language discretionary weather information specialty channel available in Canada, the United States and the United Kingdom. It delivers weather information on television, digital platforms (responsive websites, mobile and tablet applications) and TV apps. The company is owned by Pelmorex Media ...