Groundwater Hydrological Model Simulation

Salvo, Cristina Di

doi:10.3390/w15040822

Cited by 3 publications

(3 citation statements)

References 12 publications

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“…Modified-DRASTIC-AHP is suggested as a convincing alternative, involving the assignment of weights based on experience to develop a hierarchy of indicators [78,83]. In analytical methods, simplifying factors, such as constant hydraulic conductivity, transmissivity, and uniform aquifer thickness, also increase errors, especially in estimating climate change and its implications using models [84]. Most people agree that no single approach is better than another or that they should be used exclusively.…”

Section: Spatial and Temporal Consideration And Assumptions In Modell...mentioning

confidence: 99%

A Critical Review of Climate Change Impacts on Groundwater Resources: A Focus on the Current Status, Future Possibilities, and Role of Simulation Models

Davamani,

John,

Poornachandhra

et al. 2024

Atmosphere

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The Earth’s water resources, totalling 1.386 billion cubic kilometres, predominantly consist of saltwater in oceans. Groundwater plays a pivotal role, with 99% of usable freshwater supporting 1.5–3 billion people as a drinking water source and 60–70% for irrigation. Climate change, with temperature increases and altered precipitation patterns, directly impacts groundwater systems, affecting recharge, discharge, and temperature. Hydrological models are crucial for assessing climate change effects on groundwater, aiding in management decisions. Advanced hydrological models, incorporating data assimilation and improved process representation, contribute to understanding complex systems. Recent studies employ numerical models to assess climate change impacts on groundwater recharge that could help in the management of groundwater. Groundwater vulnerability assessments vary with the spatial and temporal considerations, as well as assumptions in modelling groundwater susceptibility. This review assesses the vulnerability of groundwater to climate change and stresses the importance of accurate assessments for sustainable water resource management. It highlights challenges in assumptions related to soil and aquifer properties, multiple stressors, adaptive capacity, topography and groundwater contamination processes, gradual sea level rise scenarios, and realistic representations of the region of study. With the advancements in hydrological modelling, including the integration of uncertainty quantification and remote sensing data, artificial intelligence could assist in the efforts to improve models for assessing the impacts of climate change on hydrological modelling.

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Section: Spatial and Temporal Consideration And Assumptions In Modell...mentioning

confidence: 99%

A Critical Review of Climate Change Impacts on Groundwater Resources: A Focus on the Current Status, Future Possibilities, and Role of Simulation Models

Davamani,

John,

Poornachandhra

et al. 2024

Atmosphere

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“…These studies play a crucial role in informing effective planning strategies, offering insights that contribute to sustainable groundwater use and aiding decision-makers in crafting policies tailored to the specific needs of their respective regions. The collective knowledge generated from these investigations serves as a valuable resource for advancing global best practices in groundwater management and planning [13][14][15][16][17][18][19][20][21][22][23][24]. Moreover, the continuous decline in groundwater levels, attributed to unregulated extraction from both legal and illegal wells, presents a significant challenge in the selected basin.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the Groundwater in Erbil Basin with Support of Visual MODFLOW

Mustafa,

Mawlood

2024

J. Ecol. Eng.

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Groundwater stands as a crucial lifeline in numerous regions across the globe, a significance magnified in water-scarce locales like the Middle East. With depleting water resources exacerbated by global climate change, the imperative for sustainable groundwater management becomes increasingly urgent. This research employs a groundwater flow modeling approach, utilizing Visual MODFLOW (version 4.6.0.166), to scrutinize the present state and future security risks of groundwater resources in the Erbil basin. A distinct aspect of this study involves investigating the interaction between the groundwater aquifers of Greater Zab and Lesser Zab Rivers, along with an exploration of the Erbil aquifers, rivers interaction and recharge zones as a second novelty in this research. The model, calibrated for heterogenous anisotropic unconfined aquifer transient conditions, exhibits a high correlation coefficient (CC) of 0.997 during calibration and 0.985 in the validation process respectively. Findings indicate a general groundwater flow direction from northeast to southwest in the Erbil basin, aligning with surface observations. Despite groundwater aquifers supplying only 55% of the current water demand from the existing wells, the computed balance reveals river leakages of 33,432 m 3 /day into the aquifers. The study forecasts a substantial increase in the dry area of the groundwater aquifer under climate change scenarios, especially when recharge rates diminish. To mitigate these impacts, the study recommends preventing illegal well drilling and implementing continuous monitoring using distributed sensors. The insights gleaned from this research are anticipated to furnish essential information for sustainable planning and effective management of groundwater resources in the Erbil basin and its environs.

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“…This tool is designed to assist hydrogeologists as well as civil engineers in gaining a comprehensive understanding of groundwater systems, as well as in their development, management, and protection. The groundwater algorithms present a simplified representation of complicated aquifer systems, offering valuable information with a reasonable degree of confidence [4][5][6]. Groundwater modelers seek a systematic understanding of the groundwater system, incorporating field investigations and data collection on water levels, aquifer thickness, recharge and discharge rates, and aquifer parameters.…”

Section: Introductionmentioning

confidence: 99%

Navigating the Depths: A Comprehensive Review of Numerical Groundwater Models – Objectives, Advantages & Challenges

Davamani,

Poornachandhra,

John

et al. 2024

Preprint

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The Earth's fresh water resources predominantly is groundwater that is pumped out due to rapid urbanization and aggravated by climate change. Groundwater modeling is a crucial tool for understanding aquifer systems, employing 1D, 2D, and 3D numerical models with distinct applications. One-dimensional models focus on vertical dynamics, examining aquifer properties and simulating vertical contaminant transport. Two-dimensional models extend to regional scales, considering horizontal variations and assessing groundwater-surface water interactions, making them valuable for watershed-scale studies. Three-dimensional models provide a comprehensive representation of hydrogeological systems, capturing intricate flow patterns and aiding site-specific assessments. Comparative analysis reveals model strengths and limitations, emphasizing the importance of calibration for reliable results. Case studies showcase practical applications, such as 1D models in flooding analysis and 2D models for simulating debris flows. Three-dimensional modeling proves essential for understanding complex river-aquifer exchange fluxes. Future directions call for a global groundwater platform to address data variability and technical challenges. Despite substantial investments required, the anticipated returns in scientific advancements, societal benefits, and economic gains are expected to outweigh the initial costs. This review aims in highlighting the significance of advancing all three-dimension groundwater modeling for sustainable water resource management and environmental protection.

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Groundwater Hydrological Model Simulation

Abstract: The management of groundwater resources commonly involves challenges and complexities, which are taken on by researchers using a variety of different strategies [...]

Cited by 3 publications

References 12 publications

A Critical Review of Climate Change Impacts on Groundwater Resources: A Focus on the Current Status, Future Possibilities, and Role of Simulation Models

A Critical Review of Climate Change Impacts on Groundwater Resources: A Focus on the Current Status, Future Possibilities, and Role of Simulation Models

Assessment of the Groundwater in Erbil Basin with Support of Visual MODFLOW

Navigating the Depths: A Comprehensive Review of Numerical Groundwater Models – Objectives, Advantages & Challenges

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