威宁县一次冰雹天气过程的雨滴谱特征分析  

Analysis of raindrop spectrum characteristics of a hail weather process in Weining County

作　　者：柯莉萍 邹书平[2] 吕静 张艳 阎廷 张孝秀 Ke Liping;Zou Shuping;Lv Jing;Zhang Yan;Yan Ting;Zhang Xiaoxiu(Weining Meteorological Bureau,Weining 553100;Weather Modification Office of Guizhou Province,Guiyang 550081)

机构地区：[1]威宁县气象局,威宁553100 [2]贵州省人工影响天气办公室,贵阳550081

出　　处：《气象水文海洋仪器》2024年第6期75-78,共4页Meteorological,Hydrological and Marine Instruments

基　　金：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]08号)资助。

摘　　要：文章利用贵州省威宁县国家基准气候站2019-06-11一次冰雹天气过程的雨滴谱、自动雨量站和探空、卫星云图资料,采用数理统计等方法对冰雹天气过程的降水粒子数浓度随直径的变化、降水粒子随速度的变化、冰雹过程的雨滴谱微物理量特征以及降水粒子各尺度档对雨强的贡献等方面进行了研究,结果表明:DSG1型降水天气现象仪计算出的数据与威宁国家基准气候站观测的降雨趋势吻合;大直径粒子或系误判,降水粒子呈双峰型,2~5 mm粒子贡献最大;雨滴谱反演的雷达反射率因子与降水强度相关。研究揭示了此次冰雹过程的雨滴谱特征。The article uses the raindrop spectrum,automatic rainfall station,sounding,and satellite cloud image data of a hail weather process in Weining County,Guizhou Province on June 11,2019.Mathematical statistics and other methods are used to study the changes in precipitation particle number concentration with diameter,precipitation particle with velocity,microphysical characteristics of raindrop spectrum during hail process,and the contribution of precipitation particles at different scales to rainfall intensity.The results show that the date calculated the DSG1 precipitation weather phenomenon meter is consistent with the rainfall trend observed by the Weining national reference station.Large diameter particles or misclassified precipitation particles exhibit a bimodal pattern,with 2 mm to 5 mm particles contributing the most.The radar reflectivity factor of raindrop spectrum inversion is related to precipitation intensity.This study reveals the raindrop spectrum characteristics of this hail process.

关 键 词：冰雹 粒子数浓度 雨滴谱特征 反射率因子 

分 类 号：P426.64[天文地球—大气科学及气象学]