呼和浩特雷暴分布特征分析 |
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引用本文: | 李松如,刘晓东,杨俊远.呼和浩特雷暴分布特征分析[J].内蒙古气象,2011(3):48-50. |
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作者姓名: | 李松如 刘晓东 杨俊远 |
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作者单位: | 1. 内蒙古雷电预警防护中心,内蒙古呼和浩特,010051 2. 包头市气象局,内蒙古包头,014030 |
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摘 要: | 基于1971—2007年呼和浩特地区6个气象站的逐日雷暴观测资料,运用数理统计及小波分析等方法,对呼和浩特地区雷暴的时空分布特征和气候变化规律进行分析。结果表明:呼和浩特地区年平均雷暴日数为36.4d,呈南北多中部少的纬向型特征;37年来雷暴日数在波动中呈减少趋势,平均下降幅度为1.435 d/10a;该地区的雷暴有很强的季节性特点,集中出现在5—9月的5个月中,而夏季(6,7,8)3个月占73.5%;从小波分析的结果看,呼和浩特地区雷暴具有2、3年和4年的短周期及12、20年的长周期震荡变化,其中以长周期震荡为主要特征。
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关 键 词: | 雷暴 气候特征 小波分析 |
Analysis on Distribution Characteristics of Thunderstorm in Hohhot |
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Authors: | Li Songru Liu Xiaodong Yang Junyuan |
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Institution: | Li Songru,Liu Xiaodong,Yang Junyuan (Inner Mongolia Lightning Warning anf Protection Center,Inner Mongolia Hohhot 010051,Baotou Meteorological Bureau,Inner Mongolia Baotou 014030) |
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Abstract: | Using the observational thunderstorm data of 9 weather stations in Hohhot from 1971 to 2007 years,the thunderstorm characteristics of Climate change and spatio-temporal distribution were analyzed by means of mathematical statistics and the analysis of wavelets.The results showed that the mean annual numbers of thunderstorm are 36.4 days,the annual-average thunderstorm days were the least in central region of Hohhot area and the most in the north and south region,the annual number of thunderstorm days has a ... |
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Keywords: | Thunderstorm climatic feature analysis of wavelets |
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