Effects of source size, monitoring distance and aquifer heterogeneity on contaminant mass discharge and plume spread uncertainty
文献类型：期刊论文
| 作者 | Cao, Guangzhu1; Qin, Ronggao1,2; Wu, Yanqing2; Wu, Jun3,4 ; Xu, Zengguang5; Zhang, Chi2
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| 刊名 | ENVIRONMENTAL FLUID MECHANICS
 |
| 出版日期 | 2018-04-01 |
| 卷号 | 18期号:2页码:465-486 |
| 关键词 | Heterogeneous Aquifer Groundwater Monitoring Contaminant Plume Leaching Surface Numerical Simulation |
| 文献子类 | Article |
| 英文摘要 | Estimating the movement of dissolved contaminants in heterogeneous aquifers is very important for the monitoring design, risk assessment, and remediation of contaminated aquifers. This work explored the influence of source size, monitoring distance, and aquifer heterogeneity on the accuracy of contaminant mass discharge (CMD) estimation using leaching surface approach as well as on the plume spread uncertainty in a 2-D heterogeneous aquifer. The interaction among source size, monitoring distance, and aquifer heterogeneity regarding the accuracy of CMD estimation and the plume spread uncertainty at downstream of the contaminated aquifer was extensively investigated. The transient leaking of a contaminated aquifer in a saturated heterogeneous aquifer under steady-state flow conditions was simulated. The effect of aquifer heterogeneity on the CMD uncertainty was evaluated through the expected values and variance. The results showed that the CMD estimation error varied from underestimation in the mildly heterogeneous aquifer, over accurate estimation in the medium heterogeneous aquifer to overestimation in the highly heterogeneous aquifer. Additionally, the results illustrated that the mean and variance of the transverse spatial extent of the peak concentrations for the plume at the control plane were very sensitive to the aquifer heterogeneity and detectable concentrations of contaminants. |
| WOS关键词 | GRADIENT TRACER TEST ; POROUS-MEDIA ; SOLUTE TRANSPORT ; HYDRAULIC CONDUCTIVITY ; CAPE-COD ; DISPERSION ; SCALE ; SAND ; FLOW ; MACRODISPERSION |
| WOS研究方向 | Environmental Sciences & Ecology ; Mechanics ; Meteorology & Atmospheric Sciences ; Oceanography ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000429374800007 |
| 源URL | [http://ir.isl.ac.cn/handle/363002/6448]  |
| 专题 | 青海盐湖研究所_青海盐湖研究所知识仓储 青海盐湖研究所_盐湖地质与环境实验室 |
| 作者单位 | 1.Kunming Univ Sci & Technol, Fac Land Resource Engn, Kunming 650093, Yunnan, Peoples R China 2.Shanghai Jiao Tong Univ, Sch Environm Sci & Engn, 800 Dongchuan Rd, Shanghai 200240, Peoples R China 3.Chinese Acad Sci, Qinghai Inst Salt Lakes, 18 Xingning Rd, Xining 810008, Qinghai, Peoples R China 4.Univ Florida, IFAS, IRREC, 2199 South Rock Rd, Ft Pierce, FL 34945 USA 5.Xian Univ Technol, Inst Water Resources & Hydroelect Engn, 5 South Jinhua Rd, Xian 710048, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cao, Guangzhu,Qin, Ronggao,Wu, Yanqing,et al. Effects of source size, monitoring distance and aquifer heterogeneity on contaminant mass discharge and plume spread uncertainty[J]. ENVIRONMENTAL FLUID MECHANICS,2018,18(2):465-486. |
| APA | Cao, Guangzhu,Qin, Ronggao,Wu, Yanqing,Wu, Jun,Xu, Zengguang,&Zhang, Chi.(2018).Effects of source size, monitoring distance and aquifer heterogeneity on contaminant mass discharge and plume spread uncertainty.ENVIRONMENTAL FLUID MECHANICS,18(2),465-486. |
| MLA | Cao, Guangzhu,et al."Effects of source size, monitoring distance and aquifer heterogeneity on contaminant mass discharge and plume spread uncertainty".ENVIRONMENTAL FLUID MECHANICS 18.2(2018):465-486. |
入库方式： OAI收割
来源：青海盐湖研究所
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