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气象:2017,43(6):696-704
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江淮对流云发生规律及其垂直结构分析
朱士超1,袁野1,吴林林1,姚叶青2,吴月3
(1 安徽省人工影响天气办公室,合肥 230031 2 安徽省气象台,合肥 230031 3 合肥市气象局,合肥 230041)
Analysis on Characteristics and Vertical Structure of Convective Clouds over the Area Between Yangtze River and Huaihe River
ZHU Shichao1,YUAN Ye1,WU Linlin1,YAO Yeqing2,WU Yue3
(1 Anhui Weather Modification Office, Hefei 230031 2 Anhui Meteorological Observatory, Hefei 230031 3 Hefei Meteorological Bureau, Hefei 230041)
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投稿时间:2016-01-21    修订日期:2016-09-20
中文摘要: 利用安徽省内多普勒雷达组网数据,统计分析了江淮地区2013—2014年6—9月发生的对流云结构特征,共找出227个对流云个例,将不同对流云按结构分为9类,归类后发现江淮对流云以孤立对流、簇状对流和非线性对流为主,分别占总对流数的29.1%、18.1%和23.3%。不同的天气背景条件下,主要发生的对流结构也不同,低槽I型天气下,主要以孤立对流云为主;低槽II型天气下,主要发生的对流以非线状对流为主,同时由于低槽II型是江淮地区多发的天气类型,所以这种天气是各种对流的高发型天气。利用调频连续波雷达探测获得高时空分辨率云体时间 高度剖面,了解云体的垂直结构,给出比一般雷达产品更加精细的对流云个例显示,典型孤立对流云、簇状对流云和非线状对流云的个例剖面图,及相应水粒子最大下落速度分别为13.3、8.2和11.5 m·s-1。
Abstract:This paper analyzed structure characteristics of convective clouds over the area between the Yangtze River and the Huaihe River based on Doppler radar data during 2013-2014. The used 227 convective cloud cases are classified into nine structure types. Then, we found that the isolated cell (IC), clusters of cells (CC), nonlinear systems (NL) are the dominant convective clouds over this area, accounting for 29.1%, 18.1%, and 23.3% of the total respectively. Different structural convective clouds occur under different weather backgrounds. Isolated cell is the main convection in the trough I pattern; nonlinear system is the major convection in the trough II pattern. At the same time, other structural convective clouds also occur frequently due to the common synoptic conditions. The convective clouds detected by the C FMCW radar show higher resolution of IC, CC and NL cloud structure images and the maximum falling speeds of precipitation particles, reaching 13.3 m·s-1, 8.2 m·s-1 and 11.5 m·s-1, respectively.
文章编号:     中图分类号:P401    文献标志码:
基金项目:安徽省硕、博士启动项目(RC201514)、公益性行业(气象)科研专项(GYHY201306040)、安徽省气象局科技发展基金(KM201601)和中国气象局气溶胶与云降水重点开放实验室开放课题(KDW1402)共同资助
引用文本:
朱士超,袁野,吴林林,姚叶青,吴月.江淮对流云发生规律及其垂直结构分析[J].气象,2017,43(6):696-704.
ZHU Shichao,YUAN Ye,WU Linlin,YAO Yeqing,WU Yue.Analysis on Characteristics and Vertical Structure of Convective Clouds over the Area Between Yangtze River and Huaihe River[J].METEOROLOGICAL MONTHLY,2017,43(6):696-704.