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Showing 1 to 20 of 246 for “"groundwater flow"”.
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Improving groundwater flow model parametrization techniques
Numerical modeling of groundwater flow is a powerful tool that can assist in hydrogeological analysis and understanding of groundwater system behavior. However, its results are highly dependent on the proper model parameterization (often, at least partially achieved through calibration). The …
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Digital Simulation of Hydrochemical Patterns in Regional Groundwater Flow
Made available in DSpace on 2014-12-11T18:10:03Z (GMT). No. of bitstreams: 1 7317406.pdf: 3240429 bytes, checksum: 66296902074817f46eecef3c6489a7df (MD5) Previous issue date: 1972
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Multiresolution statistical modeling with application to modeling groundwater flow
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1997.
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Multiresolution statistical modeling with application to modeling groundwater flow
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1997.
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Geochemical interpretation on groundwater flow in the Southern Great Basin
… of geochemical processes and integrated water flow can help identify groundwater sources and improve predictions of contaminant fate and transport in groundwater systems. Understanding groundwater flow paths in and around the Nevada Test Site (NTS) is important due to the possible migration of …
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Investigations of rapid groundwater flow and karst in the Chalk
… the occurrence and distribution of rapid groundwater flow in the Chalk and evaluates the degree of karstification. A survey of surface karst features revealed a clear spatial pattern in their distribution with three distinctive geomorphological zones. Stream sinks and dolines occur …
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Modelling the impact of total stress changes on groundwater flow
… the impact of total stress changes on groundwater flow in the vicinity of a salt tailings pile. Total stress and pore-pressure data observed at the Lanigan and Rocanville potash-mine sites were used to assist the development of a generic FEMWATER model. The original 3-D mesh considered …
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Fréchet Sensitivity Analysis and Parameter Estimation in Groundwater Flow Models
… corresponding to a multilayer aquifer/interbed groundwater flow model. The parameter estimation problem is formulated as an optimization problem, then addressed with algorithms based on adjoint equations, quasi-Newton schemes, and multilevel optimization. In addition to the parameter estimation …
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Temporal Dynamics of Groundwater Flow Direction in a Glaciated, Headwater Catchment
Shallow groundwater flow in the critical zone of steep headwater mountain catchments is often assumed to mimic surface topography. However, groundwater flow is influenced by other variables, such as the elevation of the water table and subsurface hydraulic conductivity, which can result in temporal …
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Theoretical Analysis of Regional Groundwater Flow in the Havana Region, Illinois
Made available in DSpace on 2014-12-09T20:34:37Z (GMT). No. of bitstreams: 1 7000870.pdf: 2252309 bytes, checksum: 9157a1e0b73b36122e3e70f331a49258 (MD5) Previous issue date: 1969
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Development of a Groundwater Flow Model for Hungry Valley, Washoe County, Nevada
… of the community is dependent on sustainable groundwater development. Previous hydrogeologic assessments and pumping tests have consistently concluded that the aquifers are of limited extent. The aquifers are characterized by low transmissivities with storativity values indicating the aquifers …
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An Investigation of Groundwater Flow in the Vicinity of Patoka Dam, Indiana
… and recently underwent risk assessment. A groundwater flow investigation using multiple fluorescent tracer tests, analysis of water-table elevations, isopach mapping of the Glen Dean Limestone, and spring hydrograph analysis was performed to better understand local groundwater hydrology in …
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A 3-dimensional H-adaptive algorithm for groundwater flow and contaminant transport
… cleanup and prevention of the deterioration of groundwater; The GWADAPT3 code is developed using the finite-element method and mesh adaptation to simulate groundwater flow and contaminant transport. The formulation is based on the equations for conservation of mass, Darcy's law for an …
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A 3-dimensional finite element method for groundwater flow and containment transport
A code was written to model groundwater flow and to solve for contaminant transport in variably saturated porous media using the Finite element method. The numerical code was written in FORTRAN 77. The GWGRID program was used for mesh generation. This numerical model was applied to two nuclear …
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Groundwater flow, hydrochemistry, and uranium deposition in the Powder River Basin, Wyoming
<p>The relation between regional groundwater flow, hydrochemistry, and uranium distribution in the Powder River Basin indicates that uranium was deposited during the Tertiary Period in groundwater recharge areas where the groundwater changed from a sulfate-bicarbonate water to a bicarbonate-rich …
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Groundwater flow in part of the Little Missouri River Basin, North Dakota
… and Cenozoic sediments. An evaluation of the groundwater flow in part of this valley was 'based on the present groundwater flow-system models. Abrupt changes in the hydrochemical facies have been explained relative to a continuous flow system. </p><p> The Little Missouri valley ls the …
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Impact of Phytoremediation System on Groundwater Flow in a Shallow Aquifer System
… methods for cleaning up contaminated soil and groundwater. Phytoremediation is an engineered method that utilizes plants and trees to remove or immobilize inorganic and organic contaminants. The plants and trees can contain contaminant plumes, uptake the contaminants, or aid in the degradation …
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Evaluation of Capture Analysis Bias Associated with Use of Nonlinear Groundwater Flow Models
… western U.S. typically recognizes surface and groundwater as different sources of water. Because these two systems are often truly connected, groundwater pumping can deplete surface water and is contributing to more frequent litigation by surface water right holders. Surface and groundwater …
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