Digital twin: Values, challenges and enablers from a modeling perspective

A Rasheed, O San, T Kvamsdal - IEEE access, 2020 - ieeexplore.ieee.org
Digital twin can be defined as a virtual representation of a physical asset enabled through
data and simulators for real-time prediction, optimization, monitoring, controlling, and …

Application of geostatistical methods to groundwater salinization problems: A review

CF Panagiotou, P Kyriakidis, E Tziritis - Journal of Hydrology, 2022 - Elsevier
Groundwater salinization is considered to be one of the most severe and complex
phenomena affecting coastal regions worldwide, occurring when high concentrations of …

Model-data interaction in groundwater studies: Review of methods, applications and future directions

MM Rajabi, B Ataie-Ashtiani, CT Simmons - Journal of hydrology, 2018 - Elsevier
We define model-data interaction (MDI) as a two way process between models and data, in
which on one hand data can serve the modeling purpose by supporting model …

Digital twin: Values, challenges and enablers

A Rasheed, O San, T Kvamsdal - arxiv preprint arxiv:1910.01719, 2019 - arxiv.org
A digital twin can be defined as an adaptive model of a complex physical system. Recent
advances in computational pipelines, multiphysics solvers, artificial intelligence, big data …

A model-independent iterative ensemble smoother for efficient history-matching and uncertainty quantification in very high dimensions

JT White - Environmental Modelling & Software, 2018 - Elsevier
An open-source, scalable and model-independent (non-intrusive) implementation of an
iterative ensemble smoother has been developed to alleviate the computational burden …

Simultaneous identification of a contaminant source and hydraulic conductivity via the restart normal-score ensemble Kalman filter

T Xu, JJ Gómez-Hernández - Advances in Water Resources, 2018 - Elsevier
Detecting where and when a contaminant entered an aquifer from observations
downgradient of the source is a difficult task; this identification becomes more challenging …

Predicting thermal performance of an enhanced geothermal system from tracer tests in a data assimilation framework

H Wu, P Fu, AJ Hawkins, H Tang… - Water Resources …, 2021 - Wiley Online Library
Predicting the thermal performance of an enhanced geothermal system (EGS) requires a
comprehensive characterization of the underlying fracture flow patterns from practically …

A comparison between ES-MDA and restart EnKF for the purpose of the simultaneous identification of a contaminant source and hydraulic conductivity

T Xu, JJ Gómez-Hernández, Z Chen, C Lu - Journal of Hydrology, 2021 - Elsevier
Understanding a contaminant source may help in a better management and risk assessment
of a polluted aquifer. However, contaminant source information may not be available when a …

An adaptive Gaussian process-based iterative ensemble smoother for data assimilation

L Ju, J Zhang, L Meng, L Wu, L Zeng - Advances in water resources, 2018 - Elsevier
Accurate characterization of subsurface hydraulic conductivity is vital for modeling of
subsurface flow and transport. The iterative ensemble smoother (IES) has been proposed to …

An iterative local updating ensemble smoother for estimation and uncertainty assessment of hydrologic model parameters with multimodal distributions

J Zhang, G Lin, W Li, L Wu… - Water Resources Research, 2018 - Wiley Online Library
Ensemble smoother (ES) has been widely used in inverse modeling of hydrologic systems.
However, for problems where the distribution of model parameters is multimodal, using ES …