| 杭州市雷电活动特征及雷电灾害区划 |
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| 引用本文： | 刘垚,缪启龙,刘淼,段春锋.杭州市雷电活动特征及雷电灾害区划[J].气象与减灾研究,2012(4):62-67. |
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| 作者姓名： | 刘垚 缪启龙 刘淼 段春锋 |
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| 作者单位： | [1]南京信息工程大学江苏省农业气象重点实验室,江苏南京210044 [2]南京信息工程大学应用气象学院,江苏南京210044 [3]浙江省防雷中心,浙江杭州310021 |
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| 基金项目： | 科技部公益性行业（气象）科研专项（编号：GYHY201006006）; 江苏高校优势学科建设工程（PAPD）项目; 杭州市科委项目“强对流天气风险评估” |
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| 摘 要： | 利用杭州市1966—2005年雷暴日资料和2008—2009年闪电定位资料,运用ArcGIS空间分析技术结合数理统计方法,分析杭州市雷电活动时空分布特征,并采用地闪密度空间分布与最大地闪强度空间分布的叠置作为雷电风险的主要评价指标,得到杭州市雷电灾害致灾危险性区划。分析结果表明,在时间分布上,杭州市雷暴天气多发生在夏季和午后时段;在空间分布上,杭州市地闪密度较大地区多集中在山脉向阳坡、迎风坡以及大面积水域向陆地过渡的区域。杭州市雷电灾害风险高值区主要集中在上城区、江干区、滨江区、西湖区西部以及淳安县西南部、富阳市大部、余杭区西部、萧山区中部地区。雷电风险高值区主要集中在人口稠密区、工业集聚区、湖边、江边等,这些都可能与气温、空气湿度、地形地貌、建筑物密集密切相关。
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| 关 键 词： | 雷电灾害 分布 风险区划 ArcGIS |
CHARACTERISTICS OF LIGHTNING ACTIVITY AND RISK ZONING OF LIGHTING HAZARD IN HANGZHOU |
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| Liu Yao,Miao Qilong,Liu Miao,Duan Chunfeng.CHARACTERISTICS OF LIGHTNING ACTIVITY AND RISK ZONING OF LIGHTING HAZARD IN HANGZHOU[J].Meteorology and Disaster Reduction Research,2012(4):62-67. |
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| Authors: | Liu Yao Miao Qilong Liu Miao Duan Chunfeng |
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| Institution: | 1,2 1.Jiangsu Key Lab of Agricultural Meteorology,NUIST,Nanjing 210044,China 2.College of Applied Meteorology,NUIST,Nanjing 210044,China 3.Zhejiang Lightening-Protection Center,Hangzhou 310021,China |
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| Abstract: | Based on 1966—2005 daily thunderstorm data from 7 stations in Hangzhou and 2008—2009 lightning detection data from Zhejiang province,the ArcGIS was used to analyze the temporal and spatial distribution of lightning activity and lightning hazard in Hangzhou.Results showed that thunderstorms mostly occurred in summer and after 14：00.High lightning density occurred on the sunny or windward slopes of mountain and areas where water transited to land.By using the stacked spatial distribution of the lightning density and the maximum lightning intensity as the main evaluation index of risk zoning,lightning hazard was relatively severe in the densely populated areas,industrial agglomeration areas,lakeside,riverside,which may be associated with air temperature,air humidity,topography and dense buildings. |
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| Keywords: | Lightning disaster Distribution Risk zoning ArcGIS |
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