Implementation of a 3-D groundwater flow model in a semi-arid region using MODFLOW and GIS tools: The Zéramdine–Béni Hassen Miocene aquifer system (east-central Tunisia)

Lachaal, Fethi; Mlayah, Ammar; Bédir, Mourad; Tarhouni, Jamila; Leduc, Christian

doi:10.1016/j.cageo.2012.05.007

Cited by 49 publications

(28 citation statements)

References 13 publications

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“…All GIS data required for conceptual modeling were converted to the appropriate formats for numerical modeling using ArcGIS 10.0 (ESRI) [6]. The database and groundwater modeling include some stages, which are shown in Figure 2.…”

Section: Methodsmentioning

confidence: 99%

Numerical Simulation of Groundwater Flow in a River Valley Basin in Jilin Urban Area, China

Qiu

Liang

Xiao

et al. 2015

Water

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Abstract:In order to evaluate the groundwater resources and aquifer system of the Jilin urban area (JUA), a groundwater numerical flow model was established by using the groundwater modeling system based on data from 190 boreholes. River stages were interpolated to control the groundwater flow field. The input parameters such as hydraulic conductivity and specific yield were based on data from 260 pumping test data. The model was calibrated by trial and error, simulated results were compared to the observed head and contour maps, which were generally in good agreement, and the root mean squared error was 0.66 m. Sensitivity analysis was carried out and recharge proved to be the most sensitive factor in this model. The water budget showed that the input was 2.07× 10

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Section: Methodsmentioning

confidence: 99%

Numerical Simulation of Groundwater Flow in a River Valley Basin in Jilin Urban Area, China

Qiu

Liang

Xiao

et al. 2015

Water

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“…A calibration aims to obtain an optimal fit between the calculated and measured data and is an important measure for modeling reliability (Lachaal et al 2012 In this study, the calibration approach is based on transient calibration considering (1) field-measured initial heads distributed through the model domain, (2) no calibration for boundary conditions, specifically recharge and abstraction through the simulation period, and (3) initial estimation of specific yield, specific storage, and porosity parameters derived from measured values and/or calibrated values from previous studies.…”

Section: Model Calibration and Validationmentioning

confidence: 99%

“…Recently, intersections among groundwater, surface water, and land use have become hot topics for scientific research (Cho et al 2009;Wang and Hejazi 2011;Xu et al 2012;Chung et al 2014). A spatial and temporal approach of groundwater simulation in different aquifers was investigated in several studies (Lachaal et al 2012;Benhamiche et al 2014;Liu et al 2014). Moukana and Koike (2008), Chen et al (2010), Sun et al (2011), and Chaudhuri and Ale (2014) assessed and/or simulated the relationship between land use and groundwater level in different regions.…”

Section: Introductionmentioning

confidence: 98%

Potential impacts of urban area expansion on groundwater level in the Gaza Strip: a spatial-temporal assessment

Eshtawi¹,

Evers

Tischbein³

2015

Arab J Geosci

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In this study, a 3-D groundwater flow model was developed using MODFLOW-USG to investigate the groundwater levels within the Gaza coastal aquifer. Recharge estimation is based on a comprehensive approach including the connection to a surface water model (SWAT) for determining percolation from rainfall as well as detailed approaches regarding further recharge components. An unstructured grid (Voronoi cells) generated by MODFLOW-USG engine was used to reduce run time within complicated aquifer boundary conditions. The results indicate a very good fit between measured and simulated heads. Long-term forecasting of the groundwater levels was carried out as an essential step to support realistic and sustainable water resources planning and decision making. The increasing built-up area was linked to the potential impacts of urban expansion relating to water supply quantities and groundwater recharge components. The percolation was reduced temporally and spatially in the forecasting period based on the projected built-up area as well as an urban-percolation index. Considering the current management situation, the annual groundwater level correlated negatively with the increasing built-up area; the regression line slope was −0.056 m/km 2 for the average groundwater levels while it became steeper at −0.23 m/km 2 in sensitive locations in the southern part of the Gaza Strip. The groundwater level trend index was developed as a spatial indicator for the appropriate management alternatives that can achieve less negative trend index.

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“…The MODFLOW model and the SWAP package were both tested (Xu et al, 2012) with an acceptable agreement between simulated and observed values using a twodimensional saturated-unsaturated groundwater table recharge in an arid irrigation area of north China. The MODFLOW model is suitable software for the analysis of hydrological processes, and can contribute to managing aquifers, especially those in arid and semi-arid regions (Fethi et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Interceptor Drainage Modelling to Manage High Groundwater Table on the Abyek Plain, Iran

Ghorbani

Lee

Wayayok

et al. 2016

Irrigation and Drainage

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High groundwater tables and soil salinity are a serious threat to agricultural areas, especially on the Abyek Plain, Iran. An interceptor drainage system was installed to lower the groundwater head and control soil salinity. Simulation is an appropriate approach to investigate possible groundwater behaviour in future conditions and to explore suitable designs for implementation. Ninety‐nine observation wells were installed around the interceptor drainage system in the Abyek Plain to monitor groundwater movement and salinity changes. Groundwater table fluctuation was measured monthly for 3 years from December 2010 until January 2014. A MODFLOW model was calibrated for the study area using the data measured through the observation wells. Assessment of the measured values indicated that the groundwater head was lowered within the 3 years due to the installation of the system. A calibrated model was applied to predict the future conditions of groundwater levels and suggest proper designs. Groundwater level drawdowns were predicted at approximately 1.3 and 1.5 m for August 2018 and August 2025, respectively. The results also revealed that with the installation of additional parallel interceptor drainage at a distance of 1000 m from the existing drainage, the groundwater table could be lowered in a large area of the plain. Copyright © 2016 John Wiley & Sons, Ltd.

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Implementation of a 3-D groundwater flow model in a semi-arid region using MODFLOW and GIS tools: The Zéramdine–Béni Hassen Miocene aquifer system (east-central Tunisia)

Cited by 49 publications

References 13 publications

Numerical Simulation of Groundwater Flow in a River Valley Basin in Jilin Urban Area, China

Numerical Simulation of Groundwater Flow in a River Valley Basin in Jilin Urban Area, China

Potential impacts of urban area expansion on groundwater level in the Gaza Strip: a spatial-temporal assessment

Interceptor Drainage Modelling to Manage High Groundwater Table on the Abyek Plain, Iran

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