Work

Unsupervised data selection for focused time-lapse inversion in electrical resistivity tomography monitoring

Year: 2026

Type: article

Abstract: ABSTRACT Time-lapse electrical resistivity tomography (TLERT) is a popular technique to monitor subsurface processes. Inversions and interpretation often remain challenging because of noisy data and the superposition of several processes influencing the results. To improve TLERT imaging, clustering of data time series was applied prior to the inversion process. Inversion was performed only for a subset of data points displaying some interesting temporal variations. This approach allows us to reduce data misfit within the data subset and successfully isolate the main processes from other processes taking place along the measurement profile. This opens new perspectives for the processing of TLERT data and the monitoring of subsurface processes.

Source: Geophysics

DOI: 10.1190/geo-2025-0405

Authors: Thomas Hermans, Arne Maene, Corentin Caudron, Lore Vanhooren

Language: English

Topic: Geophysical and Geoelectrical Methods

Subfield: Geophysics

Field: Earth and Planetary Sciences

Domain: Physical Sciences

Open Access status: green

Funder: Fonds Wetenschappelijk Onderzoek

Award: Can ERT reveal the dynamics of volcanic hydrothermal systems? (ERupT)

OpenAlex ID: W7127367165

FWCI: 3.947

Cites: 15

Cited by: 1

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