| 江西两次不同季节强飑线天气过程对比分析 |
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| 引用本文： | 陈云辉,蔡菁,马中元,郭艳.江西两次不同季节强飑线天气过程对比分析[J].气象水文海洋仪器,2011,28(2):43-50. |
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| 作者姓名： | 陈云辉 蔡菁 马中元 郭艳 |
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| 作者单位： | 1. 江西省气象台,南昌,330046
2. 江西省气象科学研究所,南昌,330046 |
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| 基金项目： | 中国气象科学研究院灾害天气国家重点实验室2010开放课题《江西飑线天气系统的活动特征研究》(2010LASW-A03)项目资助 |
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| 摘 要： | 利用常规气象观测资料、卫星云图和多普勒天气雷达资料、中尺度加密自动站和闪电定位资料,分别对江西春季和初冬两次强飑线天气过程进行分析。结果表明:两次飑线过程均具有江西典型强对流天气形势特征,均有地面中小尺度系统触发和配合,多以中尺度辐合线或中小尺度涡旋形式存在,春季还伴有中尺度温度锋区;两次飑线过程物理量场对流参数均超过江西强对流天气统计发生的阈值,初冬物理量场要弱于春季;卫星云图呈逗点云系尾部线状云系,TBB显示初冬MCS更强更活跃;初冬飑线回波顶更高,春季飑线液态水含量更大;初冬飑线闪电频次和强度均高于春季飑线,冰晶粒子活跃。
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| 关 键 词： | 强飑线天气 中尺度系统 逗点云系尾部 雷达回波特征 |
Comparative analysis of strong squall line weather processes in two different seasons over Jiangxi |
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| Chen Yunhui,Cai Jing,Ma Zhongyuan,Guo Yan.Comparative analysis of strong squall line weather processes in two different seasons over Jiangxi[J].Meteorological，Hydrological and Marine Instruments,2011,28(2):43-50. |
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| Authors: | Chen Yunhui Cai Jing Ma Zhongyuan Guo Yan |
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| Affiliation: | Chen Yunhui1,Cai Jing1,Ma Zhongyuan2,Guo Yan1(1.Jiangxi Observatory,Nanchang 330046,2.Jiangxi Meteorological Science Institute,Nanchang 330046) |
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| Abstract: | By using the data of conventional meteorological observation,satellite image,Doppler weather radar,meso-scale ADTD automatic weather station and lightning location,this paper analyses two strong squall line weather processes that occurred at spring and early winter in Jiangxi respectively.Results show that:the two squall line processes are of characteristics of typical strong convective weather situation in Jiangxi,and the surface meso-micro scale system is mainly existed in the forms of meso-scale converge... |
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| Keywords: | strong squall line meso-scale system tail of comma cloud radar echo characteristics |
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