| 南流江流域降水序列变化的特征分析 |
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| 引用本文： | 黄翠秋,郭纯青,代俊峰,王文君,王小刚. 南流江流域降水序列变化的特征分析[J]. 水电能源科学, 2012, 30(4): 6-8 |
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| 作者姓名： | 黄翠秋 郭纯青 代俊峰 王文君 王小刚 |
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| 作者单位： | 桂林理工大学环境科学与工程学院,广西桂林,541004 |
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| 基金项目： | 广西自然科学基金资助项目（2010GXNSFE013005）；广西科技开发基金资助项目（桂科攻 089500431） |
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| 摘 要： | 以南流江流域15个主要代表站点为例，基于1978~2007年的年降水资料，采用回归分析法、滑动t检验法、Cramer法、Yamamot法、MannKendall法和Pettitt法进行了演变趋势分析和突变点检测，并运用小波分析揭示其降水序列的多时间尺度振荡特性和周期性变化。 结果表明，南流江流域年降水量变化趋势不明显，1996年发生突变，演变过程存在三类明显的时间尺度特征，降水量由多变少。
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| 关 键 词： | 降水序列； 非参数检验； 小波分析； 南流江流域 |
Characteristics Analysis of Rainfall Variation in Nanliujiang Basin |
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| HUANG Cuiqiu,GUO Chunqing,DAI Junfeng,WANG Wenjun and WANG Xiaogang. Characteristics Analysis of Rainfall Variation in Nanliujiang Basin[J]. International Journal Hydroelectric Energy, 2012, 30(4): 6-8 |
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| Authors: | HUANG Cuiqiu GUO Chunqing DAI Junfeng WANG Wenjun WANG Xiaogang |
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| Affiliation: | College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China;College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China;College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China;College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China;College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541004, China |
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| Abstract: | Base on annual precipitation data of fifteen major stations in Nanliujiang Basin from 1978 to 2007,regression analysis,moving t-test technique,Cramer method,Yamamot method,Mann-Kendall method and Pettitt method are applied to analyze the evolution tendency and sudden change points.And then the multi-scale cycle and jump variation of annual precipitation time series is discussed with wavelet analysis.The results show that the variation trend of rainfall is not obvious;the sudden change point occurred in 1996;the evolution of rainfall series presents three kinds of distinct time-scales and the annual precipitation is decreasing. |
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| Keywords: | series of precipitation nonparametric test wavelet analysis Nanliujiang Basin |
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