基于LH-OAT的推理公式法參數(shù)敏感性分析
發(fā)布時(shí)間:2018-10-30 06:12
【摘要】:為定性了解不同洪水頻率下匯流參數(shù)m,平均比降J兩個(gè)參數(shù)對(duì)推理公式法進(jìn)行無(wú)資料地區(qū)產(chǎn)流模擬的影響,利用LH-OAT全局敏感度分析方法對(duì)推理公式法進(jìn)行參數(shù)敏感性分析。以兩個(gè)不同分區(qū)的小流域(山西省方山縣圪洞溝和孝義市下堡河流域)匯流為例,研究確定不同洪水頻率下推理公式法參數(shù)的敏感性,確定參數(shù)敏感程度和變化規(guī)律,為模型參數(shù)率定提供數(shù)值參考。研究表明,推理公式法參數(shù)對(duì)洪峰值敏感性排序?yàn)閙J;m和J的敏感性隨著洪水頻率的減小呈現(xiàn)減弱趨勢(shì),兩個(gè)參數(shù)隨洪水頻率變化的速率為V_mV_J。
[Abstract]:In order to find out qualitatively the influence of two parameters, I. e., the confluence parameter m and the average ratio drop J under different flood frequency, on the simulation of runoff production in non-data area by the method of inference formula, The LH-OAT global sensitivity analysis method is used to analyze the parameter sensitivity of the reasoning formula method. Taking the confluence of two small watersheds (Gedonggou, Fangshan County, Shanxi Province and Xiapu River Basin, Xiaoyi City) as an example, the sensitivity of reasoning formula parameters under different flood frequencies is studied, and the sensitivity and variation of parameters are determined. It provides a numerical reference for the determination of the model parameter rate. The results show that the sensitivity of mJ;m and J to the flood peak sensitivity of the inferential formula method decreases with the decrease of flood frequency, and the variation rate of the two parameters with flood frequency is VmVJJ.
【作者單位】: 中水北方勘測(cè)設(shè)計(jì)研究有限責(zé)任公司;
【基金】:山西省國(guó)際科技合作計(jì)劃項(xiàng)目(2013081034) 山西省水利廳水利技術(shù)項(xiàng)目研究與推廣項(xiàng)目 2015年度山西省研究生教育創(chuàng)新項(xiàng)目(2015SY18)
【分類號(hào)】:TV122.3;TV87
[Abstract]:In order to find out qualitatively the influence of two parameters, I. e., the confluence parameter m and the average ratio drop J under different flood frequency, on the simulation of runoff production in non-data area by the method of inference formula, The LH-OAT global sensitivity analysis method is used to analyze the parameter sensitivity of the reasoning formula method. Taking the confluence of two small watersheds (Gedonggou, Fangshan County, Shanxi Province and Xiapu River Basin, Xiaoyi City) as an example, the sensitivity of reasoning formula parameters under different flood frequencies is studied, and the sensitivity and variation of parameters are determined. It provides a numerical reference for the determination of the model parameter rate. The results show that the sensitivity of mJ;m and J to the flood peak sensitivity of the inferential formula method decreases with the decrease of flood frequency, and the variation rate of the two parameters with flood frequency is VmVJJ.
【作者單位】: 中水北方勘測(cè)設(shè)計(jì)研究有限責(zé)任公司;
【基金】:山西省國(guó)際科技合作計(jì)劃項(xiàng)目(2013081034) 山西省水利廳水利技術(shù)項(xiàng)目研究與推廣項(xiàng)目 2015年度山西省研究生教育創(chuàng)新項(xiàng)目(2015SY18)
【分類號(hào)】:TV122.3;TV87
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8 陳家琦 ,徐啟(艸q,
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