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首页> 外文期刊>Nordic hydrology >Variability of annual peak flows in the Beijiang River Basin, South China, and possible underlying causes
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Variability of annual peak flows in the Beijiang River Basin, South China, and possible underlying causes

机译：中国南方北江流域年高峰流量的变化及其潜在原因

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摘要

Peak flows are the most important flood parameter which relatively reflects the highest level and potential destructive power of a flood. Understanding peak flow changes can effectively capture a flood characteristic and is essential for developing flood control strategies. This study aims to reveal how regional peak flows evolved in recent decades, mainly from a non-linear perspective. The Beijiang River Basin (BRB) was chosen for the analysis, and hydrological data from four hydrologic stations were used. Methods including ensemble empirical mode decomposition and rescaled range analysis were applied to advance the research. Results indicate a non-significant uptrend and a multiple periodicity of peak flows in BRB. However, short periods were more distinct than long ones, In the future, peak flows may continue to increase over time. Such changes in peak flows are possibly due to local reservoir operations and the changing South Asian Summer Monsoon (SASM). The research suggests an increasing flood risk and recommends more regional flood adaptations to avoid flood losses for BRB. Synchronously, it provides a reference for studies regarding periodicity and the future trend of peak flows in other regions.
机译：峰值流量是最重要的洪水参数，相对反映了洪水的最高水位和潜在破坏力。了解峰值流量变化可以有效地捕获洪水特征，这对于制定洪水控制策略至关重要。这项研究的目的主要是从非线性的角度揭示近几十年来区域峰值流量是如何演变的。选择北江流域（BRB）进行分析，并使用来自四个水文站的水文数据。运用集成经验模态分解和重标范围分析等方法进行了研究。结果表明，BRB的上升趋​​势不明显，且流量呈多个周期性。但是，短时期比长时期更为明显。将来，高峰流量可能会随着时间的流逝而继续增加。高峰流量的这种变化可能是由于当地的水库运营和不断变化的南亚夏季风（SASM）引起的。该研究表明洪水风险在增加，并建议对地区进行更多的洪水适应，以避免BRB遭受洪水损失。同时，它为研究周期性和其他地区高峰流量的未来趋势提供了参考。

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  • 来源
    《Nordic hydrology》 |2017年第2期|442-454|共13页
  • 作者

    Xushu Wu; Zhaoli Wang; Xiaowen Zhou; Zhaoyang Zeng; Chengguang Lai; Xiaohong Chen;

  • 作者单位

    School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510641, China;

    School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510641, China;

    School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510641, China;

    School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510641, China;

    Center for Water Resources and Environment Research, Sun Yat-sen University, Guangzhou 510275, China , Guangdong Engineering Technology Research Center of Water Security Regulation and Control for Southern China, Guangzhou 510275, China;

    Center for Water Resources and Environment Research, Sun Yat-sen University, Guangzhou 510275, China , Guangdong Engineering Technology Research Center of Water Security Regulation and Control for Southern China, Guangzhou 510275, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Beijiang River Basin; ensemble empirical mode decomposition; periodicity; regional peak flows; South Asian Summer Monsoon;

    机译：北江流域;整体经验模态分解周期性;区域高峰流量;南亚夏季风;

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