Effects of source size, monitoring distance and aquifer heterogeneity on contaminant mass discharge and plume spread uncertainty

CORC > 青海盐湖研究所 > 中国科学院青海盐湖研究所 > 青海盐湖研究所知识仓储

	Effects of source size, monitoring distance and aquifer heterogeneity on contaminant mass discharge and plume spread uncertainty
	Cao, Guangzhu 1; Qin, Ronggao 1,2; Wu, Yanqing 2; Wu, Jun 3,4; Xu, Zengguang 5; Zhang, Chi 2
刊名	ENVIRONMENTAL FLUID MECHANICS
	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
内容类型	期刊论文
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.