| 黄河中游水沙变化关系不确定性的时间尺度特征研究 |
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| 引用本文： | 张永,丁志宏,何宏谋. 黄河中游水沙变化关系不确定性的时间尺度特征研究[J]. 水利水电技术, 2010, 41(1) |
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| 作者姓名： | 张永 丁志宏 何宏谋 |
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| 作者单位： | 天津大学建筑工程学院,天津,300072;水利部水利水电规划设计总院,北京,100120;黄河水利科学研究院水资源研究所,河南郑州,450003 |
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| 摘 要： | 针对河川径流与泥沙变化所具有的复杂多时间尺度性和其间变化关系的复杂不确定性,为深入研究黄河中游水沙变化关系在不同时间尺度上的表现,以三门峡水文站为例,首先应用EMD方法对该站1919~1995年的年径流量和年输沙量时序分别进行多时间尺度分解,得到一系列相应的具有不同周期的波动分量,在此基础上,运用SPA方法对基于不同分解水平和时间尺度而得到的集对进行了分析。结果表明,黄河中游年径流量和年输沙量时序之间变化关系的不确定性具有显著的时间尺度特征,即二者之间的同、异、反特性在不同的时间尺度上具有明显的差异。
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| 关 键 词： | 黄河中游 径流 泥沙 不确定性 多时间尺度 |
Study on temporal scale features of relationship uncertainty between variations of runoff and sediment in Mid-Yellow River |
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| ZHANG Yong,DING Zhi-hong,HE Hong-mou. Study on temporal scale features of relationship uncertainty between variations of runoff and sediment in Mid-Yellow River[J]. Water Resources and Hydropower Engineering, 2010, 41(1) |
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| Authors: | ZHANG Yong DING Zhi-hong HE Hong-mou |
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| Affiliation: | ZHANG Yong1,2,DING Zhi-hong3,HE Hong-mou3(1.School of Civil Engineering,Tianjin University,Tianjin 300072,China,2.General Institute of Water Resources , Hydropower Planning , Design,Beijing 100120,3.Yellow River Hydraulic Research Institute,Zhengzhou 450003,Henan,China) |
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| Abstract: | In view of the complicated multi-temporal scale characteristics of the variations of runoff and sediment and the complicated uncertainty of the relationship between the variations therein,the temporal series of the annual runoff and sediment from 1919 to 1995 taken from Sanmenxia Hydrological Station is decomposed,by taking the station as the study case,with the application of EMD method at first for the deep study on the representation of the relationship between variations of runoff and sediment in the Mi... |
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| Keywords: | Mid-Yellow River runoff sediment uncertainty multi-temporal scale |
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