中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 中卫“7.28”区域性暴雨成因分析 安徽农业科学 2012,40 (9) 483-486
Position: Home > Articles > Analysis on Formation Reason of "7.28" Regional Rainstorm in Zhongwei Journal of Anhui Agricultural Sciences 2012,40 (9) 483-486

中卫“7.28”区域性暴雨成因分析

作  者：
白玲;聂晶鑫;李保华;张德有;杨苑
单  位：
宁夏气象防灾减灾重点实验室宁夏中卫市气象局;宁夏中卫市气象局;宁夏回族自治区中卫市气象局
关键词：
区域性暴雨;影响系统;诊断分析;雷达回波
摘  要：
[目的]分析中卫市"7.28"区域性暴雨的成因。[方法]利用NCEP/NCAR再分析资料、Micaps常规资料,对2011年7月28日中卫市区域性暴雨天气成因进行分析。[结果]在"东高西低"环流形势下,200 hPa西风急流、500 hPa冷槽、700 hPa低涡和切变线的建立,以及850 hPa冷暖空气的快速交替和副热带高压的稳定北上,导致了此次暴雨天气的发生。暴雨落区位于高空急流的右侧,低空急流左侧,700 hPa切变线南侧。各物理量场的分析表明,暴雨区上空水汽条件、垂直运动、能量、涡度、散度及风场分布均有利于暴雨的产生。暴雨发生时,雷达回波主要表现为混合云降水回波,回波强度30～45 dBz,回波顶高7～8 km。[结论]该研究为以后中卫市的暴雨预报提供了一些经验及理论指导。
译  名：
Analysis on Formation Reason of "7.28" Regional Rainstorm in Zhongwei
作  者：
BAI Ling et al(Zhongwei Meteorological Bureau in Ningxia,Zhongwei,Ningxia 755000)
关键词：
Regional rainstorm;Influence system;Diagnostic analysis;Radar echo
摘  要：
[Objective] The research aimed to analyze formation reason of "7.28" regional rainstorm in Zhongwei City.[Method] NCEP/NCAR reanalysis data and Micaps routine data were used to analyze cause of the regional rainstorm which occurred in Zhongwei City on July 28,2011.[Result] Under the east-high-west-low circulation situation,factors which caused this rainstorm included westerly jet at 200 hPa,cold trough at 500 hPa,low vortex and shear line at 700 hPa,quick alternation of the warm and cold air at 850 hPa,stability and northward moving of the subtropical high.Falling zone of the rainstorm was located at the right of the upper jet,the left of the low-level jet and the south of 700 hPa shear line.Analyses of each physical quantity field showed that distribution of the moisture condition,vertical motion,energy,vorticity,divergence and wind field over the rainstorm area were all beneficial for rainstorm generation.When the rainstorm occurred,radar echo was mixed-cloud precipitation type.The echo intensity was from 30 to 45dBz,and top height of the echo was from 7 to 8 km.[Conclusion] The research provided some experience and theoretical guidance for future rainstorm forecast in Zhongwei City.

相似文章

导出引用
计量
文章访问数: 8
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46