| WEP模型全局参数敏感性分析及其在汉江上游流域的应用 |
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| 引用本文： | 雷晓辉,田雨,贾仰文,蒋云钟,王浩,刘清娥.WEP模型全局参数敏感性分析及其在汉江上游流域的应用[J].水文,2010,30(6). |
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| 作者姓名： | 雷晓辉 田雨 贾仰文 蒋云钟 王浩 刘清娥 |
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| 作者单位： | 中国水利水电科学研究院水资源研究所;天津大学建工学院;中山大学水资源与环境研究中心; |
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| 基金项目： | 目家自然科学基金创新研究群体科学基金项目，"十一五"国家科技支撑计划，国家重点基础研究发展计划(973计划) |
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| 摘 要： | 水文模型敏感性分析是用来确定控制模型效率关键参数非常有效的过滤工具之一,并可以帮助理解模型结构,乃至发现模型的结构缺陷,从而有可能改善模型结构.本文通过将全局敏感性分析方法的LH-OAT方法应用到WEP-L模型.并在汉江上游向家坪以上流域进行了成功应用.研究发现.通过LH-OAT方法分析,对于汉江上游向家坪以上流域,河道曼宁糙率和坡面曼宁糙率是影响NaSh效率系数最重要的参数.通过对这两个参数的手动调参,模拟的日Nash效率系数从0.35提高到0.75.
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| 关 键 词： | 分布式水文模型 LH-OAT WEP 敏感性分析 |
Global Parameter Sensitivity Analysis of WEP Model and Concerned Application in Hanjiang River Upstream |
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| LEI Xiao-hui,TIAN Yu,JIA Yang-wen,JIANG Yun-zhong,WANG Hao,LIU Qing-e.Global Parameter Sensitivity Analysis of WEP Model and Concerned Application in Hanjiang River Upstream[J].Hydrology,2010,30(6). |
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| Authors: | LEI Xiao-hui TIAN Yu JIA Yang-wen JIANG Yun-zhong WANG Hao LIU Qing-e |
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| Institution: | LEI Xiao-hui1,TIAN Yu1,2,JIA Yang-wen1,JIANG Yun-zhong1,WANG Hao1,LIU Qing-e1,3(1.China Institute of Water Resource and Hydropower Research,Beijing 100038,China,2.School of Civil Engineering,Tianjin University,Tianjin 300072,3.Center for Water Resources and Environment,Sun Yat-sen University,Guangzhou 510275,China) |
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| Abstract: | Model parameter analysis is usually considered as an efficient tool to select key parameters of simulation.Meanwhile,it helps researchers to understand the model structure,find some deficiencies and then improve it.In this paper,global parameter sensitivity analysis method,LH-OAT,was successfully applied to WEP model and a case study in the Hanjiang River upstream was also introduced.The results show that Manning coefficients are the most sensitive for model simulation in the upstream watershed of the Hanji... |
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| Keywords: | distributed hydrologic model WEP LH-OAT sensitivity analysis |
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