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Epikarst water detection using integrated geophysical methods
When detecting epikarst water using the self-potential method, the actual location of the anomaly center often deviates from the prospecting result due to the interference of the regional background field, which is comprised of geological noise and artificial electromagnetic fields. Ultimately, this...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Elsevier
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10395017/ https://www.ncbi.nlm.nih.gov/pubmed/37539307 http://dx.doi.org/10.1016/j.heliyon.2023.e17596 |
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author | Du, Chengliang Chen, Yixiang Xie, Hua Lai, Xiaohua Lin, Jing |
author_facet | Du, Chengliang Chen, Yixiang Xie, Hua Lai, Xiaohua Lin, Jing |
author_sort | Du, Chengliang |
collection | PubMed |
description | When detecting epikarst water using the self-potential method, the actual location of the anomaly center often deviates from the prospecting result due to the interference of the regional background field, which is comprised of geological noise and artificial electromagnetic fields. Ultimately, this makes it difficult to locate the detection target accurately. To address the potential offset of the anomaly center location, in this study we introduce the differential filtering method into the data processing procedure. This method has smoothing and low-pass filtering effects, facilitating the extraction of meaningful anomalies. Meanwhile, based on the anomalous features of different physical parameters, we propose an integrated method system based on differentially filtered horizontal self-potential gradient data, the composite profile method, and the high-density electrical method, which can effectively improve the accuracy of anomaly localization. This newly established method system was applied at the Xiaguantun test site in Longzhou County, Chongzuo, Guangxi Province, China, and its effectiveness and feasibility was confirmed. |
format | Online Article Text |
id | pubmed-10395017 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Elsevier |
record_format | MEDLINE/PubMed |
spelling | pubmed-103950172023-08-03 Epikarst water detection using integrated geophysical methods Du, Chengliang Chen, Yixiang Xie, Hua Lai, Xiaohua Lin, Jing Heliyon Research Article When detecting epikarst water using the self-potential method, the actual location of the anomaly center often deviates from the prospecting result due to the interference of the regional background field, which is comprised of geological noise and artificial electromagnetic fields. Ultimately, this makes it difficult to locate the detection target accurately. To address the potential offset of the anomaly center location, in this study we introduce the differential filtering method into the data processing procedure. This method has smoothing and low-pass filtering effects, facilitating the extraction of meaningful anomalies. Meanwhile, based on the anomalous features of different physical parameters, we propose an integrated method system based on differentially filtered horizontal self-potential gradient data, the composite profile method, and the high-density electrical method, which can effectively improve the accuracy of anomaly localization. This newly established method system was applied at the Xiaguantun test site in Longzhou County, Chongzuo, Guangxi Province, China, and its effectiveness and feasibility was confirmed. Elsevier 2023-06-29 /pmc/articles/PMC10395017/ /pubmed/37539307 http://dx.doi.org/10.1016/j.heliyon.2023.e17596 Text en © 2023 The Authors https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Research Article Du, Chengliang Chen, Yixiang Xie, Hua Lai, Xiaohua Lin, Jing Epikarst water detection using integrated geophysical methods |
title | Epikarst water detection using integrated geophysical methods |
title_full | Epikarst water detection using integrated geophysical methods |
title_fullStr | Epikarst water detection using integrated geophysical methods |
title_full_unstemmed | Epikarst water detection using integrated geophysical methods |
title_short | Epikarst water detection using integrated geophysical methods |
title_sort | epikarst water detection using integrated geophysical methods |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10395017/ https://www.ncbi.nlm.nih.gov/pubmed/37539307 http://dx.doi.org/10.1016/j.heliyon.2023.e17596 |
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