径流变异对黑河流域上游径流统计特征与频率分析的影响
P333; [目的]受环境变化的影响,流域径流表现出显著的变异特征,研究径流统计特征和频率分析对水资源规划和水利工程的建设具有重要意义.[方法]以黑河流域上游年径流量和年最大洪峰流量为研究对象,分别采用定点变宽窗口(A型窗口)和变点定宽窗口(B型窗口)2种分析窗口截取的径流序列(窗口序列)进行分析,利用优化适线法分析窗口序列的统计特征,并推求径流设计值.应用线性趋势分析法、MMK检验法和启发式分割法对窗口序列进行趋势和突变分析.[结果]①年径流量估计参数Ex在A、B型窗口分析中呈显著增加趋势并存在突变,Cv在A型窗口分析中呈显著增加趋势,在B型窗口分析中存在突变.Cs在B型窗口分析中存在突变....
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Published in | Guanʻgai paishui xuebao Vol. 42; no. 7; pp. 75 - 85 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | Chinese English |
Published |
Xinxiang City
Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage
01.07.2023
扬州大学现代农村水利研究院,江苏扬州225009 扬州大学水利科学与工程学院,江苏扬州225009%扬州大学水利科学与工程学院,江苏扬州225009 |
Subjects | |
Online Access | Get full text |
ISSN | 1672-3317 |
DOI | 10.13522/j.cnki.ggps.2022247 |
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Abstract | P333; [目的]受环境变化的影响,流域径流表现出显著的变异特征,研究径流统计特征和频率分析对水资源规划和水利工程的建设具有重要意义.[方法]以黑河流域上游年径流量和年最大洪峰流量为研究对象,分别采用定点变宽窗口(A型窗口)和变点定宽窗口(B型窗口)2种分析窗口截取的径流序列(窗口序列)进行分析,利用优化适线法分析窗口序列的统计特征,并推求径流设计值.应用线性趋势分析法、MMK检验法和启发式分割法对窗口序列进行趋势和突变分析.[结果]①年径流量估计参数Ex在A、B型窗口分析中呈显著增加趋势并存在突变,Cv在A型窗口分析中呈显著增加趋势,在B型窗口分析中存在突变.Cs在B型窗口分析中存在突变.年径流量不同频率设计值在A、B型窗口分析中呈显著增加趋势并存在突变.②年最大洪峰估计参数Cv在A型窗口分析中存在突变,Ex在B型窗口分析中存在突变,Cs在B型窗口分析中呈显著增加趋势并存在突变.年最大洪峰不同频率设计值在A型窗口分析中存在增加趋势但不显著并存在突变,在B型窗口分析中存在显著增加趋势和突变.[结论]当径流过程发生变异时,在径流序列足够长的情况下,径流序列的长度越长,越能削弱径流序列波动性对.径流序列统计特征和频率分析的影响.对于波动剧烈的径流序列,更应该使用长序列进行水文频率分析. |
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AbstractList | P333; [目的]受环境变化的影响,流域径流表现出显著的变异特征,研究径流统计特征和频率分析对水资源规划和水利工程的建设具有重要意义.[方法]以黑河流域上游年径流量和年最大洪峰流量为研究对象,分别采用定点变宽窗口(A型窗口)和变点定宽窗口(B型窗口)2种分析窗口截取的径流序列(窗口序列)进行分析,利用优化适线法分析窗口序列的统计特征,并推求径流设计值.应用线性趋势分析法、MMK检验法和启发式分割法对窗口序列进行趋势和突变分析.[结果]①年径流量估计参数Ex在A、B型窗口分析中呈显著增加趋势并存在突变,Cv在A型窗口分析中呈显著增加趋势,在B型窗口分析中存在突变.Cs在B型窗口分析中存在突变.年径流量不同频率设计值在A、B型窗口分析中呈显著增加趋势并存在突变.②年最大洪峰估计参数Cv在A型窗口分析中存在突变,Ex在B型窗口分析中存在突变,Cs在B型窗口分析中呈显著增加趋势并存在突变.年最大洪峰不同频率设计值在A型窗口分析中存在增加趋势但不显著并存在突变,在B型窗口分析中存在显著增加趋势和突变.[结论]当径流过程发生变异时,在径流序列足够长的情况下,径流序列的长度越长,越能削弱径流序列波动性对.径流序列统计特征和频率分析的影响.对于波动剧烈的径流序列,更应该使用长序列进行水文频率分析. |
Author | XI Haichao XIE Yangyang ZHANG, Qin SHEN, Teng LIU Saiyan HUANG Chengjian |
AuthorAffiliation | 扬州大学水利科学与工程学院,江苏扬州225009%扬州大学水利科学与工程学院,江苏扬州225009;扬州大学现代农村水利研究院,江苏扬州225009 |
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Author_FL | ZHANG Qin XI Haichao XIE Yangyang SHEN Teng LIU Saiyan HUANG Chengjian |
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Copyright | 2023. This work is published under https://creativecommons.org/licenses/by-nc-nd/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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DocumentTitle_FL | Runoff Variation and Its Effect on Statistical Characteristics and Frequency of Runoff in the Upper Reaches of Heihe River Basin |
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Keywords | 启发式分割法 time-varying characteristics heuristic segmentation method frequency analysis 频率分析 黑河流域 trend test 时变特征 趋势检验 Heihe River Basin |
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SubjectTerms | Annual runoff Coefficient of variation Design Design analysis Design parameters Environmental changes Flooding Floods Flow measurement Frequency analysis Frequency variation Heuristic methods Impact analysis Parameter estimation Parameter identification Pattern analysis Project engineering River basins Rivers Runoff Sequences Statistical analysis Trend analysis Trends Variation Water resources |
Title | 径流变异对黑河流域上游径流统计特征与频率分析的影响 |
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