OU-PRIME (Polarimetric Radar for Innovations in Meteorology and Engineering) was an advanced Doppler weather radar. It was completed in January 2009 after a ten-month construction period and commissioned on April 4, 2009. It was operated by the Advanced Radar Research Center (ARRC) at the University of Oklahoma (OU). The radar was manufactured by Enterprise Electronics Corporation to provide OU students and faculty a platform for research and education in the field of radar meteorology. This C-band polarimetric radar has some of the highest resolution data of any C-band weather radar in the United States.
OU-PRIME was struck by lightning on 19 March 2012 around 9:20am local time. Since then, the radar has not been operated due to damage.
System characteristics OU-PRIME, aka OU', is located on the Research Campus of the University of Oklahoma within walking distance of the National Weather Center building. Through a unique design, OU-PRIME can provide real-time time-series data providing opportunities for rapid developments in radar signal processing algorithms. Because of its C-band wavelength and 1 MW transmit power, OU-PRIME is extremely sensitive to clouds with approximately 10 dB more sensitivity over the NEXRAD system (S-band).
Characteristics: Location Radiating Center Height is 80 feet (24.4 m) Operating frequency: 5510 MHz (C-band) Wavelength: 5.44 cm Pulse Length: 0.4, 0.8, 1.0, 2.0 μs Pulse Repetition Frequency: 300–2000 Hz, 1 Hz step 1 MW Peak Power (magnetron with solid-state modulator) 8.5-meter Andrew precision C-band dish High angular resolution: 0.45 degrees @ -3 dB points Gain: 50 dBi Sidelobe Level: Better than -26 dB one-way Cross-Pol: Better than -30 dB Rotation rate: 6-25 deg/s under typical scanning (30 deg/s max) Minimum Detectable Signal: -112 dBm Radar Sensitivity: -15 dBZ at 50 km Noise Figure: 3 dB Simultaneous dual-polarization Flexible computing platform for real-time algorithm development Real-time I/Q data recording/processing A/D converter resolution: 16 bit Receiver bandwidth: 6 MHz Gate spacing: 25–500 m Number of range gates: up to 2200 Clutter suppression: 60 dB (automatic detection/suppression using CLEAN-AP ) Advanced signal processing framework based on new STEP algorithm, including clutter estimation/suppression and multi-lag moment estimation
Research and educational pursuits
An integral part of OU's Weather Radar Curriculum Non-precipitating cloud studies Advanced signal processing algorithm development (e.g. Doppler spectrum) Weather radar polarimetry / QPE Next-generation digital receiver design Severe weather detection algorithms based on spectral processing Precipitation microphysics Radar-based aerobiology Adaptive real-time processing Cloud physics and electrification Storm dynamics
External links
University of Oklahoma opens student access to advanced weather radar, Tulsa World, April 2009. New weather radar unveiled at Univ. of Oklahoma, USA TODAY, April 2009.
References