Polarization Radar Observations on Hailstorms
偏振雷达观测强对流雹暴云

Detailed echo information of horizontal reflectivity ZH and differential reflectivity Z_(DR) were obtained by C-band dual linear polarization weather radar observations of four hailstorms in evolution process in August 1990. And based on polarization radar principles, we have analysed these echo parameters and polarization characteristic in their different evolution stages, and found Z_(DR) echo column is a distinct echo signature for discriminating fallhails. We have also used Z_H and Z_(DR) dual parameters technique to identify hails from mixed rains and hails, and alalysic the results.