| 一种新的雷电日及雷电参数统计方法 |
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| 引用本文： | 尹丽云,许迎杰,张腾飞,邓勇,刘雪涛,谢屹然,徐开.一种新的雷电日及雷电参数统计方法[J].气象科技,2009,37(6):739-743. |
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| 作者姓名： | 尹丽云 许迎杰 张腾飞 邓勇 刘雪涛 谢屹然 徐开 |
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| 作者单位： | 1. 云南省雷电中心,昆明,650034
2. 中国气象局,北京,100081 |
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| 基金项目： | 2006年中国气象局多轨道研究型业务"云南省雷电监测预警系统的研究开发"专项及2008年云南省气象局业务能力建设专项"低纬高原雷电灾害风险评估方法的研究" |
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| 摘 要： | 为更好地应用雷电定位系统的自动监测数据统计雷电日及雷电参数,利用滇中地区1987～2006年49个气象站点雷电观测资料和2005～2006年闪电定位探测资料,在对比分析气象观测雷电资料与闪电定位探测雷电资料的基础上,提出了一种新的适用于自动监测雷电日的统计方法--网格法.网格法划分统计区域详细、合理,其雷电日统计值与传统气象雷电日有可比性.长期气象雷电日资料是选定网格大小的参考标尺,滇中地区取0.175°×0.175°网格统计值为其年平均雷电日,取0.3°×0.3°网格统计值为其最大雷电日.用网格法对雷电参数进行统计结果显示:滇中地区雷电日和雷电密度有显著的局地变化特征,地闪密度与闪电强度成反比关系.此结论为防雷工程设计、雷电灾害评估和雷电成因分析提供了较好的理论基础.
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| 关 键 词： | 雷电日 雷电参数 雷电定位系统 网格法 |
| 收稿时间： | 2008/6/10 0:00:00 |
| 修稿时间： | 2008/9/27 0:00:00 |
A New Statistical Method of Lightning Days and Lightning Parameters |
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| Yun Liyin,Xu Yingjie,Zhang Tengfei,Deng Yong,Liu Xuetao,Xie Yiran and Xukai.A New Statistical Method of Lightning Days and Lightning Parameters[J].Meteorological Science and Technology,2009,37(6):739-743. |
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| Authors: | Yun Liyin Xu Yingjie Zhang Tengfei Deng Yong Liu Xuetao Xie Yiran and Xukai |
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| Institution: | Thunderbolt Research Center, Yunnan Provincial Meteorological Bureau, Kunming 650034;Thunderbolt Research Center, Yunnan Provincial Meteorological Bureau, Kunming 650034;Thunderbolt Research Center, Yunnan Provincial Meteorological Bureau, Kunming 650034;China Meteorological Administration, Beijing 100081;Thunderbolt Research Center, Yunnan Provincial Meteorological Bureau, Kunming 650034;Thunderbolt Research Center, Yunnan Provincial Meteorological Bureau, Kunming 650034;Thunderbolt Research Center, Yunnan Provincial Meteorological Bureau, Kunming 650034 |
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| Abstract: | In order to make better use of the data from Lightning Location Systems (LLS) to calculate the number of lightning days and lightning parameters, by means of the conventionally observed lightning day data from 49 Stations over the central Yunnan Province from 1987 to 2006 and the lighting location data from 2005 to 2006, the grid method for calculating lightning days and lightning parameters automatically is presented on the basis of comparing the observed and LLS data. By means of the grid method, the area division is more detailed and reasonable with a satisfactory comparability between calculated and conventional lightning day data. The long range lightning day data are needed as sources for determining the size of grids, and the calculated result with the 0.175°×0.175° grid is chosen for annual mean lightning days and 0.3°×0.3° for maximum lightning days in the central Yunnan Province. The results of lightning parameters with the grid method show that there are obvious local variations in lightning days and lightning density, and the density of ground lighting and the strength of lighting have an inverse proportional relationship, which provides theoretical foundations for the engineering design of lightning protection, as well as the assessment and causal analysis of Lightning Disasters. |
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| Keywords: | lightning day lightning parameter lightning location system grid method |
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