Results 11 to 20 of about 6,130,358 (229)

Improving electrical resistivity tomography interpretation with Gray Level Co-Occurrence Matrix textural attributes [PDF]

open access: yesScientific Reports
Electrical resistivity tomography (ERT) provides valuable subsurface structural information but often relies on inverted resistivity thresholds for interpretation. Inversion inherently produces smooth boundaries that can lead to interpretation ambiguity,
John McKnight   +2 more
doaj   +2 more sources

Improved hydrogeophysical characterization using joint inversion of cross-hole electrical resistance and ground-penetrating radar traveltime data. [PDF]

open access: yes, 2006
Appropriate regularizations of geophysical inverse problems and joint inversion of different data types improve geophysical models and increase their usefulness in hydrogeological studies.
Revil, Andre   +4 more
core   +5 more sources

Application of Geo-electrical Methods for Estimating Water Infiltration in Soils [PDF]

open access: yesNature Environment and Pollution Technology, 2022
In this study, an alternative approach was applied for the characterization of the subsurface geological conditions to estimate the hydrological parameters in the absence of subsurface soil data.
Kaizar Hossain, Mohd Talha Anees, Ahmad Farid Bin Abu Baker, Mohammad Muqtada Ali Khan, Amin E. Khalil, K. S. Ishola, Abdullah K., Mohd Nawawi M. N. and Mohd. Omar A. K.
doaj   +1 more source

Electrical Resistivity Tomography (ERT) Monitoring for Landslides: Case Study in the Lantai Area, Yilan Taiping Mountain, Northeast Taiwan

open access: yesFrontiers in Earth Science, 2021
Water saturation in the bedrock or colluvium is highly related to most landslide hazards, and rainfall is likely a crucial factor. The dynamic processes of onsite rock/soil mechanics could be revealed via monitoring using the electrical resistivity ...
Wu-Nan Tsai   +9 more
doaj   +1 more source

Contribution of Python-based BERT software for landslide monitoring using Electrical Resistivity Tomography datasets. A case study in Tghat-Fez (Morocco)

open access: yesData in Brief, 2023
The electrical resistivity tomography (ERT) technique was conducted for the geophysical survey of a landslide on the southern slope of Jbel Tghat, north of the city of Fez, Morocco. Nine electrical resistivity tomography profiles were implemented to: (a)
Oussama Jabrane   +5 more
doaj   +1 more source

3D MODEL OF LIMESTONE INCLUSIONS IN MARITSA IZTOK MINE BASED ON ELECTRICAL RESISTIVITY TOMOGRAPHY [PDF]

open access: yesActa Geobalcanica, 2017
The 2D electrical resistivity tomography method (ERT) is a technique that can detect layers and geological features by exploiting resistivity contrasts between different layers using electrical current.
Maya Grigorova, Ivaylo Koprev
doaj   +1 more source

A flowmeter for measuring the dispersed phase velocity in multiphase flow with non-uniform velocity profile [PDF]

open access: yes, 2008
This study aims to introduce a new technique to measure the velocity distribution of the dispersed component of a vertical, upward, water continuous two-phase pipe flow. Here, it is proposed that measurements of the variation in the local conductance
Al-Hinai, Sulaiyam, Lucas, Gary
core   +4 more sources

Shallow Permafrost at the Crystal Site of Peaceful Underground Nuclear Explosion (Yakutia, Russia): Evidence from Electrical Resistivity Tomography

open access: yesEnergies, 2022
The site where a peaceful underground nuclear explosion, Crystal, was detonated in 1974, at a depth of 98 m in perennially frozen Cambrian limestones, was studied by electrical resistivity tomography (ERT) in 2019.
Svetlana Artamonova   +4 more
doaj   +1 more source

Integrating Deep Learning and Deterministic Inversion for Enhancing Fault Detection in Electrical Resistivity Surveys

open access: yesApplied Sciences, 2023
Clays in fault zones have low electrical resistivity, making electrical resistivity tomography (ERT) effective for fault investigations. However, traditional ERT inversion methods struggle to find a unique solution and produce unstable results owing to ...
Shinhye Kong   +4 more
doaj   +1 more source

Removing the effects of temperature on electrical resistivity tomography data collected in partially frozen ground: Limitations and considerations for field applications

open access: yesVadose Zone Journal, 2021
Time‐lapse electrical resistivity tomography (ERT) can be used to image a wide variety of subsurface processes. It is often necessary to remove the effects of seasonal near‐surface temperature variability in order to interpret the signal of interest ...
Teddi Herring   +2 more
doaj   +1 more source

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