TIAN Bai,ZHENG Jingguang,MA Zhongyuan,et al.Analysis of Radar Echo Characteristics of a Large Hailstorm in Spring in Jiangxi Province[J].Journal of Chengdu University of Information Technology,2025,40(01):79-84.[doi:10.16836/j.cnki.jcuit.2025.01.012]
江西春季一次大冰雹的雷达回波特征分析
- Title:
- Analysis of Radar Echo Characteristics of a Large Hailstorm in Spring in Jiangxi Province
- 文章编号:
- 2096-1618(2025)01-0079-06
- Keywords:
- large hail; super monomer; echo characteristics
- 分类号:
- P446
- 文献标志码:
- A
- 摘要:
- 为更好地做好冰雹天气的监测预警工作,使用MICAPS天气图、雷达拼图、雷达PUP产品等资料,采用天气学和雷达气象学原理与研究方法,对2021年3月30-31日江西大冰雹过程进行分析。结果表明:(1)500 hPa低槽、850 hPa西南急流、925 hPa切变线和地面倒槽等天气系统,以及大气层结具有“上干下湿”有利条件。(2)≥5 cm的大冰雹回波系统有孤立超级单体和回波带上超级单体两种。其共同特征是:回波强度≥60 dBZ,并有65 dBZ以上的回波核; 60 dBZ强回波面积≥100 km2; 30～60 dBZ强回波梯度(最密集区域距离)≤7 km和具有云砧回波。(3)垂直积分液态水含量(VIL)达到60 kg/m2; 径向速度V0.5°仰角具有正负速度对; 反射率因子垂直剖面(RCS)有悬挂、穹窿、回波墙等特殊回波结构; 径向速度垂直剖面(VCS)具有辐合型气旋结构。(4)超级单体在3 km等高平面显示(CAPPI)上,反射率因子都在60 dBZ以上,有65 dBZ回波核,风场处于辐合型气旋性环流中。上述研究结果有助于大冰雹天气雷达回波特征的认识和应用。
- Abstract:
- To better monitor and warn of hail weather, MICAPS weather maps, radar puzzles, radar PUP products, and other data were used. The principles and research methods of weather science and radar meteorology were adopted to analyze the process of severe hail in Jiangxi from March 30 to 31, 2021. The results showed that:(1)Weather systems suchas 500 hPa low trough, 850 hPa southwest jet, 925 hPa shear line, and ground inversion troughs, as well as atmospheric stratification, have favorable conditions for “upper dry and lower wet” conditions.(2)There are two types of large hail echo systems with a diameter of ≥5 cm: isolated supercell and supercell on the echo band. Its common feature is that the echo intensity is ≥60 dBZ, and there are echo nuclei above 65 dBZ; 60 dBZ strong echo area ≥100 km2; 30-60 dBZ strong echo gradient(distance from the densest area)≤7 km and with cloud anvil echoes.(3)Vertical integrated liquid water content(VIL)reaches 60 kg/m2; The radial velocity V0.5 ° has positive and negative velocity pairs at an elevation angle; The reflectivity factor vertical profile(RCS)has special echo structures such as suspension, dome, and echo wall; The radial velocity vertical profile(VCS)has a convergent cyclone structure.(4)On the 3 km contour plane display(CAPPI), the reflectivity factor of the supercell is above 60 dBZ, with a 65 dBZ echo core, and the wind field is in a converging cyclonic circulation. The above research results contribute to the understanding and application of radar echo characteristics in heavy hail weather.
参考文献/References:
[1] 俞小鼎,姚秀萍,熊廷南,等.多普勒天气雷达原理与业务应用[M].北京:气象出版社,2006.
[2] 俞小鼎,王秀明,李万莉,等.雷暴与强对流临近预报[M].北京:气象出版社,2020.
[3] 赵文慧,姚展予,贾烁,等.1961-2015年中国地区冰雹持续时间的时空分布特征及影响因子研究[J].大气科学,2019,43(3):539-551.
[4] 王培涛,王凤娇,张婷婷.山东滨州地区冰雹天气分型和预报方法研究[J].沙漠与绿洲气象,2019,13(3):33-40.
[5] 曾智琳,谌芸,朱克云,等.广东省大冰雹事件的层结特征与融化效应[J].大气科学,2019,43(3):598-617.
[6] 张小娟,陶玥,刘国强,等.一次冰雹天气过程的云系发展演变及云物理特征研究[J].气象,2019,45(3):415-425.
[7] 黄玉霞,王宝鉴,王研峰,等.1974-2013年甘肃冰雹日数的变化特征[J].气象,2017,43(4):450-459.
[8] 丁小剑,唐明晖,陈德桥.两次冰雹过程多普勒天气雷达产品的对比分析[J].气象与环境科学,2010,33(2):42-47.
[9] 王研峰,黄武斌,王聚杰,等.一次甘肃天水强冰雹的雷达回波特征及成因分析[J].高原气象,2019,38(2): 368-376.
[10] 王莎,沙勇,宋金妹,等.冀东地区冰雹云多普勒雷达参数特征分析[J].气象,2019,45(5):713-722.
[11] 覃靖,潘海,刘蕾.柳州“4·09”致灾冰雹的超级单体风暴过程分析[J].气象,2017,43(6):745-755.
[12] 陈鲍发,马中元.江西局地冰雹WebGIS雷达拼图回波特征分析[J].气象与环境科学,2019,42(2):104-114.
[13] 刘艳杰,周玉都,马庚雪.河北廊坊冰雹天气特征统计分析[J].气象与环境科学,2018,41(1):110-117.
[14] 张磊,张继韫.一次局地强冰雹的多普勒雷达回波特征分析[J].沙漠与绿洲气象,2013,7(4):26-30.
[15] 徐芬,郑媛媛,肖卉,等.江苏沿江地区一次强冰雹天气的中尺度特征分析[J].气象,2016,42(5):567-577.
[16] 韩颂雨,罗昌荣,魏鸣,等.三雷达、双雷达反演降雹超级单体风暴三维风场结构特征研究[J].气象学报,2017,75(5):757-770.
[17] 黄中根,马中元,谌芸,等.江西两次超级单体风暴雷达回波特征分析[J].气象与环境科学,2022,45(5):39-48.
[18] 段和平,马中元,陈鲍发,等.江西两次强降雹过程的雷达回波特征对比分析[J].沙漠与绿洲气象,2023,17(2):137-145.
[19] 刘懿枢,马中元,魏鸣,等.一次副高控制龙卷雷达回波特征分析[J].沙漠与绿洲气象,2023,17(3):35-43.
[20] 冯爽,娄小芬,陈列.2019年浙江省一次春季强对流天气及雷达回波特征分析[J].科技通报,2020,36(11):8-16.
[21] 张晓冬,庞古乾,林镇国.佛山两次龙卷过程的物理量和雷达资料对比分析[J].科技通报,2017,33(10):46-52.
[22] 王忠东,曹楚.一次局部雹灾的天气学成因及多普勒雷达回波特征分析[J].科技通报,2010,26(1):51-62.
[23] 赵璐,赵放,楼小芬.一次初春强冰雹天气过程分析[J].科技通报,2017,33(10):40-45.
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备注/Memo
收稿日期:2023-09-13
基金项目:中国科学院战略性先导科技专项资助项目(A类-XDA19040202); 国家自然科学基金资助项目(41975001); 江西省科学技术厅2021年省级科技计划资助项目(20212ABC03A29)
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