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| 基于HHT变换的雅鲁藏布江径流多时间尺度分析 | |
| 引用本文： | 邵骏,袁鹏,张文江,钱晓燕.基于HHT变换的雅鲁藏布江径流多时间尺度分析[J].水电能源科学,2009,27(5). |
| 作者姓名： | 邵骏 袁鹏 张文江 钱晓燕 |
| 作者单位： | 1. 四川大学,水利水电学院,四川,成都,610065 2. 四川大学,水利水电学院,四川,成都,610065;四川大学,水力学与山区河流开发保护国家重点实验室,四川,成都,610065 3. 中国科学院,地理科学与资源研究所,北京,100101 |
| 基金项目： | 国家自然科学基金资助项目(40801175);;水利部西藏“一江两河”地区水资源管理专题研究基金资助项目([2007]84) |
| 摘 要： | 采用HHT变换对雅鲁藏布江流域拉孜等4个典型水文站1956~2000年年径流量进行了多时间尺度分析。结果表明,雅鲁藏布江全流域范围内存在3、6~8、14~16 a的近似周期,与采用小波分析法所得结果吻合,验证了HHT变换有效、可行。该法为水文序列多时间尺度分析提供了一种新途径,值得推广。 |
| 关 键 词： | HHT变换 经验模态分解 水文序列 多时间尺度分析 雅鲁藏布江 |
Multi-temporal Scales Analysis of Runoff Series in Yarlung Zangbo River Based on Hilbert-Huang Transform |
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| SHAO Jun YUAN Peng,ZHANG Wenjiang QIAN Xiaoyan.Multi-temporal Scales Analysis of Runoff Series in Yarlung Zangbo River Based on Hilbert-Huang Transform[J].International Journal Hydroelectric Energy,2009,27(5). | |
| Authors: | SHAO Jun YUAN Peng ZHANG Wenjiang QIAN Xiaoyan |
| Affiliation: | 1.School of Water Resource and Hydropower;Sichuan University;Chengdu 610065;China;2.State Key Laboratory of Hydraulics and Mountain River Engineering;3.Institute of Geographic Sciences and Natural Resources Research;Chinese Academy of Sciences;Beijing 100101;China |
| Abstract: | The article details the Hilbert-Huang Transform(HHT) and applies this method to analyze multiple time scales of annual runoff series in Yarlung Zangbo River.With the measured annual runoff data from 1956 to 2000 in Yarlung Zangbo River,the Intrinsic Mode Function(IMF) and Hilbert spectrum are used to extract hydrological series period.The results have shown that the runoff series in Yarlung Zangbo River can be decomposed into four timescales quasi-periodic oscillations,including a 3 year signal,a 6~8 year s... |
| Keywords: | Hilbert-Huang Transform Empirical Mode Decomposition hydrological time series multiple time scales analysis Yarlung Zangbo River |
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