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Detecting Abrupt Change of Streamflow at Lintong Station of Wei River

机译：渭河临tong站水流突变检测

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摘要

According to abrupt diagnosis of runoff, two methods, that is, moving approximate entropy and moving permutation entropy, are used to analyse the abrupt year of the daily river runoff from 1961 to 2006 at Lintong station of Wei River in Loess Plateau. The runoff series are divided into 4 stages. With the analysis of hydrological characters of different stages, we find that there are abrupt changes at the three years 1972,1983, and 2002. The result shows that moving approximate entropy and moving permutation entropy methods are useful tools for abrupt diagnosis of runoff. The attribution of abrupt change at the Lintong runoff series is primarily due to the reduced precipitation, increased water conservancy project, increased water consumption of industry and agriculture, significantly decreased groundwater table, and increased evaporation.
机译：根据径流突变的诊断方法，采用移动近似熵和移动置换熵两种方法，分析了1961-2006年黄土高原渭河临daily站日径流量的突变年。径流系列分为四个阶段。通过分析不同阶段的水文特征，我们发现在1972、1983和2002的3年中，水位都有突变。结果表明，移动近似熵和移动置换熵方法是径流突变诊断的有用工具。临tong径流系列突变的原因主要是降水减少，水利工程增加，工农业用水量增加，地下水位明显减少和蒸发增加。

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  • 来源
    《Mathematical Problems in Engineering》 |2013年第7期|976591.1-976591.9|共9页
  • 作者

    Jingjing Fan; Qiang Huang; Jianxia Chang; Dongyong Sun; Shen Cui;

  • 作者单位

    Xi'an University of Technology, Xi'an 710048, China;

    Xi'an University of Technology, Xi'an 710048, China;

    Xi'an University of Technology, Xi'an 710048, China;

    Chang'an University, Xi'an 710054, China;

    Xi'an University of Technology, Xi'an 710048, China;

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