主办单位:中国气象局沈阳大气环境研究所
国际刊号:ISSN 1673-503X
国内刊号:CN 21-1531/P

气象与环境学报 ›› 2018, Vol. 34 ›› Issue (1): 61-68.doi: 10.3969/j.issn.1673-503X.2018.01.008

• 论文 • 上一篇    下一篇

安徽省云地闪密度与雷暴日数关系的研究

朱浩1, 孙浩1, 王凯1, 江梦天2, 段春锋3, 程向阳1   

  1. 1. 安徽省气象灾害防御技术中心, 安徽 合肥 230061;
    2. 连云港市连云区气象局, 江苏 连云港 222000;
    3. 安徽省气候中心, 安徽 合肥 230031
  • 收稿日期:2017-02-21 修回日期:2017-03-31 出版日期:2018-02-28 发布日期:2018-02-28
  • 作者简介:朱浩,男,1986年生,工程师,主要从事雷电防护和雷电预警研究,E-mail:zhuhao-201@163.com。
  • 基金资助:
    安徽省气象局气象科技发展基金项目“基于闪电定位数据的雷暴日资料序列化延长”(KM201606)和安徽省自然科学基金项目“安徽省梅汛期极端降水事件的时空特征及其与东北冷涡的联系”(1308085QD69)共同资助。

Study on relationship of cloud-ground lightning density and thunderstorm days in Anhui province

ZHU Hao1, SUN Hao1, WANG Kai1, JIANG Meng-tian2, DUAN Chun-feng3, CHENG Xiang-yang1   

  1. 1. Anhui Meteorological Disaster Prevention Center, Hefei 230061, China;
    2. Meteorological Service in Lianyun District of Lianyungang, Lianyungang 222000, China;
    3. Anhui Climate Center, Hefei 230031, China
  • Received:2017-02-21 Revised:2017-03-31 Online:2018-02-28 Published:2018-02-28

摘要: 利用1961-2015年安徽省雷暴日数资料和2010-2015年ADTD系统闪电定位数据,以县级行政区域为基本单位,采用线性和幂两种计算模型分析安徽省年平均云地闪密度Ng与雷暴日数Td的关系,并与《建筑物防雷设计规范》(GB 50057)公式的计算结果进行对比。结果表明:2010-2015年安徽省雷暴日数与1961-2015年雷暴日数的观测数据无显著性差异,幂模型比线性模型更适用于表征安徽省年平均云地闪密度和雷暴日数的关系。利用雷暴日数据结合规范两种计算公式得到的安徽省各县区年平均云地闪密度与实际观测的云地闪密度存在较大的差异,公式Ng=0.024Td1.3计算的云地闪密度的样本平均相对误差为31.65%,低于Ng=0.100Td计算的云地闪密度的样本相对误差44.03%。拟合公式Ng=0.0281Td1.369计算的安徽省年平均云地闪密度与实际观测的云地闪密度接近,较规范中的两类公式Ng=0.024Td1.3Ng=0.100Td更适用于安徽地区。

关键词: 云地闪, 雷暴日数, 闪电密度, 误差

Abstract: Based on thunderstorm days data from 1961 to 2015 and Active Divectory Topology Diagrammer (ADTD) lightning location data from 2010 to 2015,the relationship between annual mean cloud-ground lightning density Ng and thunderstorm days Td was analyzed using a linear model and a power law model throughout different counties in Anhui province.The results were compared with those calculated from formula according to "Code for Design Protection of Structures against Lightning" (GB 50057).The results show that there is no significant difference between thunderstorm days observed from 2010 to 2015 and that observed from 1961 to 2015.The power law model is more suitable for describing the relationship between annual cloud-ground lightning density and thunderstorm days than the linear model.The annual mean cloud-ground lightning density in different counties in Anhui province calculated from the two equations according to the standard (GB 50057) has a large difference from the real observations.The average relative error of the power-law equation Ng=0.024Td1.3 is 31.65% and that of linear model Ng=0.100Td is 44.03%,respectively.The cloud-ground lightning density calculated from the fitting equation Ng=0.0281Td1.369 is close to the real observations,and it is more suitable for Anhui province than the other two equations Ng=0.024Td1.3 and Ng=0.100Td.

Key words: Cloud-ground lightning, Thunderstorm days, Lightning density, Error

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