Characterizing Aquifer Properties Through a Sparse‐Grids‐Based Bayesian Framework and InSAR Measurements: A Basin‐Scale Application to Alto Guadalentín, Spain

Abstract Aquifer characterization is essential for predicting aquifer responses and ensuring sustainable groundwater management. In this study we develop a sparse‐grids‐based Bayesian framework to infer the hydraulic conductivity and the soil compressibility of over‐exploited aquifer systems using I...

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Main Authors: Yueting Li, Claudia Zoccarato, Chiara Piazzola, Lorenzo Tamellini, Guadalupe Bru, Carolina Guardiola‐Albert, Pietro Teatini
Format: Article
Language:English
Published: Wiley 2025-08-01
Series:Water Resources Research
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Online Access:https://doi.org/10.1029/2024WR038543
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author Yueting Li
Claudia Zoccarato
Chiara Piazzola
Lorenzo Tamellini
Guadalupe Bru
Carolina Guardiola‐Albert
Pietro Teatini
author_facet Yueting Li
Claudia Zoccarato
Chiara Piazzola
Lorenzo Tamellini
Guadalupe Bru
Carolina Guardiola‐Albert
Pietro Teatini
author_sort Yueting Li
collection DOAJ
description Abstract Aquifer characterization is essential for predicting aquifer responses and ensuring sustainable groundwater management. In this study we develop a sparse‐grids‐based Bayesian framework to infer the hydraulic conductivity and the soil compressibility of over‐exploited aquifer systems using Interferometric Synthetic Aperture Radar (InSAR) ground displacement data sets and piezometric records. The framework integrates a three‐dimensional (3D) coupled variably saturated poromechanical model, accounting for the complex interplay between groundwater depletion and soil deformation through the explicit quantification of the porosity change. The Bayesian inversion approach enables a probabilistic characterization of parameters in the form of a posterior distribution. However, exploring this posterior using Markov chain Monte Carlo (MCMC) methods is computationally prohibitive due to the substantial cost of solving the nonlinear poromechanical forward problem. To overcome this issue, we propose the use of sparse‐grid surrogate models to approximate the forward solutions. The methodology is applied to the Alto Guadalentín basin, Spain, where long‐term aquifer exploitation has led to a lowering of the water table larger than 100 m causing impressive land subsidence, with rates up to 15 cm/yr as evidenced by InSAR. The results demonstrate that integrating InSAR data significantly enhances the characterization of the aquifer properties, with the resulting numerical simulations aligning well with available observations.
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spelling doaj-art-53505e24dbfb432ea7f2e21531c546d62025-08-26T12:02:53ZengWileyWater Resources Research0043-13971944-79732025-08-01618n/an/a10.1029/2024WR038543Characterizing Aquifer Properties Through a Sparse‐Grids‐Based Bayesian Framework and InSAR Measurements: A Basin‐Scale Application to Alto Guadalentín, SpainYueting Li0Claudia Zoccarato1Chiara Piazzola2Lorenzo Tamellini3Guadalupe Bru4Carolina Guardiola‐Albert5Pietro Teatini6Department of Civil Environmental and Architectural Engineering University of Padova Padova ItalyDepartment of Civil Environmental and Architectural Engineering University of Padova Padova ItalyDepartment of Mathematics Technical University of Munich München GermanyConsiglio Nazionale delle Ricerche Istituto di Matematica Applicata e Tecnologie Informatiche “E. Magenes” (CNR‐IMATI) Pavia ItalyGeohazards InSAR Laboratory and Modeling Group (InSARlab) Geological and Mining Institute of Spain (IGME) CSIC Madrid SpainGeohazards InSAR Laboratory and Modeling Group (InSARlab) Geological and Mining Institute of Spain (IGME) CSIC Madrid SpainDepartment of Civil Environmental and Architectural Engineering University of Padova Padova ItalyAbstract Aquifer characterization is essential for predicting aquifer responses and ensuring sustainable groundwater management. In this study we develop a sparse‐grids‐based Bayesian framework to infer the hydraulic conductivity and the soil compressibility of over‐exploited aquifer systems using Interferometric Synthetic Aperture Radar (InSAR) ground displacement data sets and piezometric records. The framework integrates a three‐dimensional (3D) coupled variably saturated poromechanical model, accounting for the complex interplay between groundwater depletion and soil deformation through the explicit quantification of the porosity change. The Bayesian inversion approach enables a probabilistic characterization of parameters in the form of a posterior distribution. However, exploring this posterior using Markov chain Monte Carlo (MCMC) methods is computationally prohibitive due to the substantial cost of solving the nonlinear poromechanical forward problem. To overcome this issue, we propose the use of sparse‐grid surrogate models to approximate the forward solutions. The methodology is applied to the Alto Guadalentín basin, Spain, where long‐term aquifer exploitation has led to a lowering of the water table larger than 100 m causing impressive land subsidence, with rates up to 15 cm/yr as evidenced by InSAR. The results demonstrate that integrating InSAR data significantly enhances the characterization of the aquifer properties, with the resulting numerical simulations aligning well with available observations.https://doi.org/10.1029/2024WR038543poromechanical modelBayesian inversionsparse grid collocationInSAR
spellingShingle Yueting Li
Claudia Zoccarato
Chiara Piazzola
Lorenzo Tamellini
Guadalupe Bru
Carolina Guardiola‐Albert
Pietro Teatini
Characterizing Aquifer Properties Through a Sparse‐Grids‐Based Bayesian Framework and InSAR Measurements: A Basin‐Scale Application to Alto Guadalentín, Spain
Water Resources Research
poromechanical model
Bayesian inversion
sparse grid collocation
InSAR
title Characterizing Aquifer Properties Through a Sparse‐Grids‐Based Bayesian Framework and InSAR Measurements: A Basin‐Scale Application to Alto Guadalentín, Spain
title_full Characterizing Aquifer Properties Through a Sparse‐Grids‐Based Bayesian Framework and InSAR Measurements: A Basin‐Scale Application to Alto Guadalentín, Spain
title_fullStr Characterizing Aquifer Properties Through a Sparse‐Grids‐Based Bayesian Framework and InSAR Measurements: A Basin‐Scale Application to Alto Guadalentín, Spain
title_full_unstemmed Characterizing Aquifer Properties Through a Sparse‐Grids‐Based Bayesian Framework and InSAR Measurements: A Basin‐Scale Application to Alto Guadalentín, Spain
title_short Characterizing Aquifer Properties Through a Sparse‐Grids‐Based Bayesian Framework and InSAR Measurements: A Basin‐Scale Application to Alto Guadalentín, Spain
title_sort characterizing aquifer properties through a sparse grids based bayesian framework and insar measurements a basin scale application to alto guadalentin spain
topic poromechanical model
Bayesian inversion
sparse grid collocation
InSAR
url https://doi.org/10.1029/2024WR038543
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