Assessment of Groundwater Recharge Potential Depending on Morphologic Analysis in East of Wasit, Southeastern Iraq

Shamkhi, Mohammed S.

doi:10.46717/igj.54.2d.11ms-2021-10-30

Cited by 3 publications

(1 citation statement)

References 27 publications

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“…Drainage density is the ratio between the total stream length of the watershed and the overall watershed area (Shamkhi, 2021). It has a proportional relationship with flood occurrence; increased drainage density is associated with increased surface overflow and the likelihood of flood events (Allafta and Opp, 2021;Ullah and Zhang, 2020).…”

Section: • Drainage Densitymentioning

confidence: 99%

Flood Susceptibility Mapping Using an Analytic Hierarchy Process Model Based on Remote Sensing and GIS Approaches in Akre District, Kurdistan Region, Iraq

Fatah

Mustafa

Hassan

2022

IGJ

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In recent decades, floods have been the most common, complex, and destructive natural calamities worldwide. Hence, for inclusive flood risk assessment, creating flood susceptibility mapping to demarcate flood-vulnerable zones is fundamental for decision makers. To assess flood-prone locations in the Akre, Iraqi Kurdistan Region, fundamental for susceptibility mapping was undertaken using geographic information systems, remote sensing, and an analytic hierarchy process model. To assess flood susceptibility, the geographic information systems framework used 15 ideal causative factors for flooding: altitude, slope, distance to streams, flow accumulation, drainage density, rainfall, soil type, lithology, curvature, topographic wetness index (TWI), topographic roughness index stream power index, stream transport index, land use/land cover, and normalized difference vegetation index. The factors contributing to flooding were optimally weighted with respect to the proposed model. The final flood susceptibility map was reclassified into five different classes of susceptibility to flooding: very low (16.64% of the study area); low (19.53%); moderate (38.92%); high (17.83%); and very high (7.08%). The area under curve values for the predicted rate and success rate of the AHP model were 0.956 and 0.971, respectively. Therefore, the results were accurate and reliable. The AHP model is a powerful method for fundamental for susceptibility mapping to mitigate the serious impacts of flooding and assist scholars, local governments and policymakers in future master planning.

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Section: • Drainage Densitymentioning

confidence: 99%

Flood Susceptibility Mapping Using an Analytic Hierarchy Process Model Based on Remote Sensing and GIS Approaches in Akre District, Kurdistan Region, Iraq

Fatah

Mustafa

Hassan

2022

IGJ

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Depletion zones of groundwater resources in the Southwest Desert of Iraq

Shlash

Obead

2023

Open Engineering

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Aquifers offer a reliable supply of high-quality water, making groundwater significant in arid and semi-arid regions. Climate change is predicted to result in a decrease in rainfall and an increase in droughts. The prolonged drought severely devastated Iraq and is the main reason for the ongoing increase in groundwater consumption over the last decade. In this study, the stresses and depletion potentials of the Dammam confined aquifer, which extended along the Najaf and Muthanna governorates, are identified and analyzed. By using the Groundwater Modelling System (GMS v10.4) software, a numerical simulation of groundwater flow was used to study the Dammam aquifer system. The upper layer was modeled as unconfined, while the bottom layer was confined. The findings from the steady-state calibration indicate that the hydraulic conductivity (HK) within the study area varies between 1.47 to 20.0 m/day. Additionally, the recharging rate (RH) was estimated to be approximately 1.66 × 10−6 m/day. These parameters were utilized as the initial condition for conducting the transient analysis. Two operating scenarios were employed to perform unsteady simulations. The initial scenario involved the utilization of 89 production wells, while the second scenario included all 139 stand-by production wells, resulting in a total of 228 wells for the operational period from July 2021 to June 2022. The results of the first operation scenario showed that the drawdowns ranged from 0.4 to 5.8 m, whereas the second operation scenario showed that the drawdown increased from 1.0 to 22 m. The depletion rate in the groundwater static heads was measured by the percentage of relative difference. Hence, the depletion rate for the first scenario varied from 4.32 to 33.34%. On the other hand, the second scenario ranged from 7.45 to 33.34%.

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Estimation of Spatial Groundwater Recharge Using WetSpass Model for East Wasit Province, Iraq

AL-Badry

Shamkhi

2021

ejuow

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Groundwater is an important water source, especially in arid and semi-arid areas. Recharge is critical to managing and analyzing groundwater resources despite estimation difficulty due to temporal and spatial change. The study aim is to estimate annual groundwater recharge for the eastern Wasit Province part, Iraq. Where suffers from a surface water shortage due to the region's high elevation above Tigris River water elevation by about 60 m, it is necessary to search for alternative water sources, such as groundwater use. The spatially distributed WetSpass model was used to estimate the annual recharge. The inputs for the model were prepared using the ARC-GIS program, which includes the topography and slope grid, soil texture grid, land use, groundwater level grid, and meteorological data grids for the study area for the period (2014-2019). The result shows that the annual recharge calculated using the WetSpass model (2014-2019) varied of 0 to 65.176 mm/year at an average of 27.117 mm/year, about 10.8%, while the rate of the surface runoff was 5.2% and Evapotranspiration formed 83.33% of the annual rainfall rate of 251.192 mm. The simulation results reveal that the WetSpass model simulates the components of the hydrological water budget correctly. For managing and planning available water resources, a best grasp of the simulation of long-range average geographical distribution around the water balance components is beneficial.

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Assessment of Groundwater Recharge Potential Depending on Morphologic Analysis in East of Wasit, Southeastern Iraq

Cited by 3 publications

References 27 publications

Flood Susceptibility Mapping Using an Analytic Hierarchy Process Model Based on Remote Sensing and GIS Approaches in Akre District, Kurdistan Region, Iraq

Flood Susceptibility Mapping Using an Analytic Hierarchy Process Model Based on Remote Sensing and GIS Approaches in Akre District, Kurdistan Region, Iraq

Depletion zones of groundwater resources in the Southwest Desert of Iraq

Estimation of Spatial Groundwater Recharge Using WetSpass Model for East Wasit Province, Iraq

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