| 珠江流域降水周期特征分析 |
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| 引用本文： | 陆文秀,刘丙军,陈晓宏,伍丽丽.珠江流域降水周期特征分析[J].水文,2013,33(2):82-86. |
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| 作者姓名： | 陆文秀 刘丙军 陈晓宏 伍丽丽 |
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| 作者单位： | 1.中山大学地理科学与规划学院水资源与环境系2.华南地区水循环与水安全广东省普通高校重点实验室 |
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| 基金项目： | 国家自然科学基金项目(50909106)；教育部青年教师培育项目(3161399)；广东省科技计划项目(2011B030800008)； |
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| 摘 要： | 运用小波分析方法,研究了珠江流域全年、汛期(4～9月)和非汛期(10～翌年3月)三种降水序列时间周期演变特征,结果表明:(1)珠江流域不同区域降水周期不一,大体可分成三个片区,周期尺度分别为6～8a、12～14a和20～21a;(2)珠江流域全年与汛期降水周期以年际变化为主,且两者降水周期分布一致;非汛期降水周期以年代际变化为主,与全年及汛期的降水周期差异较大。
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| 关 键 词： | 珠江流域 降水周期 小波分析 |
| 收稿时间： | 2012/3/30 0:00:00 |
Characteristics of Precipitation Period in Pearl River Basin |
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| LU Wenxiu,LIU Bingjun,CHEN Xiaohong,WU Lili.Characteristics of Precipitation Period in Pearl River Basin[J].Hydrology,2013,33(2):82-86. |
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| Authors: | LU Wenxiu LIU Bingjun CHEN Xiaohong WU Lili |
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| Institution: | 1. Department of Water Resources and Environment, Sun Yat-sen University, Guangzhou 510275, China;2. Key Laboratory of Water Cycle and Water Security in Southern China of Guangdong High Education Institute, Guangzhou 510275, China |
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| Abstract: | In this study, we analyzed the period change characteristics of three precipitation series in a year, flood season (from April toSeptember) and non-flood season (from October to March of the following year) based on the methodology of wavelet transformation. The resultsshow: (1) The periods are different in various regions in the Pearl River Basin. The Pearl River Basin can be categorized into three regions bythe distribution characteristics of the period. The main period scales are as follows: 6 to 8 years, 12 to 14 years, and 20 to 21 years. (2)The pe -riod of the annual and flood season precipitation is mainly an inter-annual change, and the period distribution between the two is consistent.The inter-decadal variation of non-flood season period is the dominating pattern, and there is a large difference between the period of nonflood season precipitation and that of the annual and flood season. |
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| Keywords: | Pearl River Basin precipitation period wavelet transformation |
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