The influence of angled survey lines on 2D ERT surveys using the Wenner (α) array with implications for groundwater exploration in Karoo rocks
Sign Up to like & getrecommendations! Published in 2020 at "Journal of African Earth Sciences"
DOI: 10.1016/j.jafrearsci.2020.103875
Abstract: Abstract Two-dimensional (2D) electrical resistivity tomography (ERT) surveying systems typically use standard protocols that assume straight survey lines and collinear electrodes. However, due to the presence of infrastructures and other surface constraints, it is not… read more here.
Keywords: resistivity; survey; apparent resistivity; angled survey ... See more keywords
Modeling for apparent resistivity estimation along direction of electrode array above rebar in electrical resistivity measurement
Sign Up to like & getrecommendations! Published in 2020 at "Journal of building engineering"
DOI: 10.1016/j.jobe.2020.101417
Abstract: Abstract This paper proposes a method for estimating the resistivity of concrete surrounding a specific reinforcing bar using an electrical resistivity method above the steel bar. The previously proposed resistivity estimation model (REM) can estimate… read more here.
Keywords: resistivity; steel; apparent resistivity; bar ... See more keywords
Application of Multitask Learning for 2-D Modeling of Magnetotelluric Surveys: TE Case
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Geoscience and Remote Sensing"
DOI: 10.1109/tgrs.2021.3101119
Abstract: In this article, multitask learning is applied to forward modeling of 2-D magnetotellurics (MT) to predict the apparent resistivity and impedance phase of MT data. Multitask learning can learn multiple objectives simultaneously based on the… read more here.
Keywords: apparent resistivity; multitask; resistivity impedance; multitask learning ... See more keywords
Source-dependent bias of sferics in magnetotelluric responses
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DOI: 10.1190/geo2017-0434.1
Abstract: The predominant signals of audio-frequency magnetotellurics (AMT) are called sferics, and they are generated by global lightning activity. When sferic signals are small or infrequent, measurement noise in electric and magnetic fields causes errors in… read more here.
Keywords: bias; source; apparent resistivity; resistivity phase ... See more keywords
Distribution Characteristics of the Geoelectric Field in Waste Dump Slopes during the Evolution of Instability Sources under Rainfall Conditions
Sign Up to like & getrecommendations! Published in 2023 at "Applied Sciences"
DOI: 10.3390/app13116459
Abstract: To study the evolution of geological hazard sources of waste dump slopes under rainfall conditions, a physical model of a rainfall-affected slope was designed. The apparent resistivity of the slope rock and soil mass at… read more here.
Keywords: sources rainfall; hazard sources; apparent resistivity; slope ... See more keywords