[1]陆秋霖,李秀昌,林确略,等.玉林市2023年3月25日冰雹过程双偏振雷达特征分析[J].气象研究与应用,2023,44(03):84-89.[doi:10.19849/j.cnki.CN45-1356/P.2023.3.15]
　LU Qiulin,LI Xiuchang,LIN Quelue,et al.Dual-polarization Radar characteristics analysis of a spring hail process on March 25，2023 in Yulin[J].Journal of Meteorological Research and Application,2023,44(03):84-89.[doi:10.19849/j.cnki.CN45-1356/P.2023.3.15]
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玉林市2023年3月25日冰雹过程双偏振雷达特征分析()
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气象研究与应用[ISSN:1673-8411/CN:45-1356/P]

卷:
第44卷
期数:
2023年03期
页码:
84-89
栏目:
出版日期:
2023-09-15

文章信息/Info

Title:
Dual-polarization Radar characteristics analysis of a spring hail process on March 25，2023 in Yulin
作者:
陆秋霖1;  李秀昌1;  林确略1;  朱振华2
1. 玉林市气象局, 广西 玉林 537000;
2. 陆川县气象局, 广西 陆川 537700
Author(s):
LU Qiulin1;  LI Xiuchang1;  LIN Quelue1;  ZHU Zhenhua2
1. Yulin Meteorological Bureau, Guangxi Yulin 537000, China;
2. Luchuan Meteorological Bureau, Guangxi Luchuan 537700, China
关键词:
冰雹; 双偏振雷达; 三体散射; 微差反射率; 相关系数; 比微差相移
Keywords:
hail; dual-polarization radar; three-body scattering; differential reflectance; vorrelation coefficient; specific differential phase
分类号:
P458.1+21.2
DOI:
10.19849/j.cnki.CN45-1356/P.2023.3.15
摘要:
利用常规气象观测资料和双偏振雷达资料,采用天气诊断分析方法,分析玉林市2023年3月25日冰雹过程的成因和双偏振雷达特征。结果表明:(1)此次冰雹天气是受高空槽、低层切变线和地面冷空气共同影响产生。(2)反射率因子强度均>60 dBZ,低层有入流缺口、有界弱回波区、三体散射和旁瓣回波等特征,中气旋厚度较厚,维持时间长。(3)上升气流中存在一定数量的液态雨滴和冰晶粒子;0℃层以下有一定数量的液态粒子和湿冰粒子,而0℃层以上有较大尺寸的冰晶粒子。
Abstract:
The causes and the dual-polarization radar characteristics of the hail process on March 25,2023 in Yulin were revealed by using conventional meteorological observation data and Dual-polarization radar data. The results showed that:(1)The hail process was caused by the joint influence of an upper trough, lower shear line and cold air on the ground. (2)The reflectance factor intensities of radar echoes were>60 dBZ, and there were an inflow notch, a bounded weak echo region, three-body scattering and parabolic echoes in the lower layer. The mesocyclone was thick and maintained a long time.(3)There were a certain number of liquid raindrops and ice crystal particles in the updraft, and there were a certain number of liquid particles and wet ice particles below 0℃ layer, while there were large size ice crystal particles above 0℃ layer.

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备注/Memo

备注/Memo:
收稿日期:2023-5-24。
基金项目:玉林市气象局科研项目(玉气科[2021]04)
作者简介:陆秋霖(1990-),女,工程师,从事短期天气预报工作。E-mail:383025831@qq.com
更新日期/Last Update: 1900-01-01