气象水文海洋仪器2025，Vol.42Issue(3)：104-107,4.
威宁县冰雹时空分布特征与预警指标分析
Analysis of spatiotemporal distribution characteristics and warning indicators of hail in Weining County
摘要
Abstract
Using hail data and radar data collected from 37 artillery stations in Weining Yi,Hui,and Miao Autonomous County,Guizhou Province(referred to as"Weining County")from 2013 to 2022,the spatiotemporal distribution characteristics and radar echo parameters of hail in Weining County were analyzed,and the spatiotemporal distribution characteristics and hail warning indicators of hail in Weining County were obtained.Research has found that the hail process in Weining County mainly occurs from the afternoon of February to September before 22:00,with the highest frequency of hail occurring from 17:00-18:00.Three hail belts formed in Weining County from the northwest,north,and south.There is a significant increase in the top height of the 45-50 dBZ echo 10 minutes before hail,and the correlation coefficient of the strong echo center greater than 50 dBZ during hail has obvious changes,which can be used as a partial indicator for hail warning.The research results provide reference for hail warning and artificial weather modification scientific operations in Weining County.关键词
冰雹分布/双偏振/X波段/相关系数/预警指标Key words
hail distribution/dual polarization/X-band/correlation coefficient/early warning indicators分类
大气科学引用本文复制引用
张玉逵,吕静,张丹,余吕,张孝秀,李文倩..威宁县冰雹时空分布特征与预警指标分析[J].气象水文海洋仪器,2025,42(3):104-107,4.基金项目
毕节市科技计划项目"X波段双线偏振雷达在冰雹监测预警中的研究"(毕科合[2023]108号)和贵州省气象局科研业务项目"威宁县冰雹时空分布特征及预警指标研究"(黔气科登[2021]11-11号)资助. （毕科合[2023]108号）
