We study the gas flow processes in ultra-tight porous media in which the matrix pore network
is composed of nanometre-to micrometre-size pores. We formulate a pressure-dependent …

Calibration of a numerical process model against laboratory or field data is often referred to
as “inverse modeling.” As the numerical simulation models become more complex, the …

1.1 About This Manual iTOUGH2 is a program for parameter estimation, sensitivity analysis,
and uncertainty propagation analysis. It is based on the TOUGH2 simulator for …

Abstract iTOUGH2 is a simulation-optimization framework for the TOUGH suite of
nonisothermal multiphase flow models and related simulators of geophysical, geochemical …

This chapter describes the process of parameter estimation. It discusses weighted least‐
squares and maximum‐likelihood estimators, minimization techniques, significance of …

A parameter estimation method is developed for the determination of unsaturated soil
hydraulic properties from evaporation experiments under laboratory conditions. Variables …

The PEST protocol has been implemented into the iTOUGH2 code, allowing the user to link
any simulation program (with ASCII-based inputs and outputs) to iTOUGH2's sensitivity …

This paper is devoted to the identification of Bayesian posteriors for the random coefficients
of the high-dimension polynomial chaos expansions of non-Gaussian tensor-valued random …

Knowledge of soil hydraulic and thermal properties is essential for studies involving the
combined effects of soil temperature and water input on water flow and redistribution …

Inverse methods are increasingly used to estimate the hydraulic properties of unsaturated
soils. The method generally uses a weighted least‐squares approach in which numerically …