[1]刘蕾,陈茂钦,张凌云.柳州锋前暖区暴雨的分型及统计特征分析[J].气象研究与应用,2016,37(04):12-17.
　LIU Lei,CHEN Mao-qin,ZHANG Lin-yun.Statistical Analysis and classification of prefrontal Warm-sector Heavy Rainfall in Liu Zhou[J].Journal of Meteorological Research and Application,2016,37(04):12-17.
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柳州锋前暖区暴雨的分型及统计特征分析()
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气象研究与应用[ISSN:1673-8411/CN:45-1356/P]

卷:
第37卷
期数:
2016年04期
页码:
12-17
栏目:
天气气候
出版日期:
2017-02-20

文章信息/Info

Title:
Statistical Analysis and classification of prefrontal Warm-sector Heavy Rainfall in Liu Zhou
作者:
刘蕾1;  陈茂钦2;  张凌云1
1 广西柳州市气象局, 广西柳州 545001;
2 中国人民解放军 95337 部队, 广西柳州 545001
Author(s):
LIU Lei1;  CHEN Mao-qin2;  ZHANG Lin-yun1
1. Liuzhou Meteorological Bureau, Liuzhou Guangxi 545001;
2. The Chinese people’s Liberation Army 95337 Unit, Liuzhou Guangxi 545001
关键词:
暖区暴雨; 天气学; 统计特征
Keywords:
warm-sector rainstorm; synoptic meteorology; statistical analysis
分类号:
P46
摘要:
利用常规气象资料、区域自动站资料、NCEP/NCAR再分析资料,根据暴雨发生时850hPa影响系统的不同,对2010-2015年柳州市暖区暴雨过程按南风型、切变型、低涡型进行分型,并对其影响系统特征进行统计分析,结果表明:柳州锋前暖区暴雨峰值出现在6月份;三类型暖区暴雨基本都受南亚高压影响,高层有较强的辐散机制,中层有低值系统活动;暴雨过程中,低空急流甚至超低空急流的出现为暴雨区提供了大量的水汽辐合,使得暴雨区不稳定层结得以建立和维持;边界层以下的中尺度辐合线和较强的风速辐合是暖区暴雨的重要触发机制。
Abstract:
Based on conventional meteorological data, regional automatic station data and NCEP/NCAR reanalysis data, the warm-sector rainstorms 2010-2015 in Liuzhou region were divided into the south-wind, variant shear, low vortex type by 850 hpa affecting system when the heavy rain occurred, and the characteristics of effecting systems were statistically analyzed. The results show that Liuzhou prefrontal warmer-area rainstorm peak appears in the June; Three types of heavy rain are all affected by the South Asia high pressure, and in the high level, there is the strong divergence mechanism, while in the middle level has low system activity; During the rainstorm, the emergence of low level jet, even the extra low-level jet provided huge amount of water vapor convergence, which makes the unstable stratification in the heavy rain area develop and maintain; The mesoscale convergence line below boundary layer and strong wind speed convergence is the important triggering mechanism for warm area heavy rain.

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备注/Memo

备注/Memo:
收稿日期:2016-09-15。
基金项目:柳州市气象局2015年市局自立项目,广西区气象局气象科研计划(桂气科2016M15)。
作者简介:刘蕾(1987-),女,工程师,主要从事短期预报工作,E-mail:smile_liulei@163.com
更新日期/Last Update: 1900-01-01