1964—2013年河源地区雷暴日特征分析  

Analysis of the Characteristics of Thunderstorm Days in the Heyuan Area from 1964 to 2013

作　　者：陈妙君 武雪沁 郑嘉雯 赖晓玲 杜浪锋 CHEN Miao-jun;WU Xue-qin;ZHENG Jia-wen;LAI Xiao-ling;DU Lang-feng(Meteorological Bureau of Heyuan,Heyuan 517000;Meteorological Information and Technical Support Center of Shanghai,Shanghai 200030;Meteorological Observatory of Guangzhou,Guangzhou 511430)

机构地区：[1]河源市气象局,广东河源517000 [2]上海市气象信息与技术支持中心,上海200030 [3]广州市气象台,广东广州511430

出　　处：《广东气象》2021年第4期29-32,共4页Guangdong Meteorology

摘　　要：选取河源市1964—2013年共50年的人工观测雷暴日资料以及2012—2013年的闪电定位数据分析河源地区的雷暴日特征,结果表明:河源市雷暴日数具有明显的年代际变化特征,总体呈现缓慢震荡减少的趋势;由M-K检验结果发现市区雷暴日数在1988年前后发生突变,河源市4个县的年际突变时间在1982—1992年范围间。在2012—2013年时间段内,由闪电定位仪数据得到的雷电日与人工观测雷暴日的月变化趋势基本一致,但雷电日数远大于雷暴日数,可能与人工记录的缺失或闪电定位仪误记有关。Manually observed data of thunderstorm days in Heyuan in the 50 years from 1964 to 2013 and lightning location data for 2012 and 2013 are used to analyze the characteristics of thunderstorm days in the area.The result is shown as follows.The number of thunderstorm days in Heyuan varies significantly on the interdecadal scale,showing a general trend of gradually fluctuating and decreasing.As shown in the Mann-Kendall test,an abrupt change occurred around 1988 for the urban area of the city,and interannual abrupt changes took place between 1982 and 1992 for its four counties,in terms of the number of thunderstorm days.In 2012 and 2013,the number of lightning days,as determined by lightning location detectors,is generally consistent with the number of thunderstorm days manually observed on the monthly scale,though the former is much more than the latter,which may be attributed to manual record losses or mistakes made by the lightning location detectors.

关 键 词：气候学 雷暴日数 M-K检验 闪电定位 河源地区 

分 类 号：P46[天文地球—大气科学及气象学]