Three-dimensional hydraulic conductivity upscaling in groundwater modeling

Three-dimensional hydraulic conductivity upscaling in groundwater modeling

The main point of this paper is to propose a non-local three-dimensional hydraulic conductivity full tensor upscaling algorithm and code. The algorithm is capable of transforming very refined cell conductivity models into coarse block conductivity models for quick and accurate solution of the groundwater flow equation. Flow rate and hydraulic head gradient are the variables used to relate the o...

Comment on ‘‘Inverse groundwater modeling for hydraulic conductivity estimation using Bayesian model averaging

[1] Tsai and Li [2008] assert that the Bayesian information criterion (BIC) [Schwarz, 1978] is better suited for comparing models having different parameters than is the Kashyap criterion (KIC) [Kashyap, 1982] because a Fisher information term in the latter may rank models with relatively large parameter estimation uncertainties higher than other models. We start by noting that KIC reduces asym...

Large-scale hydraulic conductivities inferred from three- dimensional groundwater flow and He transport modeling in the Carrizo aquifer, Texas

[1] Through a series of groundwater flow and He transport simulations, this study illustrates the conceptual and practical gains achieved by expanding a two-dimensional (2-D) model to a true 3-D one through an application in the Carrizo aquifer and surrounding formations in southwestern Texas. The 3-D simulations allow for a more detailed and accurate definition of the heterogeneities of the sy...

Computer Erosion Modeling Considering Soil Hydraulic Conductivity

Improved computer models of erosion have been developed, considering soil hydraulic conductivity. The models deal with erosion of levees, dams and embankments due to overtopping. The simulations trace the formation of rills and gullies, beginning with initial overtopping and continuing to final breaching. Physical models performed at 1-g and high g using a geotechnical centrifuge have been used...

Measurement and Modeling of Unsaturated Hydraulic Conductivity