Characterization of basin-scale aquifer heterogeneity using transient hydraulic tomography with aquifer responses induced by groundwater exploitation reduction

Geophysical Research Letters

Liu

et al. 2022

Self Cite

Knowledge of detailed spatial distributions of geological structures is imperative to understanding the Earth's subsurface processes and exploring natural resources. Over the past decades, electrical magnetic (EM) surveys have been developed based on airborne, controlled-source, or natural-source methods (e.g., Magnetotellurics (MT) and Audio-frequency MT (AMT)). They have been valuable tools for studying hydrogeological features such as wetlands (

Section: Methodsmentioning

confidence: 99%

Characterize Basin‐Scale Subsurface Using Rocket‐Triggered Lightning

Wang

Geophysical Research Letters

Liu

et al. 2022

Self Cite

“…The robustness of HT has been tested and validated in laboratory sandbox experiments (Berg & Illman, 2012;Jiang et al, 2021Jiang et al, , 2022Luo et al, 2017;Sun et al, 2013;Zhao et al, 2016Zhao et al, , 2022 and field-scale experiments (Fischer et al, 2020;Liu, Yeh, Wang, Hao, et al, 2020;Luo et al, 2022;Wang et al, 2021;Zha et al, 2015Zha et al, , 2019Zhao & Illman, 2018, and many others). More recently, Daranond et al (2020) and Liu, Yeh, Wang, Song, et al (2020) applied the HT approach to detect the shape of a basin and boundary conditions.…”

Section: Hou Et Almentioning

confidence: 99%

A Short‐Term Pumping Strategy for Hydraulic Tomography Based on the Successive Linear Estimator

Hou

Water Resources Research

et al. 2023

“…As a result, the groundwater rebound and changes in flow fields are anticipated. This response is an excellent opportunity to estimate the NCP's hydraulic heterogeneity by utilizing the aquifer signals with operational changes of existing wells as a basin-scale HT (F. Liu et al, 2020).…”

Section: Forward Modeling Of the Reference Groundwater Basinmentioning

confidence: 99%

“…For example, unknown boundary conditions could lead to non‐unique estimated parameters and the flow fields (Irsa & Zhang, 2012). As such, accurate inverse modeling has long been a challenge in studying groundwater processes (Carrera & Neuman, 1986; Dafflon et al, 2011; F. Liu et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Potential of Hydraulic Tomography in Identifying Boundary Conditions of Groundwater Basins

Liu

Water Resources Research

Wang

et al. 2020

Self Cite

This study investigates the potential of hydraulic tomography (HT) in identifying the boundary conditions of groundwater basins using numerical experiments. The experiment mimics the scenario of groundwater exploitation reduction in a pilot area of groundwater overexploitation control in the North China Plain. In this study, we propose an approach that integrates the HT concept and readily available groundwater monitoring data to identify the constant head and impermeable boundaries by mapping anomalously high-and low-permeability zones from HT surveys in a large-scale domain that encompasses the true groundwater basin. The resulting boundaries and conditions were then used in inversion of steady-state and transient-state simultaneous pumping tests and HT surveys of heterogeneity within the groundwater basin. The inversion results demonstrated significant advantages of HT surveys over multiple simultaneous pumping tests to identify boundary conditions and heterogeneity in the groundwater basin. Moreover, steady HT inversion outperforms transient HT inversion in capturing the true boundary conditions, leading to the better T estimates from steady HT inversion than those from transient HT inversion. Additionally, the study shows that accurate geological zonation information can significantly improve HT parameter estimations.