| 基于LH-OAT的SWMM模型参数敏感性分析 |
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| 引用本文： | 朱嘉祺,徐向阳,何,爽.基于LH-OAT的SWMM模型参数敏感性分析[J].中国农村水利水电,2014,0(3):84-87. |
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| 作者姓名： | 朱嘉祺 徐向阳 何 爽 |
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| 作者单位： | 1. 河海大学水文水资源学院 |
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| 基金项目： | 城市低影响开发措施减灾补偿机理及空间布局研究 |
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| 摘 要： | 为了消除SWMM模型计算过程中的不确定性，明确参数对径流模拟的影响，进行了参数敏感性分析。通过LH-OAT敏感性分析方法，辨析出不同参数在昭通市应用时对径流模拟结果的影响程度，确定对其影响较大的若干敏感参数，为参数的率定提供参考。研究结果表明对径流系数影响最大的参数是入渗衰减系数，对洪峰流量影响最大的参数是不渗透性。提高了SWMM模型在金沙江流域应用的可靠性。
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| 收稿时间： | 2013-09-29 |
| 修稿时间： | 2013-10-18 |
Analysis On Parameter Sensitivity Of SWMM Model Based On LH-OAT Method |
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| Abstract: | In order to eliminate the uncertainty in the calculation process and ascertain the influence of the parameters on the simulation of rainfall-runoff, the sensitivity of the parameters is analyzed．And by LH-OAT sensitivity analysis method, the influence degree of different parameters on the simulation results of runoff in ZhaoTong city is analyzed. Confirmed several parameters which have greater impact and provided a reference for the parameter calibration. The results indicated that the most sensitive parameter for runoff coefficient was the infiltration attenuation coefficient, the most sensitive parameter for the runoff peak flow was the Impervious rate. The reliability of SWMM model is improved when used in the Jinsha River Basin. |
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