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Model ARC-C250P – C-band -Polarimetric Doppler Weather Radar System
The ARC C250P radar is designed for high quality data acquisition and analysis in both research and operational settings. ARC utilizes the NCAR-developed TITAN/CIDD radar product generation and display software, which has been refined through decades of research and operational use around the planet, for both standard and polarimetric radar products. The ARC C250P has been implemented for studying precipitation variability and Quantitative Precipitation Estimation (QPE) for water resource management. It is an ideal operational system for monitoring severe and hazardous weather in real-time, as well as for post-event research and analysis of severe and hazardous weather and cloud and precipitation formation.
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Antenna/Pedestal Specifications
- Dish Diameter: 4.3 meters (Beamwidth: 0.95 degrees)
- Polarization:
- Simultaneous Horizontal and Vertical (SHV), Horizontal (Hor) or Vertical (Ver) modes
- Long-life, powerful, brushless AC servo motors
- Maintenance free,sealed, low backlash gearboxes
- Fabricated using COTS products to ensure parts support into the future
- Azimuth range 360 degrees
- Elevation Range -5 to 95 degrees
- Pointing accuracy .05 degrees
- Velocity accuracy .05 degrees/ second
- Scan types:
- Surveillance (360 degrees) with elevation step
- PPI sector scan with elevation step
- RHI scan with azimuth step
- Raster scan around the sun
- Sun tracking
Transmitter Specifications
- Magnetron transmitter
- Peak Power: 250 kW – (350 KW Option)
- Frequency: 5.5 – 5.7 GHz
- PRF: 160 to 2.5 kHz
- Z (Equivalent radar reflectivity factor, dBZ)
- V (Doppler radial velocity, m/s)
- W (Velocity spectrum width, m/s)
- P (Power received, dBm)
- Zdr (Differential reflectivity)
- Phi-dp (Differential phase)
- Kdp (Specific differential phase)
- Rho-hv (Co-polar correlation)
- NCP/SQI (Normalized Coherent Power/Signal Quality Index)
- Zcoh (Coherent equivalent radar reflectivity factor, dBZ)
- Phase (Differential and Absolute phase)
