| SWAT模型参数敏感性分析与自动率定的重要性研究——以玛纳斯河径流模拟为例 |
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| 引用本文： | 李慧,靳晟,雷晓云,朱连勇,张翔.SWAT模型参数敏感性分析与自动率定的重要性研究——以玛纳斯河径流模拟为例[J].水资源与水工程学报,2010,21(1):79-82. |
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| 作者姓名： | 李慧 靳晟 雷晓云 朱连勇 张翔 |
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| 作者单位： | 新疆农业大学,水利与土木工程学院,新疆,乌鲁木齐,830052 |
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| 基金项目： | "十一五"国家科技支撑计划项目(2007BAH12B03): "水资源与水灾害空间信息服务系统研发"，新疆水利水电工程重点学科基金 |
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| 摘 要： | 介绍了SWAT2005模型参数敏感性分析和自动率定模块的原理,并在新疆玛纳斯河流域中进行应用,通过敏感性分析及参数率定前后的结果对比,证明该模块对模型应用的重要性。根据LH-OAT敏感性分析法,辨析出影响玛纳斯河流域径流模拟结果精度的主要参数因子:积雪温度滞后因子(Timp)和基流回退系数(Alpha_Bf)。根据SCE参数自动率定法,确定出对径流模拟结果影响较大的11个参数值,并采用连续5年的实测日径流数据对模型进行了验证。结果表明:模型对日流量模拟的相对误差在模型校准期和验证期均小于20%,相关系数R2高于0.8,Nash-Suttcliffe系数Ens高于0.7,SWAT模型在玛纳斯河流域产流的模拟结果良好,值得进一步推广。
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| 关 键 词： | 径流模拟 SWAT2005模型 敏感性分析 自动率定 |
Study on the Importance of Sensitivity Analysis and Auto-calibration of SWAT Model:Taking the case stndy of Manasi Watershed |
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| LI Hui,JIN Sheng,LEI Xiao-Yun,ZHU Lian-Yong,ZHANG Xiang.Study on the Importance of Sensitivity Analysis and Auto-calibration of SWAT Model:Taking the case stndy of Manasi Watershed[J].Journal of water resources and water engineering,2010,21(1):79-82. |
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| Authors: | LI Hui JIN Sheng LEI Xiao-Yun ZHU Lian-Yong ZHANG Xiang |
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| Affiliation: | LI Hui,JIN Sheng,LEI Xiao-Yun,ZHU Lian-Yong,ZHANG Xiang (College of Water Conservancy , Civil Engineering,Xinjiang Agricultural University,Urmqi,Xinjiang 830052,China) |
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| Abstract: | This paper introduced the principle of sensitivity analysis and auto-calibration modules,and it was applied in Manasi watershed.Throngh the comparison of fore-and-aft result and the sensitivity analysis,it was proved that these modules are important for application.According to LH-OAT method,the main parameters which affected the simulated value in this watershed were the Timp and Alpha_Bf.According to SCE method,there were 11 ascertained parameters which had a significant influence on the daily runoff simu... |
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| Keywords: | run off simulation SWAT2005 model sensitivity analysis auto-calibration |
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