【摘要】 利用双偏振多普勒雷达产品，以及常规气象资料、自动气象站资料、探空资料等，对2024年4月25日广西梧州市蒙山县一次冰雹大风天气过程进行分析。结果表明，此次风雹发生在大尺度高空波动、切变线、低空急流、地面倒槽和弱冷空气共同影响的天气背景下，环境条件表现为上干下湿的不稳定层结、较强的垂直风切变以及适宜的0℃和-20℃层高度。雷达分析表明，冰雹由一超级单体（超单）引发，其具有显著的三体散射（TBSS）、有界弱回波区、中气旋及径向辐合特征，VIL（垂直积分液态水）、Z_DR（差分反射率）、CC（相关系数）、K_DP（比差分相位）等双偏振参数对冰雹粒子也有明确的指示作用。更多还原

【Abstract】 Using dual-polarization Doppler radar products, along with conventional meteorological data,automatic weather station data, and sounding data, an analysis was conducted on a hail and gale event that occurred in Mengshan County, Wuzhou City, Guangxi on April 25, 2024. The results indicate that this hail and gale event occurred within a weather context characterized by large-scale upper-level waves, shear lines, lowlevel jets, surface inverted troughs, and weak cold air. The environmental conditions were characterized by an unstable stratification with dry air at upper layers and moist air at lower layers, strong vertical wind shear, and suitable heights for the 0 ℃ and-20 ℃ levels. Radar analysis revealed that the hail was triggered by a supercell thunderstorm, which exhibited features such as a pronounced three-body scatter signature（TBSS）, bounded weak echo zones, mesocyclone, and radial convergence. Dual-polarization parameters, including vertically integrated liquid water（VIL）, differential reflectivity(Z_DR), correlation coefficient（CC）, and specific differential phase(K_DP),also provided clear indications of hail particles.更多还原