Geoelectric Characterization of Hyporheic Exchange Flow in the Bedrock‐Lined Streambed of East Fork Poplar Creek, Oak Ridge, Tennessee

Ikard, Scott J.; Carroll, Kenneth C.; Rucker, Dale F.; Adams, Ryan F.; Brooks, Scott C.

doi:10.1029/2022gl102616

Geophysical Research Letters

2023

DOI: 10.1029/2022gl102616

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Geoelectric Characterization of Hyporheic Exchange Flow in the Bedrock‐Lined Streambed of East Fork Poplar Creek, Oak Ridge, Tennessee

Scott J. Ikard

Kenneth C. Carroll

Dale F. Rucker

et al.

Abstract: Bedrock rivers present a critical knowledge gap with respect to surface-water (SW) and groundwater (GW) exchange processes and hyporheic zone function (

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2024

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Cited by 3 publications

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“…The findings underscore the importance of environmental remediation projects and groundwater management. The lack of comprehensive knowledge about the subsurface composition exacerbates these risks, making it imperative to conduct a geoelectrical investigation to uncover vital insights into the soil structure and composition [11] [9]. While existing studies may offer valuable insights into geoelectrical methods and soil characterization techniques, they often lack the specificity required to address the unique challenges posed by cliff environments in this particular region [12] [13] [14].…”

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confidence: 99%

Unveiling Subsurface Characteristics of Cliff Land in Sibang, Bali Through Geoelectric Investigation

Diana,

Mareta

2024

U Karst

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The unique geological formations and environmental dynamics of cliffs underscore the significance of comprehending soil composition and structural integrity for diverse applications, such as infrastructure development and environmental conservation. Geoelectrical needs to be done because the underground geological conditions of the cliff must be researched and assessed first before construction is carried out so that construction failure does not occur. This research aims to reveal the subsurface characteristics of cliff soil in Sibang, Bali through geoelectrical investigation. This research was conducted by evaluating the soil condition in the field using the geoelectric resistivity method to the ability of a material to inhibit the flow of electric current and geological regional theories. At points BL-01 and BL-04, there is a significant potential risk of landslides due to the thick layer of breccia, especially during high rainfall or additional loads in the area. Point BL-02 also has a potential risk of landslides due to the thick layer of basalt and wet sand. Meanwhile, points BL-03 and BL-05 are more ideal locations for construction because they consist of relatively stable hard rock. Point BL-06 outside the development zone has layers of gravel, weathered tuffa and andesite which could be considered for future development. Thus, a deep understanding of the geological characteristics of each point is important to manage risks and ensure the safety and sustainability of construction projects in that area.

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confidence: 99%

Unveiling Subsurface Characteristics of Cliff Land in Sibang, Bali Through Geoelectric Investigation

Diana,

Mareta

2024

U Karst

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Fractal study of electrical conductivity and streaming potential in rough fractured porous media

Yang,

Xu,

Zheng

2024

European Journal of Mechanics - B/Fluids

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Characterization and Quantification of Dam Seepage Based on Resistivity and Geological Information

Jian,

Lu,

Guo

et al. 2024

Water

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Dam seepage significantly poses a serious threat to both the reservoir safety and the ecological health of the surrounding area. Characterizing and quantifying seepage zones is essential for effective risk mitigation and reinforcement measures. In this study, Electrical Resistivity Tomography (ERT) was applied to detect seepage on a reservoir dam. The ERT survey included three survey lines along the dam. The results indicated low resistivity in seepage zones, showing a distribution extending to the deep section in the middle of the dam and shallow section on both sides of the dam. The reservoir water came out to the ground surface in the downstream from seepage zones. Five seepage models were constructed to quantify seepage based on geological information. The models were further modeled based on the ERT results. Simulated results revealed the annual seepage of the reservoir is 78,880.16 m3. However, 75.5% of the total seepage is contributed by a region representing 50% of the dam. This concentrated seepage should draw the attention of future safety monitoring and reinforcement efforts. This study combines geophysics, geological, and numerical simulation to quantify dam seepage. This allows for the development of more scientifically sound solutions for preventing seepage and improving drainage ability in reservoir dams.

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Geoelectric Characterization of Hyporheic Exchange Flow in the Bedrock‐Lined Streambed of East Fork Poplar Creek, Oak Ridge, Tennessee

Abstract: Bedrock rivers present a critical knowledge gap with respect to surface-water (SW) and groundwater (GW) exchange processes and hyporheic zone function (

Cited by 3 publications

References 57 publications

Unveiling Subsurface Characteristics of Cliff Land in Sibang, Bali Through Geoelectric Investigation

Unveiling Subsurface Characteristics of Cliff Land in Sibang, Bali Through Geoelectric Investigation

Fractal study of electrical conductivity and streaming potential in rough fractured porous media

Characterization and Quantification of Dam Seepage Based on Resistivity and Geological Information

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