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| 跨座式单轨交通沿线雷电活动规律与易闪性分析 | |
| 引用本文： | 李家启,李良福,秦健,向波.跨座式单轨交通沿线雷电活动规律与易闪性分析[J].气象科技,2009,37(6):734-738. |
| 作者姓名： | 李家启 李良福 秦健 向波 |
| 作者单位： | 1. 南京信息工程大学,南京,210044;重庆市防雷中心,重庆,401147 2. 重庆市气象局,重庆,401147 3. 重庆市防雷中心,重庆,401147 |
| 基金项目： | 重庆市科技攻关项目"重庆市轻轨防雷技术研究"和重庆市建设科研项目"跨座式单轨交通防雷技术规范"资助 |
| 摘 要： | 采用线路走廊法,利用重庆市2006～2008年ADTD地闪监测资料,通过对重庆市跨座式单轨交通2号线的雷电活动规律(闪电次数、雷电日、地闪密度、雷电流幅值分布和闪电落区分布)统计分析,进行了相应的易闪性分析.结果发现跨座式单轨交通2号线临江门至佛图关车站区间段是发生临界危险雷电流概率、雷击大地年平均密度较大和雷电落区距离各站点及区间平均距离较小的重叠区域,该线易受雷击,是雷电防护重点区域.该区间段处于沿江位置,地形较为陡峭,易导致局地强对流性天气,理论分析与实际情况一致. |
| 关 键 词： | 跨座式单轨交通 雷电活动 易闪性 |
| 收稿时间： | 2009/6/17 0:00:00 |
| 修稿时间： | 2009/10/20 0:00:00 |
Analysis of Lightning Activity Regularity and Vulnerability for Straddle-Type Monorail System |
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| Li Jiaqi,Li Liangfu,Qin Jian and Xiang Bo.Analysis of Lightning Activity Regularity and Vulnerability for Straddle-Type Monorail System[J].Meteorological Science and Technology,2009,37(6):734-738. | |
| Authors: | Li Jiaqi Li Liangfu Qin Jian and Xiang Bo |
| Institution: | 1 Nanjing University of Information Science & Technology, Nanjing 210044; 2 Lightning Protection Center of Chongqing,;Chongqing Meteorological Bureau, Chongqing 401147;Lightning Protection Center of Chongqing,;Chongqing Meteorological Bureau, Chongqing 401147 |
| Abstract: | The cloud to ground flash data of Chongqing from 2006 to 2008 from the lightning location system (ADTD) is used to analyze the regularity of lightning activities of the straddle type monorail system (No.2) by the line corridor method. A vulnerability analysis is made, with the lightning parameters including the number of lightning strokes, the number of thunderstorm days per year, cloud to ground flash density, the distribution of lightning current magnitudes, and the distribution of lightning locations. The results indicate that the section from Linjiangmen to Fotuguan is the area that has higher occurrence probability of critical lightning current, relatively larger mean ground flash density, and shorter average distance from the stations, which is easy to be attacked by lightning strokes and is considered as the key area of lightning protection because it is located along the riverside and has steep topography. |
| Keywords: | straddle type monorail system lightning activity vulnerability |
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