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The WSR-88D is one of the most powerful and advanced Weather Surveillance Doppler Radar in the world. Since first being built and tested in 1988, it has been installed and used operationally at over 160 locations across the United States, including Alaska and Hawaii.
Its technical name is WSR-88D (Weather Surveillance Radar, 1988, Doppler). NEXRAD detects precipitation and atmospheric movement or wind. It returns data which when processed can be displayed in a mosaic map which shows patterns of precipitation and its movement.
The severe weather and motion detection capabilities offered by the WSR-88D increase the accuracy and timeliness of National Weather Service warning services. View the latest radar images from the WSR-88D at Fort Dix, NJ, which provides full coverage of the NWS Mount Holly forecast area.
The WSR-88D is made up of two functional components: Radar Data Acquisition (RDA) and the Radar Product Generator (RPG). RPG products are widely distributed and displayed on various radar product visualization systems.
The individual radar unit, WSR-88D, or NEXRAD, is the most advanced operational weather radar (ie: used in real-time for weather forecasts and severe weather warnings) in the world. The network of radars operate 24/7 providing precipitation and wind data to meteorologists in support of warning and forecast operations.
The first step in acquiring radar data is the transmission of a radio frequency (RF) signal. The WSR-88D uses a RF signal transmitted from a klystron amplifier. The klystron amplifier produces a coherent signal with a precisely controlled amplitude, frequency, and phase. The WSR-88D transmits this high frequency
The combined current system is the Weather Surveillance Radar 1988-Doppler system (WSR-88D), also known as NEXtgeneration RADar (NEXRAD), with 159 operational stations across the country and U.S. territories.
In the early '88D design, the WSR-88D radar system used the OMT and separate waveguide feeds for transmit and receive modes, allowing the traditional theory (as detailed in the discussion on pages 15 and 16) of circularly polarized detection to be reversed. In these '88Ds, the mirror-image left-hand polarized echoes were passed easily into the ...
The WSR-88D is a software-driven stand alone system which detects, processes, displays, and distributes radar weather information. The system is primarily comprised of five (5) major groups of equipment.
The current Next Generation Weather Radar (NEXRAD) system provides Doppler radar coverage to most regions of the United States (NRC, 1995). This network was designed in the mid 1980s and deployed in the 1990s as part of the National Weather Service (NWS) modernization (NRC, 1999).