Research on Improving Detection Capability of Small and Medium Scales Based on Dual Polarization Weather Radar

Abstract

In the process of strong convection, tornadoes, downbursts, hail, and thunderstorms are small in scale, and they are generated and dissipated quickly, which is an important reason for local weather disasters. Dual polarization weather radar is an important tool for meteorological monitoring. However, different types of dual polarization weather radar have certain shortcomings in small and medium scale weather detection. Based on the characteristics of different types of dual–polarization weather radars, this paper develops a radar detection system for small and medium–scale weather processes, and enhances the dual–polarization weather radar’s ability to detect small and medium–scale weather. By improving the space-time resolution of the new generation of dual-polarization radars in the S–band, and enhancing its own detection capabilities; at the same time developing multi–band, multi-model dual–polarization radar collaborative observation schemes, research and development of data fusion and weather warning systems, and observation data for multiple devices Carry out check and fusion of the same elements, and output the fused meteorological products and early warning information, so as to realize the strong convective storm warning, storm cell identification and tracking in the small and medium-scale weather system.