沙漠绿洲地区地下水数值模型的参数灵敏度分析  

Parameter sensitivity analysis of groundwater numerical model in desert oasis area

作　　者：李飞[1] 李松达 单圣苏 唐石振 王霞雨 刘佩贵[1] LI Fei;LI Song-da;SHAN Sheng-su;TANG Shi-zhen;WANG Xia-yu;LIU Pei-gui(School of Civil and Hydraulic Engineering,Hefei University of Technology,Hefei 230009,Anhui,China)

机构地区：[1]合肥工业大学土木与水利工程学院,安徽合肥230009

出　　处：《地下水》2022年第5期5-6,46,共3页Ground water

基　　金：水文水资源与水利工程科学国家重点实验室“一带一路”水与可持续发展科技基金(2018nkms06)。

摘　　要：以塔克拉玛干沙漠南缘的绿洲为例,通过建立数值模拟模型,选取渗透系数、给水度、水力传导系数进行了参数的局部灵敏度分析和全局灵敏度分析。分析结果表明,地下水数值模型的结果对含水层渗透系数K最敏感,给水度S次之,对水力传导系数的敏感度C最小;此外,与局部灵敏度分析方法相比,全局灵敏度分析考虑了参数之间的相互作用对模型输出结果的影响,使分析结果更合理。Taking the oasis in the southern edge of the Taklimakan Desert as an example, by establishing a numerical simulation model, the local sensitivity analysis and the global sensitivity analysis of parameters were carried out by selecting the permeability coefficient, water supply and hydraulic conductivity coefficient.The analysis results show that the results of the groundwater numerical model are the most sensitive to the permeability coefficient K of the aquifer, followed by the water supply S, and the sensitivity C to the hydraulic conductivity coefficient is the smallest.In addition, compared with the local sensitivity analysis method, the global sensitivity analysis considers the influence of the interaction between the parameters on the model output results, which makes the analysis results more reasonable.

关 键 词：地下水数值模型 局部灵敏度分析 全局灵敏度分析 绿洲地区 

分 类 号：P641.2[天文地球—地质矿产勘探]