[1]王清川,彭敏,周涛,等.一次罕见超级单体风暴的X波段双偏振雷达特征分析[J].气象研究与应用,2022,43(01):107-111.[doi:10.19849/j.cnki.CN45-1356/P.2022.1.19]
　Wang Qingchuan,Peng Min,Zhou Tao,et al.Characteristic analysis of X-band dual polarization radar for a rare supercell storm[J].Journal of Meteorological Research and Application,2022,43(01):107-111.[doi:10.19849/j.cnki.CN45-1356/P.2022.1.19]
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一次罕见超级单体风暴的X波段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43卷
期数:
2022年01期
页码:
107-111
栏目:
技术总结
出版日期:
2022-03-25

文章信息/Info

Title:
Characteristic analysis of X-band dual polarization radar for a rare supercell storm
作者:
王清川1;  彭敏2;  周涛1;  东高红3;  黄浩杰1;  王鹤婷1
1. 河北省廊坊市气象局, 廊坊 065000;
2. 河北省人工影响天气中心, 石家庄 050021;
3. 天津市气象台, 天津 300074
Author(s):
Wang Qingchuan1;  Peng Min2;  Zhou Tao1;  Dong Gaohong3;  Huang Haojie1;  Wang Heting1
1. Langfang Meteorological Bureau, Langfang Hebei 065000, China;
2. Hebei Weather Modification Center, Shijiazhuang 050021, China;
3. Tianjin Meteorological Observatory, Tianjin 300074, China
关键词:
双偏振雷达; 超级单体风暴; 短时临近监测预报
Keywords:
dual polarization radar; supercell storm; short-term proximity monitoring and prediction
分类号:
P458
DOI:
10.19849/j.cnki.CN45-1356/P.2022.1.19
摘要:
利用北京房山X波段双偏振雷达资料,对2020年6月25日北京市东南部及其周边地区的一次超级单体风暴进行分析。结果表明,高空冷涡前部槽叠加地面冷锋系统是此次超级单体风暴发生的背景条件,强垂直风切变为其发展维持提供了有利的环境条件。演变过程中的有界弱回波区、三体散射等超级单体雷达典型特征明显。X波段双偏振雷达反射率因子50dBz及以上强回波向高层伸展后迅速下降,预示着地面大风或冰雹即将出现;偏振参量中ZDR弧、前倾ZDR柱的出现可用于冰雹临近预警,KDP柱特别是KDP悬垂的出现预示着强降雨即将发生,其位置与雨强中心存在较好的对应关系;三维空间图像可以直观地展现超级单体的空间结构特征。
Abstract:
Based on the X-band dual polarization radar data of Fangshan,Beijing,a supercell storm in the southeast of Beijing and its surrounding areas on June 25,2020 was analyzed.The results show that the superimposed ground cold front system in the front slot of the high-altitude cold vortex was the background condition of the supercell storm,and the strong vertical wind shear provided favorable environmental conditions for its development and maintenance.Typical characteristics of super monomer radar such as bounded weak echo area and three-body scattering appeared in the evolution process.The reflectivity factor of X-band dual polarization radar was 50dBz and above,and the strong echo dropped rapidly after extending to the high level,indicating that the ground gale or hail was about to appear.The appearance of ZDR arc and forward-inclined ZDR column in polarization parameters can be used for hail imminent warning.The appearance of the KDP column,especially the KDP overhang,indicated that heavy rainfall was about to occur,and its position had a good corresponding relationship with the rain intensity center.Three-dimensional spatial images can intuitively show the spatial structure characteristics of supercells.

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备注/Memo

备注/Memo:
收稿日期:2021-11-02。
基金项目:中国气象局预报员专项(CMAYBY2020-012)、河北省气象局科技项目(21zc06)和廊坊市气象局科技项目(202101)
作者简介:王清川,硕士,高级工程师,主要从事灾害性天气短临预报预警研究。E-mail:hblfwqc@163.com
通讯作者:东高红,硕士,正研级高工,主要从事城市气象和中尺度天气预报技术研究。E-mail:qwerty8825@sina.com
更新日期/Last Update: 1900-01-01