نتایج جستجو برای: electrical resistivity tomography ert

تعداد نتایج: 380323  

2017
Thomas Lecocq Thierry Camelbeeck

In this work, we present the result of a large-scale geophysical survey that had the objective of identifying the subsurface characteristics and the NE-SW extension of the Hockai Fault Zone: a major NNW-SSE oriented crustal-rooted fault zone crossing the Stavelot-Venn Massif (Eastern Belgium). 31 two-dimensional electrical resistivity tomography (ERT) profiles are presented, resulting in 10,679...

2009
J. A. Huisman J. Sorg H. Vereecken

0022-1694/$ see front matter 2009 Elsevier B.V. A doi:10.1016/j.jhydrol.2009.10.023 * Corresponding author. Tel.: +49 (0)2461 618607. E-mail address: [email protected] (J.A. Huis Coupled hydrogeophysical inversion aims to improve the use of geophysical data for hydrological model parameterization. Several numerical studies have illustrated the feasibility and advantages of a coupled appro...

Journal: :Geosciences 2023

Long-term draining of peatlands results in transformation vegetation and obliteration their morphological features. In many areas, efforts are made to restore the original ecosystems increase water retention potential. Using combined analyses a LiDAR-based digital terrain model (DTM), colour-infrared (CIR) imagery data, ground-penetrating radar (GPR) data electrical resistivity tomography (ERT)...

2014
P. Sava A. Revil

S U M M A R Y We propose a new, simple and efficient method to image electrical resistivity between a set of wells. Our procedure consists of two steps: first, we map the interfaces between various subsurface formations using seismoelectric conversions; second, we derive the formation resistivity using image-guided cross-well electric tomography. In the first step, we focus seismic energy at a ...

Journal: :Journal of Geophysics and Engineering 2021

Abstract This study aims for the protection of a crude-oil pipeline, buried at shallow depth, against probable environmental hazard and pilferage. Both surface borehole geophysical techniques such as electrical resistivity tomography (ERT), ground penetrating radar (GPR), seismic refraction (SRT), cross-hole (CST) profiling (CSP) were used to map vulnerable zones. Data acquired using ERT, GPR S...

Journal: :Geosciences 2022

Knowledge of permafrost structure, with accumulations free natural gas and hydrates, is indispensable for coping spontaneous emission other problems related to exploration production drilling in Arctic petroleum provinces. The existing geophysical methods have different potentialities imaging the base geometry, vertical fluid conduits (permeable zones), taliks, pockets, hydrate continental area...

Journal: :Hydrogeology Journal 2023

Abstract Electrical resistivity tomography (ERT) is a geophysical method used to create an image of the subsurface due its sensitivity porosity, water saturation, and pore fluid salinity. This has been widely applied in investigation mineral groundwater resources, as well archaeological, environmental, engineering studies. The prediction properties, such electrical conductivity, from measured E...

Journal: :NRIAG Journal of Astronomy and Geophysics 2022

Accurate information about soil properties is required in plant growth and yield. Hence, the rising knowledge preservation of favourable basically driven by its vital role agricultural crop productivity. Electrical Resistivity Tomography (ERT) GIS were used for site selection, suitability use topographical effect on distribution Ambrose Alli University. Twelve traverses conducted across study a...

Journal: :Hydrological Processes 2022

In order to advance methodologies used in the investigation of Hyporheic Zone (HZ) mixing processes, this article combines experimental and modelling tools follow a tracer injected into river infiltrating HZ. A highly concentrated sodium chloride solution was river; (i) conductivity, (ii) riverbed resistivity by Electrical Resistivity Tomography (ERT) (iii) vertically distributed concentrations...

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