Effects of hydraulic conductivity on simulating groundwater–land surface interactions over a typical endorheic river basin

Lu, Zheng; Wei, Jiaxing; Yang, Xiaofan

doi:10.1016/j.jhydrol.2024.131542

Journal of Hydrology

2024

DOI: 10.1016/j.jhydrol.2024.131542

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Effects of hydraulic conductivity on simulating groundwater–land surface interactions over a typical endorheic river basin

Zheng Lu,

Jiaxing Wei,

Xiaofan Yang

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Cited by 2 publications

References 123 publications

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A new method for estimating the soil-water diffusivity of unsaturated soils based on the Boltzmann transform and the principle of stationary action

Li,

Niu,

Yao

et al. 2025

Journal of Hydrology

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A new method for estimating the soil-water diffusivity of unsaturated soils based on the Boltzmann transform and the principle of stationary action

Li,

Niu,

Yao

et al. 2025

Journal of Hydrology

View full text Add to dashboard Cite

Inverse Problem for the Moisture Transfer Equation: Development of a Method for Finding the Unknown Parameter and Proof of the Convergence of the Iterative Process

Rysbayeva,

Alpar,

Rysbaiuly

2024

Symmetry

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This study develops a mathematical model for soil moisture diffusion, addressing the inverse problem of determining both the diffusion coefficient and the variation coefficient in a nonlinear moisture transfer equation. The model incorporates specific boundary and initial conditions and utilizes experimentally measured moisture values at a boundary point as input data. An iterative method, based on an explicit gradient scheme, is introduced to estimate the soil parameters. The initial boundary value problem is discretized, leading to a difference analog and the formulation of a conjugate difference problem. Iterative formulas for calculating the unknown parameters are derived, with a priori estimates ensuring the convergence of the iterative process. Additionally, the research establishes the convergence of the numerical model itself, providing a rigorous foundation for the proposed approach. The study also emphasizes symmetry in moisture calculations, ensuring consistency regardless of the calculation direction (from right to left or left to right) and confirming that moisture distribution remains symmetric within specified intervals. This preservation of symmetry enhances the model’s robustness and accuracy in parameter estimation. The numerical simulations were successfully conducted over a 7-day period, demonstrating the model’s reliability. The discrepancy between the numerical predictions and experimental observations remained within the margin of measurement error, confirming the model’s accuracy.

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Effects of hydraulic conductivity on simulating groundwater–land surface interactions over a typical endorheic river basin

Cited by 2 publications

References 123 publications

A new method for estimating the soil-water diffusivity of unsaturated soils based on the Boltzmann transform and the principle of stationary action

A new method for estimating the soil-water diffusivity of unsaturated soils based on the Boltzmann transform and the principle of stationary action

Inverse Problem for the Moisture Transfer Equation: Development of a Method for Finding the Unknown Parameter and Proof of the Convergence of the Iterative Process

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