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 inGuanʻgai paishui xuebao Vol. 42; no. 7; pp. 75 - 85
Main Authors XI Haichao, XIE Yangyang, LIU Saiyan, HUANG Chengjian, SHEN, Teng, ZHANG, Qin
Format Journal Article
LanguageChinese
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
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ISSN1672-3317
DOI10.13522/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.
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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XI Haichao
XIE Yangyang
SHEN Teng
LIU Saiyan
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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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Issue 7
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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PublicationTitle Guanʻgai paishui xuebao
PublicationTitle_FL Journal of Irrigation and Drainage
PublicationYear 2023
Publisher Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage
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
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StartPage 75
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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