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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 ...
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.).
Mobile doppler weather radars have been used on dozens of scientific and academic research projects from their invention in the late 1900s. [1] One problems facing meteorological researchers was the fact that mesonets and other ground-based observation methods were being deployed too slow in order to accurately measure and study high-impact atmospheric phenomena. [1]
The resolution of any radar depends on the width of the beam and the range to the target. For example; a radar with 1 degree beam width and a target at 120 km (75 mi) range will show the target as 2 km (1.2 mi) wide. To produce a 1-degree beam at the most common frequencies, an antenna 1.5 kilometres (0.93 miles) wide is required.
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 [7] is active, which adds a supplemental low-level scan while completing a volume scan ...
RADARSAT-2 was constructed with several improvements over the RADARSAT-1 project, making it one of the most advanced radar imaging satellites in the world. [4] Some of the improvements over RADARSAT-1 include increased spatial resolution, multiple polarization filters, solid state recorders, and GPS receivers on board.
You can see your locations weather forecast in an hourly or 10 day view by using the toggle just below the sunrise and sunset times. Forecast details. The top left corner of the weather box will display your locations general weather information. For additional weather details your can select the drop down arrow under the current temperature.
The installation was completed on August 15, 1964, [1] and is now recorded on the list of IEEE Milestones in electrical engineering.When first built, the Mount Fuji Radar System was the world's highest weather radar (elevation 3,776 metres [12,388 ft]), and could observe major weather phenomena, such as destructive typhoons, at a range of more than 800 kilometres (500 mi).