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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 ...
An array of CODAR sites can be employed to obtain regional coverage. In a multiple radar configuration, spacing between two radar systems should be approximately 15 to 40 km for long-range open ocean mode and 8 to 20 km in short-range mode. [7] Typically, CODAR data are averaged over one hour to reduce the noisiness of the sea echo.
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.).
The other visible light and near-infrared bands have a resolution of 1 km (0.62 mi), while the infrared bands have a resolution of 2 km (1.2 mi) per pixel. [ 26 ] The sensors on the ABI are made of different materials depending on the spectral band, with silicon used for sensors operating in visible light and mercury cadmium telluride used for ...
The National Weather Service (NWS) and NSSL developed the specifications for the modification, which was tested by engineers at the NWS Radar Operations Center. The NWS Warning Decision Training Branch provided timely and relevant training to all NWS forecasters who would be using the technology. The upgraded radars offer 14 new radar products ...
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 ...
Spatial resolution will be dependent on what band is being used - band 2 is the highest resolution out of all channels, with a resolution of 500 m (1,600 ft). Channels 1, 3, and 5 will have a resolution of 1 km (0.6 mi), while all other bands in NIR/IR will have a resolution of 2 km (1.2 mi).
A NWS composite radar image of the Continental United States, composed of many regional radars. The WSR-88D Doppler weather radar system, also called NEXRAD , was developed by the National Weather Service during the mid-1980s, and fully deployed throughout the majority of the United States by 1997.
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