| 异参K的瞬时单位线研究 |
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| 引用本文： | 张文华,郭生练,李超群.异参K的瞬时单位线研究[J].水文,2009,29(3). |
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| 作者姓名： | 张文华 郭生练 李超群 |
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| 作者单位： | 1. 武汉大学水资源与水电工程科学国家重点实验室,湖北,武汉,430072;湖北省水文水资源局,湖北,武汉,430071
2. 武汉大学水资源与水电工程科学国家重点实验室,湖北,武汉,430072 |
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| 摘 要： | 纳希在假设入流过程经过n个具有相同调蓄参数k的线性水库的调蓄的情况下,推导出著名的纳希瞬时单位线.显然相同k值的假设是欠妥的,且求得的水库个数n一般不为整数.作者在各水库调蓄参数k各不相同的情况下,推导出瞬时单位线,并将各水库的后值与相应的河段比降建立了有机的联系,从而扩展了纳希瞬时单位线.
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| 关 键 词： | 瞬时单位线 拉普拉斯变换 调蓄参数 |
Study of Parameter K in the Formulation of Nash's Instantaneous Unit Hydrograph |
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| ZHANG Wen-hu,GUO Sheng-lian,LI Chao-qun.Study of Parameter K in the Formulation of Nash''s Instantaneous Unit Hydrograph[J].Hydrology,2009,29(3). |
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| Authors: | ZHANG Wen-hu GUO Sheng-lian LI Chao-qun |
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| Institution: | ZHANG Wen-hua1,2,GUO Sheng-lian1,LI Chao-qun1(1.State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan 430072,China 2.Hydrology and Water Resources Survey Bureau of Hubei Province,Wuhan 430071,China) |
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| Abstract: | Under the assumption that hydrograph generation is effected by n linear reservoirs with the same value of storage coefficient k,Nash proposed the formulation of instantaneous unit hydrograph,though considering parameter k as the same value in all reservoirs is not suitable obviously,and the derived value of n is not integral.In the case of taking parameter k as variable in every reservoir,the relationship between parameter k and the slope of the river was derived and then,the modified formulation of instant... |
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