| 内蒙古河套地区雷暴气候特征分析 |
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| 引用本文： | 张锐,冯旭宇,刘晓东.内蒙古河套地区雷暴气候特征分析[J].干旱区资源与环境,2011(3):84-87. |
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| 作者姓名： | 张锐 冯旭宇 刘晓东 |
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| 作者单位： | 内蒙古巴彦淖尔市气象局;南京信息工程大学计算机与软件学院;内蒙古雷电预警防护中心; |
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| 基金项目： | 内蒙古自治区气象局科技创新项目(nmqxkjcx200809)资助 |
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| 摘 要： | 基于1971~2007年内蒙古河套地区9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,对内蒙古河套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:内蒙古河套地区年平均雷暴日数为21.3d,呈东部多西部少的经向型特征,东、西部的年平均雷暴日数相差12天左右;37年来雷暴日数在波动中呈减少趋势,下降幅度为2 d/10 a;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6,7,8三个月占78.6%;从小波分析的结果看,河套地区雷暴具有3年、8年的短周期和12年、20年的长周期震荡变化,其中以3年和12年震荡周期为主要特征。
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| 关 键 词： | 雷暴 气候特征 小波分析 |
Climatic features of thunderstorm in Hetao region of Inner Mongolia |
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| ZHANG Rui,FENG Xuyu,LIU Xiaodong.Climatic features of thunderstorm in Hetao region of Inner Mongolia[J].Journal of Arid Land Resources and Environment,2011(3):84-87. |
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| Authors: | ZHANG Rui FENG Xuyu LIU Xiaodong |
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| Institution: | ZHANG Rui1,FENG Xuyu2,3,LIU Xiaodong3(1.Bayannur Meteorological Bureau,Bayannur 015100,P.R.China,2.School of Computer and Software,Nanjing University of Information Science&Technology,Nanjing 210044,3.Lightning Warning & Protection Center,Hohhot 010051,P.R.China) |
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| Abstract: | Using the observational thunder storm data of 9 stations in Hetao area of Inner Mongolia for 1971-2007,the thunderstorm characteristics of climate change and spatio-temporal distribution were studied by means of mathematical statistics and the analysis of wavelets.The results showed that the mean annual numbers of thunderstorm days were 21.3,the annual-average thunderstorm days were the least in west region of Hetao area and the most in the east region,and interannual thunderstorm variability was obvious,th... |
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| Keywords: | thunderstorm climatic feature analysis of wavelets |
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