Study on Attenuation Correction for the Reflectivity of X-Band Dual-Polarization Phased-Array Weather Radar Based on a Network with S-Band Weather Radar

X-band dual-polarization phased-array weather radars (X-PARs) have been used in South China extensively. Eliminating the attenuation and system bias of radar data is key to utilizing advantage X-PAR networks. In this paper, disdrometer raindrop-size distribution (DSD) measurements are calculate polarimetric variables analyze characteristics precipitation attenuation. Furthermore, based on network S-band Doppler (S-POL) X-PARs, an attenuation-correction method for reflectivity proposed with S-POL constraints view radar-mosaic requirements a multi-radar network. Linear programming parameters different rainfall areas, which realizes correction X-PAR. The results show that simulated DSD vary classification; attenuation-corrected X-PARs consistent can realize more precise observation evolution convective system. Compared previous methods constant parameters, improved reduce deviation between heavy areas strong paper stable effective. After effective quality control, it found deployed observes accurately S-POL; thus, expected achieve high temporal–spatial resolution within mosaic.