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Bayesian joint inversion of surface nuclear magnetic resonance and transient electromagnetic data for groundwater investigation in the Beishan area, Inner Mongolia, China
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Bayesian joint inversion of surface nuclear magnetic resonance and transient electromagnetic data for groundwater investigation in the Beishan area, Inner Mongolia, China
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Journal Article
Bayesian joint inversion of surface nuclear magnetic resonance and transient electromagnetic data for groundwater investigation in the Beishan area, Inner Mongolia, China
2025
Overview
Water resources underpin human society and economic growth, yet freshwater is unevenly distributed, leaving arid regions severely water-stressed. The Beishan mining district in Inner Mongolia exemplifies this challenge: despite abundant minerals, it lacks surface water and depends almost entirely on groundwater. To improve exploration in such complex settings, we propose a Bayesian joint inversion that leverages the complementary sensitivities of Surface Nuclear Magnetic Resonance (SNMR) and Transient Electromagnetic (TEM) data within a probabilistic framework. Using a transdimensional Markov Chain Monte Carlo (MCMC) algorithm, the method adaptively balances data weighting and model complexity. Tests on synthetic and field datasets show that combining SNMR’s direct sensitivity to water content with TEM’s high-resolution resistivity imaging enhances aquifer detection across depths and enables quantitative uncertainty assessment. Applied in Beishan, the approach delineates promising aquifers, with results confirmed by drilling, offering a robust basis for groundwater exploration and sustainable management in arid regions.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
Subject
