Utilisation des marées atmosphériques pour estimer la conductivité hydraulique des aquifères confinés et semi-confinés

Valois, Rémi; Derode, Benoit; Vouillamoz, Jean-Michel; Valerie Kotchoni, D. O.; Lawson, M. A.; Rau, Gabriel C.

doi:10.1007/s10040-023-02715-5

Hydrogeol J

2023

DOI: 10.1007/s10040-023-02715-5

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Utilisation des marées atmosphériques pour estimer la conductivité hydraulique des aquifères confinés et semi-confinés

Rémi Valois,

Benoit Derode,

Jean-Michel Vouillamoz

et al.

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2024

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Technical note: Analytical solution for well water response to Earth tides in leaky aquifers with storage and compressibility in the aquitard

Valois,

Rivière,

Vouillamoz

et al. 2024

Hydrol. Earth Syst. Sci.

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Abstract. In recent years, there has been a growing interest in utilizing the groundwater response to Earth tides as a means of estimating subsurface properties. However, existing analytical models have been insufficient in accurately capturing realistic physical conditions. This study presents a new analytical solution to calculate the groundwater response to Earth tide strains, including storage and compressibility of the aquitard, borehole storage, and skin effects. We investigate the effects of aquifer and aquitard parameters on the well water response to Earth tides at two dominant frequencies (O1 and M2) and compare our results with hydraulic parameters obtained from a pumping test. Inversion of the six hydro-geomechanical parameters from amplitude response and phase shift in both semi-diurnal and diurnal tides provides relevant information about aquifer transmissivity, storativity, well skin effect, aquitard hydraulic conductivity, and diffusivity. The new model is able to reproduce previously unexplained observations of the amplitude and frequency responses. We emphasize the usefulness in developing a relevant methodology to use the groundwater response to natural drivers in order to characterize hydrogeological systems.

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Technical note: Analytical solution for well water response to Earth tides in leaky aquifers with storage and compressibility in the aquitard

Valois,

Rivière,

Vouillamoz

et al. 2024

Hydrol. Earth Syst. Sci.

Self Cite

View full text Add to dashboard Cite

show abstract

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Utilisation des marées atmosphériques pour estimer la conductivité hydraulique des aquifères confinés et semi-confinés

Cited by 1 publication

References 47 publications

Technical note: Analytical solution for well water response to Earth tides in leaky aquifers with storage and compressibility in the aquitard

Technical note: Analytical solution for well water response to Earth tides in leaky aquifers with storage and compressibility in the aquitard

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