基于地面电场的凉山地区雷电预警方法研究
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摘要
本文利用凉山地区2014～2015年雷电实况观测资料和地面电场资料,采用电场强度阈值预警和电场极性跳变预警两种方法对地面电场预警雷电天气的有效性进行了分析,并综合这两种方法,选取电场强度E和电场变化率△E两个参数,分雨季、非雨季(包括干季和过渡季节)确定了预警阈值,并检验了预警有效性。结果表明:(1)不同季节的雷电天气地面电场预警阈值不同。(2)综合运用E和△E的预警阈值这两个参数进行雷电天气预警,可小幅度提高其预警有效性。
In this paper, based on the data of surface electric field in Liangshan Prefecture from 2014 to 2015,using threshold early warning method of electric field and polar jump warning method of electric field to analysis the effectiveness of lightning warning. Combining the two methods,we choose two parameters of electric field intensity E and electric field rate △E to determination threshold in rainy season and non-rainy season and test the effectiveness of early warning. The results show that the warning threshold of ground electric field is different in different seasons and combining the warning threshold of E and △E can increase the warning effectiveness a little.
In this paper, based on the data of surface electric field in Liangshan Prefecture from 2014 to 2015,using threshold early warning method of electric field and polar jump warning method of electric field to analysis the effectiveness of lightning warning. Combining the two methods,we choose two parameters of electric field intensity E and electric field rate △E to determination threshold in rainy season and non-rainy season and test the effectiveness of early warning. The results show that the warning threshold of ground electric field is different in different seasons and combining the warning threshold of E and △E can increase the warning effectiveness a little.
引文
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[8] 赵玮,熊亚军,郭金兰.一种新型雷电潜势预报指数的构建与试验[J].干旱气象,2016,34(1):173-180
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[10] 马俊贵,纳丽,齐晓鹏,等.几种雷电灾害风险评估计算方法应用对比分析[J].气象与环境科学,2018,41(2):129-133
[11] 方标,张逸,严小冬.雷达资料在黔东北雷电预警中的应用研究[J].气象与环境科学,2017,40(3):133-137
[2] Montanya J,Aranguren D,Pineda N,et al.Total lightning,electrostatic field and meteorological rader applied to lightning warning[C].20th international lightning detection Conference,Tucson,Arizona,USA,2008
[3] 刘春泉,厚军学,刘凯.利用大气电场资料进行雷暴预警预报[J].宁夏工程技术,2010,9(3):202-205
[4] 王强,王建初,顾宇丹.电场时序差分在雷电预警中的有效性分析[J].气象科学,2009,29(5):657-663
[5] 杨波,周璧华,高太长.泰山和西双版纳两地雷暴电场特征分析[J].解放军理工大学学报(自然科学版),2008,9(3):302-306
[6] 柴瑞,王振会,肖稳安,等.大气电场资料在雷电预警中应用[J].气象科技,2009,37(6):724-728
[7] Aranguren D,Montanya J,Sola G,et al.On the lightning hazard warning using electrostatic field:Analysis of summer thunderstorms in Spain[J].Journal of Electrostatics,2009,67,507-512
[8] 赵玮,熊亚军,郭金兰.一种新型雷电潜势预报指数的构建与试验[J].干旱气象,2016,34(1):173-180
[9] 刘维成,陶健红,邵爱梅,等.雷电监测预警预报技术简述[J].干旱气象,2014,32(3):446-453
[10] 马俊贵,纳丽,齐晓鹏,等.几种雷电灾害风险评估计算方法应用对比分析[J].气象与环境科学,2018,41(2):129-133
[11] 方标,张逸,严小冬.雷达资料在黔东北雷电预警中的应用研究[J].气象与环境科学,2017,40(3):133-137