Correlating Groundwater Level Fluctuations of a Fractured Confined Aquifer With Relative Variations in Seismic Velocity: A Way to Estimate the Groundwater Storage
Abstract Analysis of ambient seismic noise is of increasing interest for its potential to monitor aquifers, seismic wave velocity being sensitive to fluctuations of the water table or to pore pressure variations. The correlation with groundwater pressure variations in confined aquifers, which are of...
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| Format: | Article |
| Language: | English |
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Wiley
2025-04-01
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| Series: | Geophysical Research Letters |
| Online Access: | https://doi.org/10.1029/2024GL110808 |
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| author | B. Vittecoq A. Burtin J. Fortin |
| author_facet | B. Vittecoq A. Burtin J. Fortin |
| author_sort | B. Vittecoq |
| collection | DOAJ |
| description | Abstract Analysis of ambient seismic noise is of increasing interest for its potential to monitor aquifers, seismic wave velocity being sensitive to fluctuations of the water table or to pore pressure variations. The correlation with groundwater pressure variations in confined aquifers, which are often strategic, is an open scientific question, as is the stored groundwater volume. Based on an experimental site equipped with a low‐cost seismometer located close to a borehole in a confined fractured aquifer, we demonstrate that (a) the auto and inter‐components correlation of the time series of the seismometer enables detecting variations in seismic velocities, (b) these changes are negatively correlated with the groundwater pressure variations, and (c) these changes occur above a groundwater pressure threshold related to the fractures' properties. Finally, we propose a method to estimate the storage coefficient's order of magnitude of the confined aquifer using the correlation between dv/v and the groundwater pressure. |
| format | Article |
| id | doaj-art-2e8db1dc891e47d385a3e6ecb5dc9b1c |
| institution | OA Journals |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-2e8db1dc891e47d385a3e6ecb5dc9b1c2025-08-20T01:51:50ZengWileyGeophysical Research Letters0094-82761944-80072025-04-01527n/an/a10.1029/2024GL110808Correlating Groundwater Level Fluctuations of a Fractured Confined Aquifer With Relative Variations in Seismic Velocity: A Way to Estimate the Groundwater StorageB. Vittecoq0A. Burtin1J. Fortin2BRGM Fort‐de‐France MartiniqueUniversité de Paris Cité Institut de Physique du Globe de Paris CNRS Paris FranceLaboratoire de Géologie Ecole Normale Supérieure/CNRS UMR8538 PSL Research University Paris FranceAbstract Analysis of ambient seismic noise is of increasing interest for its potential to monitor aquifers, seismic wave velocity being sensitive to fluctuations of the water table or to pore pressure variations. The correlation with groundwater pressure variations in confined aquifers, which are often strategic, is an open scientific question, as is the stored groundwater volume. Based on an experimental site equipped with a low‐cost seismometer located close to a borehole in a confined fractured aquifer, we demonstrate that (a) the auto and inter‐components correlation of the time series of the seismometer enables detecting variations in seismic velocities, (b) these changes are negatively correlated with the groundwater pressure variations, and (c) these changes occur above a groundwater pressure threshold related to the fractures' properties. Finally, we propose a method to estimate the storage coefficient's order of magnitude of the confined aquifer using the correlation between dv/v and the groundwater pressure.https://doi.org/10.1029/2024GL110808 |
| spellingShingle | B. Vittecoq A. Burtin J. Fortin Correlating Groundwater Level Fluctuations of a Fractured Confined Aquifer With Relative Variations in Seismic Velocity: A Way to Estimate the Groundwater Storage Geophysical Research Letters |
| title | Correlating Groundwater Level Fluctuations of a Fractured Confined Aquifer With Relative Variations in Seismic Velocity: A Way to Estimate the Groundwater Storage |
| title_full | Correlating Groundwater Level Fluctuations of a Fractured Confined Aquifer With Relative Variations in Seismic Velocity: A Way to Estimate the Groundwater Storage |
| title_fullStr | Correlating Groundwater Level Fluctuations of a Fractured Confined Aquifer With Relative Variations in Seismic Velocity: A Way to Estimate the Groundwater Storage |
| title_full_unstemmed | Correlating Groundwater Level Fluctuations of a Fractured Confined Aquifer With Relative Variations in Seismic Velocity: A Way to Estimate the Groundwater Storage |
| title_short | Correlating Groundwater Level Fluctuations of a Fractured Confined Aquifer With Relative Variations in Seismic Velocity: A Way to Estimate the Groundwater Storage |
| title_sort | correlating groundwater level fluctuations of a fractured confined aquifer with relative variations in seismic velocity a way to estimate the groundwater storage |
| url | https://doi.org/10.1029/2024GL110808 |
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