GSFLOW-Coupled Ground-water and Surface-water FLOW model based on the integration of the Precipitation-Runoff Modeling System (PRMS) and the Modular …
SL Markstrom, RG Niswonger, RS Regan… - US Geological Survey …, 2008 - pubs.usgs.gov
The need to assess the effects of variability in climate, biota, geology, and human activities
on water availability and flow requires the development of models that couple two or more …
on water availability and flow requires the development of models that couple two or more …
Realistic permeability distributions in faults and sediments: The key to predicting fluid flow in sedimentary basins
The permeability of faults and their sedimentary host rocks is a critical input for models of
fluid flow in sedimentary basins. Permeability of sedimentary rocks can vary by orders of …
fluid flow in sedimentary basins. Permeability of sedimentary rocks can vary by orders of …
An iterative normal-score ensemble smoother for dealing with non-Gaussianity in data assimilation
Abstract The ensemble Kalman filter (EnKF) has been widely applied to assimilate dynamic
data such as hydraulic head in geologic models for improved predictions over the past …
data such as hydraulic head in geologic models for improved predictions over the past …
A comparative study of three-dimensional hydraulic conductivity upscaling at the macro-dispersion experiment (MADE) site, Columbus Air Force Base, Mississippi …
Summary Simple averaging, simple-Laplacian, Laplacian-with-skin, and non-uniform
coarsening are the techniques investigated in this comparative study of three-dimensional …
coarsening are the techniques investigated in this comparative study of three-dimensional …
[PDF][PDF] Comparison of age distributions estimated from environmental tracers by using binary-dilution and numerical models of fractured and folded karst: Shenandoah …
RM Yager, LN Plummer, LJ Kauffman… - Hydrogeology …, 2013 - academia.edu
Measured concentrations of environmental tracers in spring discharge from a karst aquifer in
the Shenandoah Valley, USA, were used to refine a numerical groundwater flow model. The …
the Shenandoah Valley, USA, were used to refine a numerical groundwater flow model. The …
MODFLOW–LGR—Documentation of ghost node local grid refinement (LGR2) for multiple areas and the boundary flow and head (BFH2) package
This report documents the addition of ghost node Local Grid Refinement (LGR2) to
MODFLOW-2005, the US Geological Survey modular, transient, three-dimensional, finite …
MODFLOW-2005, the US Geological Survey modular, transient, three-dimensional, finite …
Impact of upscaling on solute transport: Traveltimes, scale dependence of dispersivity, and propagation of uncertainty
D Fernàndez‐Garcia… - Water Resources …, 2007 - Wiley Online Library
Efficiency constraints in applying numerical models to real problems force the use of a
coarse discretization of the domain compared with the detailed scale required for the most …
coarse discretization of the domain compared with the detailed scale required for the most …
Revisiting MODFLOW's capability to model flow through sedimentary structures
Sedimentary structures have unique geometries and anisotropic hydraulic conductivity, both
of which control groundwater flow. Traditional finite‐difference simulators (eg, MODFLOW) …
of which control groundwater flow. Traditional finite‐difference simulators (eg, MODFLOW) …
Comparison of alternative representations of hydraulic-conductivity anisotropy in folded fractured-sedimentary rock: modeling groundwater flow in the Shenandoah …
A numerical representation that explicitly represents the generalized three-dimensional
anisotropy of folded fractured-sedimentary rocks in a groundwater model best reproduces …
anisotropy of folded fractured-sedimentary rocks in a groundwater model best reproduces …
Steady-state saturated groundwater flow modeling with full tensor conductivities using finite differences
We present a new 3D steady-state saturated groundwater-flow forward-simulator with full
conductivity tensors using a 19-points block-centered finite-difference method. Hydraulic …
conductivity tensors using a 19-points block-centered finite-difference method. Hydraulic …