Time-Lapse Electrical Resistivity Tomography (TL-ERT) for Landslide Monitoring: Recent Advances and Future Directions

To date, there is a growing interest for challenging applications of time-lapse electrical resistivity tomography (TL-ERT) in Earth sciences. Tomographic algorithms for resistivity data inversion and innovative technologies for sensor networks have rapidly transformed the TL-ERT method in a powerful...

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Main Authors: Vincenzo Lapenna, Angela Perrone
Format: Article
Language:English
Published: MDPI AG 2022-01-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/12/3/1425
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author Vincenzo Lapenna
Angela Perrone
author_facet Vincenzo Lapenna
Angela Perrone
author_sort Vincenzo Lapenna
collection DOAJ
description To date, there is a growing interest for challenging applications of time-lapse electrical resistivity tomography (TL-ERT) in Earth sciences. Tomographic algorithms for resistivity data inversion and innovative technologies for sensor networks have rapidly transformed the TL-ERT method in a powerful tool for the geophysical time-lapse imaging. In this paper, we focus our attention on the application of this method in landslide monitoring. Firstly, an overview of recent methodological advances in TL-ERT data processing and inversion is presented. In a second step, a critical analysis of the main results obtained in different field experiments and lab-scale simulations are discussed. The TL-ERT appears to be a robust and cost-effective method for mapping the water-saturated zones, and for the identification of the groundwater preferential pathways in landslide bodies. Furthermore, it can make a valuable contribution to following time-dependent changes in top-soil moisture, and the spatio-temporal dynamics of wetting fronts during extreme rainfall events. The critical review emphasizes the limits and the advantages of this geophysical method and discloses a way to identify future research activities to improve the use of the TL-ERT method in landslide monitoring.
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spelling doaj.art-35d04b9c872646e68e4fb4c71551fa942023-11-23T15:57:26ZengMDPI AGApplied Sciences2076-34172022-01-01123142510.3390/app12031425Time-Lapse Electrical Resistivity Tomography (TL-ERT) for Landslide Monitoring: Recent Advances and Future DirectionsVincenzo Lapenna0Angela Perrone1Institute of Methodologies for Environmental Analysis, National Research Council of Italy (CNR-IMAA), C.da S.Loja, I-85050 Tito, PZ, ItalyInstitute of Methodologies for Environmental Analysis, National Research Council of Italy (CNR-IMAA), C.da S.Loja, I-85050 Tito, PZ, ItalyTo date, there is a growing interest for challenging applications of time-lapse electrical resistivity tomography (TL-ERT) in Earth sciences. Tomographic algorithms for resistivity data inversion and innovative technologies for sensor networks have rapidly transformed the TL-ERT method in a powerful tool for the geophysical time-lapse imaging. In this paper, we focus our attention on the application of this method in landslide monitoring. Firstly, an overview of recent methodological advances in TL-ERT data processing and inversion is presented. In a second step, a critical analysis of the main results obtained in different field experiments and lab-scale simulations are discussed. The TL-ERT appears to be a robust and cost-effective method for mapping the water-saturated zones, and for the identification of the groundwater preferential pathways in landslide bodies. Furthermore, it can make a valuable contribution to following time-dependent changes in top-soil moisture, and the spatio-temporal dynamics of wetting fronts during extreme rainfall events. The critical review emphasizes the limits and the advantages of this geophysical method and discloses a way to identify future research activities to improve the use of the TL-ERT method in landslide monitoring.https://www.mdpi.com/2076-3417/12/3/1425time-lapse geophysical imagingelectrical resistivity tomographylandslides
spellingShingle Vincenzo Lapenna
Angela Perrone
Time-Lapse Electrical Resistivity Tomography (TL-ERT) for Landslide Monitoring: Recent Advances and Future Directions
Applied Sciences
time-lapse geophysical imaging
electrical resistivity tomography
landslides
title Time-Lapse Electrical Resistivity Tomography (TL-ERT) for Landslide Monitoring: Recent Advances and Future Directions
title_full Time-Lapse Electrical Resistivity Tomography (TL-ERT) for Landslide Monitoring: Recent Advances and Future Directions
title_fullStr Time-Lapse Electrical Resistivity Tomography (TL-ERT) for Landslide Monitoring: Recent Advances and Future Directions
title_full_unstemmed Time-Lapse Electrical Resistivity Tomography (TL-ERT) for Landslide Monitoring: Recent Advances and Future Directions
title_short Time-Lapse Electrical Resistivity Tomography (TL-ERT) for Landslide Monitoring: Recent Advances and Future Directions
title_sort time lapse electrical resistivity tomography tl ert for landslide monitoring recent advances and future directions
topic time-lapse geophysical imaging
electrical resistivity tomography
landslides
url https://www.mdpi.com/2076-3417/12/3/1425
work_keys_str_mv AT vincenzolapenna timelapseelectricalresistivitytomographytlertforlandslidemonitoringrecentadvancesandfuturedirections
AT angelaperrone timelapseelectricalresistivitytomographytlertforlandslidemonitoringrecentadvancesandfuturedirections