[1]韦靖,汤耀国,毛家燊,等.桂北一次极端强降雨过程宏微观物理特征分析[J].气象研究与应用,2023,44(01):81-86.[doi:10.19849/j.cnki.CN45-1356/P.2023.1.14]
　Wei Jing,Tang Yaoguo,Mao Jiashen,et al.Analysis on macro-microscopic physical characteristics of an extreme rainfall process in northern Guangxi[J].Journal of Meteorological Research and Application,2023,44(01):81-86.[doi:10.19849/j.cnki.CN45-1356/P.2023.1.14]
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桂北一次极端强降雨过程宏微观物理特征分析()
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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01期
页码:
81-86
栏目:
龙舟水专刊
出版日期:
2023-03-15

文章信息/Info

Title:
Analysis on macro-microscopic physical characteristics of an extreme rainfall process in northern Guangxi
作者:
韦靖1;  汤耀国2;  毛家燊3;  刘银焕3;  梁丽娜4;  施洁云1
1. 扶绥县气象局, 广西 扶绥 543200;
2. 南宁市气象局, 南宁 530029;
3. 崇左市气象局, 广西 崇左 532200;
4. 环江毛南族自治县气象局, 广西 环江 547100
Author(s):
Wei Jing1;  Tang Yaoguo2;  Mao Jiashen3;  Liu Yinhuan3;  Liang Li’na4;  Shi Jieyun1
1. Fusui Meteorological Bureau, Guangxi Fusui 543200, China;
2. Nanning Meteorological Bureau, Nanning 530029, China;
3. Chongzuo Meteorological Bureau, Guangxi Chongzuo 532200, China;
4. Huanjiang Meteorological Bureau, Guangxi Huanjiang 547100,
关键词:
雨滴谱; 极端强降雨; “龙舟水”; 桂北
Keywords:
raindrop spectrum; extreme rainfall; dragon-boat precipitation; northern Guangxi
分类号:
P458.1+21.1
DOI:
10.19849/j.cnki.CN45-1356/P.2023.1.14
摘要:
利用环江站降水现象仪雨滴谱资料,结合雷达资料、全球再分析资料(FNL资料),分析了桂北地区2022年6月20日"龙舟水"极端强降雨过程的宏微观物理特征。结果表明,此次过程受短波槽和西南急流影响,桂北地区水汽条件和动力条件较好,深厚湿对流发生发展条件有利,"列车效应"导致环江站短时强降水持续出现;雨强与雨滴直径、雨滴数浓度有较好的对应关系,强降雨时段比弱降雨时段具有更大的雨滴直径和更高的雨滴数浓度;不同降雨时段平均谱均呈单峰结构,数浓度峰值均位于0.7 mm粒径附近。
Abstract:
Based on the raindrop spectrum observation collected by the precipitation phenomenometer of Huanjiang station, combined with the radar data and NCEP/NCAR-FNL reanalysis data, the macro-microscopic physical characteristics of an extreme dragon-boat rainfall process in northern Guangxi on June 20,2022, are analyzed. Results show that the process is caused by a short-wave trough and the southwest jet, which can provide adequate moisture conditions and dynamic conditions in northern Guangxi, in favor of the development of deep moist convection, and the training effect leads to the continuous occurrence of short-term heavy rainfall at Huanjiang station. There is good correspondence between the rainfall intensity and the raindrop particle size and raindrop number concentration. Compared with the weak rainfall process, the heavy rainfall process has a larger raindrop particle size and higher raindrop number concentration. The average spectra of the different rainfall periods show a unimodal structure, with the peak values of number concentration located near the particle size of 0.7mm.

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备注/Memo

备注/Memo:
收稿日期:2022-11-16。
基金项目:广西气象科研计划项目(桂气科2022M03)、崇左气象科研项目(崇气科201807-1)
作者简介:韦靖(1996-),女,助理工程师,主要从事县级综合气象业务。E-mail:543721343@qq.com
通讯作者:汤耀国(1987-),男,工程师,主要从事大气环境气象预报。E-mail:247707946@qq.com
更新日期/Last Update: 1900-01-01