| 东北冷涡下两次雷电过程特性对比分析 |
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| 引用本文： | 冯民学,钟颖颖,王业成,焦雪,徐彬彬.东北冷涡下两次雷电过程特性对比分析[J].灾害学,2010,25(4). |
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| 作者姓名： | 冯民学 钟颖颖 王业成 焦雪 徐彬彬 |
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| 作者单位： | 南京信息工程大学大气物理学院;江苏省防雷中心;南京市气象局; |
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| 基金项目： | 江苏省科技支撑计划(社会发展)项目 |
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| 摘 要： | 利用卫星、闪电和电场等资料对2009年6月江苏的两次受东北冷涡影响所致的雷电过程进行对比分析,探讨了发生雷电过程的天气形势和卫星产品等对强对流天气的指示作用,初步得出了同一环流背景下的两次雷电过程的特征:两次雷电过程都具备了较好的不稳定条件,但由于能量分布的差异,过程影响范围有所不同;5日雷电过程伴随冰雹,其正闪比明显高于只有闪电发生的21日;相当黑体亮度温度高低预示着对流活动活跃程度,大部分闪电分布在云顶温度低值区,或者温度梯度较大的对流旺盛区域;两次过程电场快变抖动都提前于地闪发生。
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| 关 键 词： | 对比分析 卫星资料 雷电过程 冷涡 电场 |
Comparative Analysis on Characteristics of Two Lightning Processes under Northeast Cold Vortex |
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| Feng Minxue,Zhong Yingying,Wang Yecheng,Jiaoxue,Xu Binbin.Comparative Analysis on Characteristics of Two Lightning Processes under Northeast Cold Vortex[J].Journal of Catastrophology,2010,25(4). |
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| Authors: | Feng Minxue Zhong Yingying Wang Yecheng Jiaoxue Xu Binbin |
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| Institution: | Feng Minxue1,2,Zhong Yingying1,Wang Yecheng3,Jiaoxue2 and Xu Binbin2 ( 1. College of Atmospheric Physics,Nanjing University of Information Science & Technology,Nanjing 210044,China,2. Lightning Protection Center in Jiangsu Province,Nanjing 210009,3. Nanjing Meteorological Bureau,China) |
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| Abstract: | With data of satellite,lightning and electric field,two lightning processes under northeast cold vortex happened in Jiangsu province in June,2009 are analyzed,synoptic situation of lightning occurrence and indication effect of satellite products and some others for severe convective weather are discussed,and features of the two lightning processes under the same circulation background are concluded. Both of the two lightning processes occurred under unstable conditions,but the areas which were influenced by... |
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| Keywords: | comparative analysis satellite data lightning process cold vortex electric field |
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