Analysis on Periodic Variations and Trend of Annual Runoff in the Yarlung Zangbo River with HilbertHuang Transform

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Analysis on Periodic Variations and Trend of Annual Runoff in the Yarlung Zangbo River with HilbertHuang Transform

更新时间：2023-12-11

- Analysis on Periodic Variations and Trend of Annual Runoff in the Yarlung Zangbo River with HilbertHuang Transform
- Acta Scientiarum Naturalium Universitatis SunYatseni Vol. 49, Issue 1, Pages: 125-130(2010)
- 作者机构：
  
  1.  四川大学水利水电学院,四川,成都,610065
  2. 2 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. 3 中国科学院地理科学与资源研究所,北京,100101
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2010，
  
  Published Online：25 January 2010，
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Analysis on Periodic Variations and Trend of Annual Runoff in the Yarlung Zangbo River with HilbertHuang Transform. [J]. Acta Scientiarum Naturalium Universitatis SunYatseni 49(1):125-130(2010)
DOI：

Analysis on Periodic Variations and Trend of Annual Runoff in the Yarlung Zangbo River with HilbertHuang Transform. [J]. Acta Scientiarum Naturalium Universitatis SunYatseni 49(1):125-130(2010) DOI：

摘要

采用HilbertHuang变换对雅鲁藏布江干支流上的10个水文站1956-2000年天然径流资料进行分析，探讨了雅鲁藏布江流域年径流变化的近似周期及其演变趋势。研究结果表明，雅鲁藏布江全流域范围内存在约3、6~8、9、11~13、16~17及22~24 a的近似周期。同时研究还发现，雅鲁藏布江干支流在20世纪60年代左右径流量较大，但在进入60年代中后期之后，年径流量呈逐渐减小的趋势，这种趋势在80年代附近达到极小值，此后径流量逐渐回升，并在90年代后逐渐进入相对丰水期。

Abstract

This study applied the HilbertHuang Transform (HHT) in the multipletimescales analysis of annual runoff series in the Yarlung Zangbo River. With the measured annual runoff data from 1956 to 2000 in the Yarlung Zangbo River

the Intrinsic Mode Function (IMF) and Hilbert spectrum were used to extract hydrological time series periods and the evolution trends of the natural annual runoff. The results showed that the annual runoff periods of the Yarlung Zangbo River include 3

6~8

11~13

16~17 and 22~24 years

respectively. It indicated that the annual runoff of the main and tributary of the Yarlung Zangbo river had an obvious decline trend during 1960s and reached the minimum in 1980s. since then

the annal runoff increased and a relatively wet season occurred in 1990s.

关键词

雅鲁藏布江HilbertHuang变换径流周期分析变化趋势

Keywords

the Yarlung Zangbo RiverHilbertHuang Transformrunoffperiodic variationevolution trend

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School of Geography and Planning, Sun Yat-sen University

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South China Sea Marine Survey and Technology Center, SOA

Department of Water Resources and Environment, Sun Yat-sen University

South China Institute of Environmental Sciences,, Guangzhou

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