气象水文海洋仪器2025，Vol.42Issue(3)：1-4,4.
X波段双偏振天气雷达MaX-PoI数据分析威宁县冰雹微物理过程
X-band dual polarization weather radar MaX-PoI data analysis of hail microphysical processes in Weining County
摘要
Abstract
The article selects 34 hail cloud units and 26 available hail data observed by the X-band dual polarization weather radar in Weining Yi,Hui,and Miao Autonomous County(referred to as"Weining County")in 2022 for analysis,focusing on the structural characteristics,polarization parameters,and phase distribution characteristics of convective units.By analyzing and comparing with the actual situation,it is concluded that the typical characteristic quantities of convective cell radar echoes are basically consistent.The recognition effects of reflectivity factor,differential reflectivity,and correlation coefficient on meteorological echoes and non meteorological echoes are tested.The accumulated water content zone is mainly distributed within a range of±2.0 km above the 0℃ layer.When the radar echo intensity of convective cells develops from 45 dBZ to above 55 dBZ,hail clouds have the characteristics of rapid development and long duration.The X-band dual polarization weather radar can effectively reflect the types of precipitation particles and conforms to the characteristics of phase distribution,but the transformation of precipitation phase particles in the critical transition zone should be considered.The duration of convective cells and the distribution of accumulated water content zones in Weining County are not conducive to the formation of hail.When the top height of the strong center echo breaks through the-30℃ layer,large hail will appear.关键词
双偏振雷达/冰雹/对流单体/粒子相态Key words
dual polarization radar/hail/convective cells/particle phase state分类
天文与地球科学引用本文复制引用
张艳,蔡军,陈林,蔡彤,阎廷,柯莉萍..X波段双偏振天气雷达MaX-PoI数据分析威宁县冰雹微物理过程[J].气象水文海洋仪器,2025,42(3):1-4,4.基金项目
中国气象局大气探测重点开放实验室联合基金开放课题"双偏振人影雷达预测与检验冰雹过程研究"(U2021Z02)资助. （U2021Z02）
