Analog-model studies of ground-water hydrology in the Houston District, Texas

Jorgensen, Donald G.

doi:10.3133/ofr74113

Cited by 37 publications

(36 citation statements)

References 5 publications

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“…Transmissivities of the aquifers are of the same orders of magnitude as those reported for the respective aquifers in previous studies (Wesselman, 1972;Jorgensen, 1975;Carr and others, 1985;Baker, 1986;Kasmarek and Strom, 2002;Ryder and Ardis, 2002). However, the distributions of transmissivity show that, generally, the largest values are coincident with areas of large withdrawals.…”

Section: Simulated Hydraulic Properties Associated With Ground-water mentioning

confidence: 52%

“…Several other previous studies provide estimates of transmissivity for parts of or counties in the GAM area (for example, Jorgensen, 1975); those estimates generally are within the ranges listed above.…”

Section: Explanationmentioning

confidence: 93%

“…The model encompassed 27,000 mi 2 , which included all of Galveston and Harris Counties and parts of Brazoria, Chambers, Fort Bend, Hardin, Jefferson, Liberty, Matagorda, Montgomery, Waller, and Wharton Counties. The vertical discretization of the aquifers was based on the previous modeling studies of the hydrogeology in the area by the USGS (Wood and Gabrysch, 1965;Jorgensen, 1975;and Meyer and Carr, 1979). The model used a uniformly spaced grid of 30 rows and 39 columns with a block size of 7.2 mi 2 and had the ability to simulate the release of water from sand and clay storage as water levels (hydraulic heads, or heads) declined.…”

Section: Previous Studiesmentioning

confidence: 99%

“…The second ground-water-flow model (Jorgensen, 1975) was an updated electric-analog model that used updated and additional hydrologic data from 1890 to 1970. The two-layer conceptual model divided the aquifer system into the Chicot and Evangeline aquifers, and the electric-analog model made allowances for the vertical movement of water between the two aquifers.…”

Section: Previous Studiesmentioning

confidence: 99%

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Hydrogeology and simulation of ground-water flow and land-surface subsidence in the northern part of the Gulf Coast aquifer system, Texas

Kasmarek¹,

Robinson²

2004

Scientific Investigations Report

107

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Section: Simulated Hydraulic Properties Associated With Ground-water mentioning

confidence: 52%

Section: Explanationmentioning

confidence: 93%

Section: Previous Studiesmentioning

confidence: 99%

Section: Previous Studiesmentioning

confidence: 99%

See 2 more Smart Citations

Hydrogeology and simulation of ground-water flow and land-surface subsidence in the northern part of the Gulf Coast aquifer system, Texas

Kasmarek¹,

Robinson²

2004

Scientific Investigations Report

107

View full text Add to dashboard Cite

“…However, when fresh water is removedfrom the aquifer for useor when fresh water flowthrough is otherwise interrupted, salt water may encroach inland (Ballentine et al, 1972). A comparable problem can exist along canals dredged inland f rom coastlines (Jorgensen, 1977).…”

mentioning

confidence: 99%

Analysis of ecological effects of geopressured-geothermal resource development. Geopressured-geothermal technical paper No. 4

1979

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Groundwater Models and Their Role in Assessment and Management of Groundwater Resources and Pollution

Thangarajan

Groundwater

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PREAMBLEOne can infer the past behaviour of an aquifer system from the available earlier field records, but there is no way of computing the future behaviour of the regional aquifer system unless it is actually subject to the stresses. A full-scale experiment would be prohibitively costly and time consuming. The only feasible recourse, therefore, is to appropriately simulate the aquifer and study its response to several input/output schemes and thereby evolve the optimal management schemes. A groundwater model is thus a simplified version of the real system that approximately simulates the input-output stresses and response relations of the system. One has to understand here that normally the real system is simplified to model the system as such there is no unique model for a given groundwater system. Normally, models are classified as predictive, interpretive and generic models. Predictive models are used to predict the future response of the aquifer, which needs a calibrated and validated model. Interpretive models are used for studying system dynamics and it is generally used for optimal data network design. Generic models are used to understand the flow dynamics in hypothetical situations.H. Skibitzke and J. Karplus during sixties introduced the analogy between groundwater flow in porous medium and flow of electric current in resistancecapacitance (R-C) network and simulated the groundwater flow system. M. ThangarajanSince then there were a lot of advancement in the modeling technology as well as understanding the flow dynamics in complex aquifer systems. Early eighties saw the era of numerical simulation technique in replacing the time consuming electric analog modeling techniques. The time old Hele-Shaw physical model to simulate density dependant flow was replaced by a powerful numerical model. Numerous numerical methods (Finite Difference, Finite Element and Integrate-finite Difference, etc.) were developed in eighties and nineties to simulate the realistic condition of groundwater flow system in porous medium. Though, a good perfection could be achieved in simulating continuous porous medium, we have no answer for non-continuum medium such as weathered fractured zone. Future attention has to be focused on the development of easily workable non-continuum models and apply them to assess the regional groundwater potential and contaminant migration in fractured medium. Another area of modeling technology to be perfected is the simulation of soil moisture and contaminant migration in the vadose zone and the simulation of interactions between surface water and groundwater.

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Analog-model studies of ground-water hydrology in the Houston District, Texas

Cited by 37 publications

References 5 publications

Hydrogeology and simulation of ground-water flow and land-surface subsidence in the northern part of the Gulf Coast aquifer system, Texas

Hydrogeology and simulation of ground-water flow and land-surface subsidence in the northern part of the Gulf Coast aquifer system, Texas

Analysis of ecological effects of geopressured-geothermal resource development. Geopressured-geothermal technical paper No. 4

Groundwater Models and Their Role in Assessment and Management of Groundwater Resources and Pollution

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