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Acronyms AGL Above Ground Level ASL Above (Radar) Site Level AS OS Automated Surface Observing System AWIPS Advanced Weather Interactive Processing System cm centimeters dB decibels dBZ decibels (radar reflectivity ratio) DoD Department of Defense DV1P Digital Video Integrating Processor FAR False Alarm Ratio GOES Geostationary Operational Environmental Satellite ICRAD Interactive Color Radar Display kbs kilobits per second km kilometers MARD Modernization and Associated Restructuring Demonstration mbs megabits per second NEXRAD Next Generation Weather Radar NOAA National Oceanic and Atmospheric Administration NRC National Research Council NWS National Weather Service NWSMC National Weather Service Modernization Committee O&M Operations and maintenance POD Probability of Detection PUP Principal User Processor RADAP IT Radar Data Processor IT RDA Radar Data Acquisition RFC River Forecast Center RPG Radar Product Generator SNR Signal to noise ratio TVS Tornadic Vortex Signature WFO Weather Forecast Office WSFO Weather Service Forecast Office WSMA Weather Service Modernization Act WSO Weather Service Office WSR-57 Weather Surveillance Radar -- 1957 (S band) WSR-74C Weather Surveillance Radar -- 1974 (C band) WSR-74S Weather Surveillance Radar -- 1974 (S band) WSR-88D Weather Surveillance Radar -- 1988 Doppler (S band) 58