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| 衡阳近五十年暴雨气候特征和变化规律分析 | |
| 引用本文： | 陈涛,赵艳兰,彭刚,周益平,万驰涛,莫红专.衡阳近五十年暴雨气候特征和变化规律分析[J].防灾科技学院学报,2011,13(1):27-30. |
| 作者姓名： | 陈涛 赵艳兰 彭刚 周益平 万驰涛 莫红专 |
| 作者单位： | 1. 衡阳市气象局,湖南,衡阳,421001 2. 祁东县气象局,湖南,衡阳,421600 3. 衡南县气象局,湖南,衡阳,421101 |
| 基金项目： | 衡阳市2009年社会发展科技支撑计划，湖南省气象局2010年重点科研项目 |
| 摘 要： | 利用统计分析、Morlet小波分析和墨西哥帽小波诊断方法,对近50n衡阳暴雨的时空变化进行分析,得到其变化规律和周期震荡的突变点,结果表明:衡阳暴雨分布不均,其中南、北部偏多,中部偏少,平均暴雨数为3.0次/n;≥100mm暴雨占暴雨总数的11.0%,特大暴雨较少出现;衡阳局地性暴雨占23.6%,主要以区域性和全市性暴... |
| 关 键 词： | 暴雨特征 Morlet小波 变化规律 |
The Climatic Characteristics and Variation of Rainstorm in Hengyang during Recent Five Years |
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| ChenTao,Zhao Yanlan,PengGang,Zhou Yiping,Wan Chitao,Mo Hongzhuan.The Climatic Characteristics and Variation of Rainstorm in Hengyang during Recent Five Years[J].Journal of Institute of Disaster-prevention Science and Technology,2011,13(1):27-30. | |
| Authors: | ChenTao Zhao Yanlan PengGang Zhou Yiping Wan Chitao Mo Hongzhuan |
| Institution: | ChenTao1,Zhao Yanlan2,PengGang1,Zhou Yiping1,Wan Chitao1,Mo Hongzhuan3 (1.Hengyang Meteorological Bureau,421001,2.Qidong Meteorological Bureau,421600,3.Hengnan Meteorological Bureau,421101) |
| Abstract: | By using the statistical analysis,Morlet wavelet and Mexico-hat wavelet analysis,the catastrophe point of periodical vibration and the space-time change law of rainstorms in Hengyang during recent five years are obtained.The results show that an average of rainstorm days is 3 times every year.But there is an uneven distribution: the number of rainstorm days in the central Hengyang is less than that in the south and north of Hengyang;The percentage of heavy rainstorm and regional rainstorm were 11.0% and 23.... |
| Keywords: | rainstorm feature Morlet wavelet variation law |
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