[1]王婷,唐桥义,王娟,等.桂林重大短时强降水时空分布特征[J].气象研究与应用,2023,44(03):57-61.[doi:10.19849/j.cnki.CN45-1356/P.2023.3.10]
　WANG Ting,TANG Qiaoyi,WANG Juan,et al.Temporal and spatial distribution of short-time severe rainfall in Guilin[J].Journal of Meteorological Research and Application,2023,44(03):57-61.[doi:10.19849/j.cnki.CN45-1356/P.2023.3.10]
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桂林重大短时强降水时空分布特征()
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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:
57-61
栏目:
出版日期:
2023-09-15

文章信息/Info

Title:
Temporal and spatial distribution of short-time severe rainfall in Guilin
作者:
王婷;  唐桥义;  王娟;  吴芳芳
桂林市气象局, 广西 桂林 541001
Author(s):
WANG Ting;  TANG Qiaoyi;  WANG Juan;  WU Fangfang
Guilin Meteorological Bureau, Guangxi Guilin 541001, China
关键词:
重大短时强降水; 频次; 时空分布
Keywords:
short-time severe rainfall; frequency; characteristics of the temporal and spatial
分类号:
P426.6
DOI:
10.19849/j.cnki.CN45-1356/P.2023.3.10
摘要:
利用常规气象观测资料、区域气象自动站资料和MICAPS格式资料,对2018-2022年广西桂林重大短时强降水时空分布和形成机理进行分析。结果表明,近5a桂林重大短时强降水2019年出现频次最多,2018年最少;重大短时强降水天气出现在2-9月,6月最多,其次是5月和7月。日变化特征明显,01时频次最多,其次是02时和03时,夜间频次多于白天,下半夜频次多于上半夜。桂林重大短时强降水具有明显的空间分布特征,总频次大值区位于资源南部的中峰-兴安北部-灵川北部-市区-临桂北部-永福一线,比传统暴雨带位置更偏北。重大短时强降水发生频次与地形有关,在迎风坡越城岭东南侧,边界层偏南风与地形辐合的地方易出现重大短时强降水。
Abstract:
Based on the conventional observation data, regional automatic station data and MICAPS data, this paper analyzed the characteristics of the temporal and spatial distribution, and formation mechanism of short-time severe rainfall from 2018 to 2022 in Guilin. The results showed that the frequency of short-time severe rainfall was the highest in 2019 and the lowest in 2018. Short-time severe rainfall occurred from February to September, with the highest number in June, followed by May and July. The daily variations were characterized by obvious features, with the highest frequency at 01:00, followed by 02:00 and 03:00, and with more frequency at night than during the day, and more frequency in the second half of the night than in the first half of the night. The short-time severe rainfall had obvious spatial distribution characteristics, and the maximum frequency area was located in the south of Ziyuan- north of Xing’an-north of Lingchuan-Urban district of Guilin-north of Lingui-Yongfu, which was more north than the tradition rainstorm belt. The frequency of short-time severe rainfall was related to the terrain, and the short-time severe rainfall was easy to occur on the windward slope, southeast of the Yuecheng Ridge, where the southerly wind of the boundary layer converges with the terrain.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2022-10-20。
基金项目:广西气象科研计划项目(2021M04)、桂林市重点研发计划项目(20220118-3)
作者简介:王婷(1990-),女,工程师,从事综合观测工作。E-mail:373126774@qq.com
通讯作者:王娟(1985-),女,高级工程师,主要从事天气预报工作。E-mail:wxhcmf@163.com
更新日期/Last Update: 1900-01-01