[1]杨思施,黄开刚,刘国忠.2013.3.23百色市致灾冰雹天气过程成因分析[J].气象研究与应用,2015,36(02):43-46.
　Yang Si-shi,Huang Kai-gang,Liu Guo-zhong.Analysis on the causes of Hail Process in Baise City on 23th March 2013[J].Journal of Meteorological Research and Application,2015,36(02):43-46.
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2013.3.23百色市致灾冰雹天气过程成因分析()
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气象研究与应用[ISSN:1673-8411/CN:45-1356/P]

卷:
第36卷
期数:
2015年02期
页码:
43-46
栏目:
天气气候
出版日期:
2015-12-21

文章信息/Info

Title:
Analysis on the causes of Hail Process in Baise City on 23th March 2013
作者:
杨思施1;  黄开刚1;  刘国忠2
1. 百色市气象局, 广西百色 533000;
2. 广西气象台, 广西南宁 530022
Author(s):
Yang Si-shi1;  Huang Kai-gang1;  Liu Guo-zhong2
1. Baise Municipal Meteorological Service, Baise Guangxi, 533000;
2. Guangxi Meteorological Observatory, Nanning Guangxi, 530022
关键词:
冰雹; 环境条件; 垂直风切变; 强对流风暴
Keywords:
hail; environmental condition; vertical wind shear; severe convective storm
分类号:
P458.1+21.2
摘要:
利用常规气象资料、多普勒雷达资料和自动气象站资料,从影响系统配置、环境条件、可预警性等方面对2013年3月23日百色市致灾冰雹天气过程的特征和成因进行了分析。结果表明:南支槽加深东移、850hPa切变线南压以及近乎相交的高低空急流配置是此次冰雹发生的有利天气背景,地面辐合线为强对流的触发、发展和持续提供了重要的边界层条件。地面增温、较高的对流有效位能、强的垂直风切变、合适的0℃和-20℃层高度以及较好的水汽条件为强对流风暴发生发展提供了良好的环境潜势条件。持续偏高的反射率因子和垂直积分液态水含量为冰雹、大风预警的发布提供了有效依据。
Abstract:
Based on conventional observation, Doppler radar and automatic weather station data, the characteristics and causes of hail process occurred in Baise city on 23th March 2013 were analyzed from the aspects of system configuration, environmental conditions and the possibility of early warning. The results showed that southern branch trough deepening; 850hPa shear line moving southward and the configuration of upper-level jet and low-level jet approximately intersecting were all advantageous weather background of this hail. It was the surface convergence line that played an important role in triggering and maintaining severe convective. Ground warming, high convection effective potential, strong vertical wind shear, suitable height of 0℃ and-20℃ layer and good vapor conditions provided good environment conditions for the strong convection developing. Consistent high reflectivity and VIL could provide some effective evidence for hail or gale warning.

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备注/Memo

备注/Memo:
收稿日期:2014-12-25。
基金项目:中国气象局华南区域气象中心科技攻关项目(GRMC2014M13)、广西自然科学基金项(2014GXNSFAA118299)和国家卫星气象中心项目(201401KY002/02-3)共同资助
作者简介:杨思施(1986-),男,助理工程师,主要从气象科技服务工作。
更新日期/Last Update: 1900-01-01