XPOL is a compact, transportable polarimetric weather radar. A photograph shows an XPOL system delivered to the US National Center for Atmospheric Research (NCAR) in 2012.
Based on a modified marine radar RF unit, the XPOL system achieves high performance at a low cost. XPOL is specifically designed to sample backscatter from precipitation over an area of approximately 70 km x 70 km. XPOL collects reflectivity, Doppler velocity data, key polarimetric radar parameters, to characterize clouds and precipitation.
The measured polarimetric radar data is automatically post-processed and displayed with Titan/Hawkeye software (developed by NCAR) to provide real-time meteorological data products (Z, Vel, σvel, Zdr, Φdp, Kdp, ρhv). The Hawkeye software package also provides hydrometeor classifications and automatic warnings for storms, hail and heavy rain.