[1]周坤论,黄剑钊,王玮,等.柳州2022年“龙舟水”过程一次降水的雨滴谱特征分析[J].气象研究与应用,2023,44(01):87-93.[doi:10.19849/j.cnki.CN45-1356/P.2023.1.15]
　Zhou Kunlun,Huang Jianzhao,Wang Wei,et al.Analysis of the raindrop spectrum characteristics of a dragon-boat precipitation process in Liuzhou city in 2022[J].Journal of Meteorological Research and Application,2023,44(01):87-93.[doi:10.19849/j.cnki.CN45-1356/P.2023.1.15]
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柳州2022年“龙舟水”过程一次降水的雨滴谱特征分析()
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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:
87-93
栏目:
龙舟水专刊
出版日期:
2023-03-15

文章信息/Info

Title:
Analysis of the raindrop spectrum characteristics of a dragon-boat precipitation process in Liuzhou city in 2022
作者:
周坤论;  黄剑钊;  王玮;  吕抒航
广西壮族自治区气象技术装备中心, 南宁 530022
Author(s):
Zhou Kunlun;  Huang Jianzhao;  Wang Wei;  Lv Shuhang
Guangxi Meteorological Technical Equipment Center, Nanning 530022, China
关键词:
柳州; “龙舟水”; 雨滴谱; 雨量站; 雨强
Keywords:
Liuzhou; dragon-boat precipitation; raindrop spectrum; rainfall station; rain intensity
分类号:
P426.6
DOI:
10.19849/j.cnki.CN45-1356/P.2023.1.15
摘要:
利用柳州国家站DSG5型降水现象仪(雨滴谱仪)对柳州2022年6月16日18时-17日11时暴雨过程的雨滴谱特征进行分析,并与自动雨量传感器(雨量筒)数据对比,探究不同雨强范围雨滴谱特征。结果表明:(1)雨滴谱仪和雨量筒的累积降雨量具有很好的一致性,相关性系数达到0.99;降水量与分钟粒子数呈强相关(0.82)。(2)降水量的多少不仅仅由雨滴粒子的数量决定,还取决于雨滴粒子的直径;本次降水主体以粒径小于3 mm的雨滴粒子为主;降水贡献主体以1~4mm的雨滴粒子为主。(3)雨强增大,雨滴粒子数密度逐渐增大,小雨滴更容易合并成大雨滴。(4)无论雨强大小,粒子数占比均随粒径区间的增加而下降,小雨滴粒子占比始终最高;随着雨强增大,小雨滴(D ≤ 2 mm)降水贡献率占比下降,大雨滴(D > 2 mm)降水贡献率占比升高,进一步表明雨强增大,对流增强。
Abstract:
Using the DSG5 precipitation phenomenon instrument(raindrop spectrometer) of Liuzhou National Station, the characteristics of raindrop spectrum were analyzed from 18:00 on June 16 to 11:00 on June 17,2022, and were compared with the data of the automatic rainfall sensor (rain gauge) to explore the characteristics of the raindrop spectrum in different rain intensity ranges. The results show that:(1)The cumulative rainfall obtained from the raindrop spectrometer and the rain gauge has a good consistency with a correlation coefficient of 0.99; There is a strong correlation between precipitation and the particle number per minute with a correlation coefficient of 0.82; The amount of precipitation not only depends on the number of raindrop particles, but also depends on the diameter of raindrop particles; The main part of this precipitation is dominated by the raindrop particles less than 3mm in size; The main contribution of precipitation is dominated by 1~4mm raindrop particles.(2)With the increase of rain intensity, the number density of raindrop particles gradually increases, and the small raindrops are more likely to merge into large raindrops, and the collision between raindrop particles is more intense, resulting in more small raindrop particles or merging into more large raindrops;(3)Regardless of the rain intensity, the proportion of particles decreases with the increase of the particle size, and the proportion of small raindrops is always the highest; With the increase of rainfall intensity, the proportion of precipitation contribution of small raindrops (D ≤ 2 mm) decreases, and the proportion of precipitation contribution of large raindrops (D>2 mm) increases, which further indicates that the convection increases with increasing rain intensity.

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备注/Memo

备注/Memo:
收稿日期:2022-11-25。
基金项目:广西壮族自治区气象局青年人才培养项目(桂气科2022QN09)、广西壮族自治区气象技术装备中心自立项目"降水过程雨滴谱的统计特征研究"
作者简介:周坤论(1994-),男,工程师,从事气象探测技术保障和雨滴谱特征研究。E-mail:980289314@qq.com
更新日期/Last Update: 1900-01-01