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Steady-State Unconfined Aquifer Simulation of the Gareh-Bygone Plain, Iran
2012
Open Hydrology Journal
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Estimated hydraulic conductivity, K's, and related confidence interval for four sub-zones (Z1, Z2, Z3, and Z4) of GBA for the ten different steady-state periods. Fig. (10) . ...
Also, the steady-state groundwater model can be a part of unsteadystate modeling provided that estimated parameters are transferred to the unsteady simulation. ...
doi:10.2174/1874378101206010058
fatcat:pznpi5hk2ffe5lpfikgft4kn3q
Optimum experimental design of a monitoring network for parameter identification at riverbank well fields
2015
Journal of Hydrology
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Under the assumption of steady-state flow, an analytical approach for determining the key hydraulic parameters (aquifer transmissivity and riverbed filtration resistance) between a stream and a hydraulically ...
near the Kuybyshev Reservoir, Russia, was designed to minimise the uncertainty in the estimates of hydraulic parameters. ...
Acknowledgements This research was partially supported by grants from the National Natural Science Foundation of China (No. 41301025 ...
doi:10.1016/j.jhydrol.2015.02.004
fatcat:2ox2kcs3jbc7dbuxgzhessnzku
An Integrated Approach for Studying the Hydrology of the Ljubljansko Polje Aquifer in Slovenia and Its Simulation
2019
Water
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The results were then used as boundary conditions imposed on a transient state groundwater flow model performed in finite element subsurface flow simulation system (FEFLOW 6.2). ...
Since boundary conditions are essential for simulating groundwater flow in a sensitive aquifer, a modelling system of rivers and channels (MIKE 11) and water flow and balance simulation model (WaSiM) were ...
The funders had no role in the design of the study, in the collection, analyses, or interpretation of the data, in the writing of the manuscript, or in the decision to publish the results. ...
doi:10.3390/w11091753
fatcat:3wgzwip52bdvbhkqhtg2s5qh3e
Modelling groundwater flow and advective contaminant transport in the Bou-Areg unconfined aquifer (NE Morocco)
2008
Journal of Hydro-environment Research
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A three-dimensional finite-difference groundwater flow model was implemented to investigate the variety of hydrogeological conditions and to simulate the behavior of the flow system under different stresses ...
The two-layer model was calibrated with two steps: a steady state calibration, using observed groundwater levels from 1990, and a transient calibration and verification, using observed groundwater levels ...
Also, we thank the Agency of Moulouya Hydraulic basin of Oujda for their data contribution. ...
doi:10.1016/j.jher.2008.08.003
fatcat:tqibm3cunra6lhll7eipenaadu
Mathematical Modeling of Bara Groundwater System Central Sudan
2012
Journal of Ecosystem & Ecography
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the aquifers, water released from storage in the main aquifer due to heavy pumping), in addition to the prediction of the reactions of the hydraulic system due to groundwater withdrawal, and final determination ...
Groundwater has proved to be a major resource in Northern Kordofan State (NKS) in the development plans of water supply, irrigation as well as industrial sectors. ...
The safe yield of the lower confined aquifer is linked to a dynamic water level on top of this aquifer i.e. less than 181m, and can be estimated from the presented model results. ...
doi:10.4172/2157-7625.1000120
fatcat:ajk3ztutwnefxiwhgdhzuvihyy
Numerical groundwater flow modeling of Kohat basin : An example from Himalayan fold and thrust belt Pakistan
2021
Mausam
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The hydraulic heads of the observation wells were used as initial conditions for steady state simulation; the model successfully generated heads calibrated with 95% confidence interval with correlation ...
The output is focused to predict the groundwater breed zone resulted in groundwater flow pattern, which closely resembled the natural flow. ...
Disclaimer : The contents and views expressed in this research paper/article are the views of the authors and do not necessarily reflect the views of the organizations they belong to. ...
doi:10.54302/mausam.v69i2.305
fatcat:w4hny754fff5ray7mqjt2aks5i
Assessment of the potentiometric drawdown in the Guarani Aquifer System in Bauru/SP by a model of analytical elements
2018
Revista Brasileira de Recursos Hídricos
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The Analytic Element Method was used for groundwater flow modeling at steady-state, which includes the regional flow, the water withdrawal from wells and the main local geological conditions. ...
The hydraulic gradient 0.82 m/km was estimated in the GAS in Bauru City. The potentiometric drawdown in the GAS in Bauru was estimated as 50 m since the beginning of the groundwater exploitation. ...
The groundwater flow was modified and directed to the city center. The drawdown at steady-state flow after the groundwater exploitation of GAS in 1988 and 2014 reached 20 and 50 m, respectively. ...
doi:10.1590/2318-0331.0318170121
fatcat:3stzpb3s75cjddy7klcm2ykkia
Ground water flow modeling for calibrating steady state using MODFLOW software: a case study of Mahesh River basin, India
2016
Modeling Earth Systems and Environment
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Groundwater flow models are used to calculate the rate and direction of movement of groundwater through aquifers. ...
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. ...
The calibration of the model parameters was conducted under steady-state flow and Transient state conditions. ...
doi:10.1007/s40808-015-0049-7
fatcat:bbj4lfkitfahnjzbyvcnkagsia
Reducing Uncertainty in Calibrating Aquifer Flow Model with Multiple Scales of Heterogeneity
2013
Ground Water
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Due to uncertainties such as a lack of understanding of subsurface processes and a lack of techniques to parameterize the subsurface environment (including hydraulic conductivity, source/sink rate, and ...
Introduction While computer modeling plays an essential role in hydrogeology, due to uncertainties in describing aquifer parameters, flow and transport processes, and the associated initial and boundary ...
The author also acknowledges the support from the Center of Fundamental of Subsurface Flow, the School of Energy Resources at the University of Wyoming, NSF CI-WATER (Cyberinfrastructure to Advance High ...
doi:10.1111/gwat.12111
pmid:24749908
fatcat:4u5kdfkltzb2zbdyz7vjdahsva
Natural vs. artificial groundwater recharge, quantification through inverse modeling
2013
Hydrology and Earth System Sciences
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The study used the MODFLOW-2000 to estimate recharge for both steady- and unsteady-state conditions. ...
</strong> Estimating the change in groundwater recharge from an introduced artificial recharge system is important in order to evaluate future water availability. ...
The authors are also grateful to Eric Hooglund for review of the manuscript. Edited by: T. P. A. Ferre ...
doi:10.5194/hess-17-637-2013
fatcat:pbwbzdx63jgl5pifdhogbkix7m
Natural vs. artificial groundwater recharge, quantification through inverse modeling
2012
Hydrology and Earth System Sciences Discussions
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The study used the MODFLOW-2000 to estimate recharge for both steady-and unsteady-state conditions. ...
Estimating the change in groundwater recharge from an introduced artificial recharge system is important in order to evaluate future water availability. ...
The authors are also grateful to Eric Hooglund for review of the manuscript. Edited by: T. P. A. Ferre ...
doi:10.5194/hessd-9-9767-2012
fatcat:kp3r4yu5pbagboiqyw5a6q7yie
Can we simulate regional groundwater flow in a karst system using equivalent porous media models? Case study, Barton Springs Edwards aquifer, USA
2003
Journal of Hydrology
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The MODFLOW code was used for the distributed parameter model. Estimation of hydraulic conductivity distribution was optimized by using a combination of trial and error and automated inverse methods. ...
The purpose of this study was to evaluate two different equivalent porous media approaches: lumped and distributed parameter, for simulating regional groundwater flow in a karst aquifer and to evaluate ...
Geological Survey), Steve Worthington (Worthington Groundwater, Canada), and Martin Sauter (University of Tubingen, Germany). ...
doi:10.1016/s0022-1694(03)00064-7
fatcat:oivwu6mv4fcnveeecidtm7wgdm
Numerical understanding of regional scale water table behavior in the Guadalupe Valley aquifer, Baja California, Mexico
2006
Hydrology and Earth System Sciences Discussions
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A steady-state calibration model was carried out in order to obtain the best possible match to measured levels at the Guadalupe Valley Aquifer. ...
The State of Baja California has been subject to an increment of the agricultural, urban and industrials activities, implicating a growing water-demand. ...
The RMSE relation of the steady-state calibration results is 5.48 m for January 1983. ...
doi:10.5194/hessd-3-707-2006
fatcat:u4prkb7rfvatzivex6yfsa5eju
Glacial Melt in the Canadian Rockies and Potential Effects on Groundwater in the Plains Region
2022
Water
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A growing concern relates to the significant glacier melt estimated from glacier mass balances, which indicate that glaciers and ice fields have experienced considerable mass losses over the last 15 years ...
The contribution of glacier water in the eastern part of the Rockies is time-dependent with delayed groundwater flows of 1000s of years in the Front ranges, 1000s to 100,000s of years in the foothills ...
Acknowledgments: The authors would like to acknowledge continued support of the Groundwater Geoscience program of the Geological Survey of Canada (National Aquifer and Groundwater Accounting Project), ...
doi:10.3390/w14050733
fatcat:cjpcvcpxrvhvtlhl4rz3mr7xny
A Steady-State Model to Simulate Groundwater Flow in Unconfined Aquifer
2020
Applied Sciences
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In particular, groundwater flow simulations were performed for a multilayered, unconfined aquifer in steady-state conditions for different thicknesses of the aquifer's saturated zone. ...
The hydraulic and hydrogeological features of the Caposele aquifer have been investigated by using a numerical groundwater flow model. ...
Acknowledgments: Authors are grateful to four anonymous reviewers for their helpful advice. ...
doi:10.3390/app10082708
fatcat:5ue652m5ufhdpik7w4spw7cyba
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