Flux-based contaminant transport in a GIS environment

Becker, Matthew W.; Jiang, Zhengzheng

doi:10.1016/j.jhydrol.2007.06.015

Cited by 5 publications

(2 citation statements)

References 18 publications

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“…This is accomplished with a fast Fourier transform reformulated for one‐sided Laplace transforms [ Becker and Charbeneau , 2000]. Readers are referred to the article by Becker and Jiang [2007] for a full discussion of technique.…”

Section: Methodsmentioning

confidence: 99%

Comparing flux‐averaged and resident concentration in a fractured bedrock using ground penetrating radar

Becker

Tsoflias

2010

Water Resources Research

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[1] Saline tracer transport experiments were performed to compare flux-averaged and resident concentration in a single subhorizontal fracture in sandstone bedrock. Tracer migration over a 14 m distance was monitored at an extraction well and imaged within the rock as it passed below a ground penetrating radar (GPR) positioned at the surface. Reflected radar amplitude was calibrated to tracer concentration by circulating saline fluid of known concentration through the fracture. Saline breakthrough curves measured at the well and within the rock were comparable but showed differences in both magnitude and shape. Transport differences were explored using flux-averaged and resident concentration first-passage-time models combined with streamline advective tracking. Application of the appropriate transport model to the two breakthrough curves produced identical estimates of dispersivity and similar estimates of effective fracture aperture. The tracer-derived fracture aperture also agreed reasonably well with hydraulic aperture derived from cross-hole pump tests. The availability of both flux and resident concentrations helped constrain the interpretation of the flow and transport behavior in the fracture. Flow appeared to be highly channelized with less than half the hydraulically swept area of the fracture contributing to efficient tracer transport.Citation: Becker, M. W., and G. P. Tsoflias (2010), Comparing flux-averaged and resident concentration in a fractured bedrock using ground penetrating radar, Water Resour. Res., 46, W09518,

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Section: Methodsmentioning

confidence: 99%

Comparing flux‐averaged and resident concentration in a fractured bedrock using ground penetrating radar

Becker

Tsoflias

2010

Water Resources Research

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“…Nowadays, a considerable number of models for runoff and water quality simulation are available to support decision making in a watershed scale, some of them integrated in GIS environments (Becker & Jiang 2007;Reddy et al, 2006, Schumann et al, 2000De Roo, 1998;Yang et al, 2000). Generally, complex model designs, which describe more precisely underlying physical processes, tend to need a higher amount of exacter input variables (Tong & Chen, 2002).…”

Section: Reviewmentioning

confidence: 99%

Development of a GIS-Based Information System for Watershed Monitoring in Mato Grosso, Central Brazil

Zeilhofer¹,

Lima²,

Lima³

et al. 2008

Pesq Geoc

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This paper describes the conceptual framework and implementation of a prototype for a GIS-based Information System for Watershed Monitoring and Planning in the state of Mato Grosso, Central Brazil. The system was developed to support the implementation of water resources management policies passed by Brazilian federal and state legislatures in 1997.The first phase of the information system development was focused on database design, to create modules for the storage and pre-processing of diverse environmental data sets and for georeferenced registration and control of water users. The GIS environment includes tools for data mining and integrating the NGFlow and QUAL2E models for river runoff and water quality simulation; these tools were successfully validated in the Cuiabá River basin. To guarantee acceptance and continuity of system maintenance in regions under development, GIS applications for watershed management should be component-based. They should also integrate models with robustness for input data that are poor in consistency and quality. Finally, they should be implemented with development tools already used by local technical staff and have a high degree of user friendliness.

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Estimation of nitrate load from septic systems to surface water bodies using an ArcGIS-based software

Wang¹,

Ye²,

Rios

et al. 2013

Environ Earth Sci

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Flux-based contaminant transport in a GIS environment

Cited by 5 publications

References 18 publications

Comparing flux‐averaged and resident concentration in a fractured bedrock using ground penetrating radar

Comparing flux‐averaged and resident concentration in a fractured bedrock using ground penetrating radar

Development of a GIS-Based Information System for Watershed Monitoring in Mato Grosso, Central Brazil

Estimation of nitrate load from septic systems to surface water bodies using an ArcGIS-based software

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