A Richards’ equation-based model for wave-resolving simulation of variably-saturated beach groundwater flow dynamics

Clément, Jean-Baptiste; Sous, Damien; Bouchette, Frédéric; Golay, Frédéric; Ersoy, Mehmet

doi:10.1016/j.jhydrol.2023.129344

Cited by 8 publications

(3 citation statements)

References 77 publications

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“…The effect of water flow on the riverbed determines the morphodynamics and hydromorphology of riverbeds [6][7][8]. Mathematical modeling of riverbed processes based on self-consistent accounting of water dynamics [1,9] and sediment transport is an effective tool both for the analysis of channel deformations [10][11][12][13][14], and to provide environmental expertise in the design of hydraulic structures, sand extraction and other anthropogenic impacts. The dynamics of suspended sediments is described by the transport equation [10]:…”

Section: Suspended Sediments Mathematical Modelingmentioning

confidence: 99%

EcoGIS-Simulation Software for riverbed sediments modeling

Khrapov,

Agafonnikova,

Potaptseva

et al. 2023

E3S Web Conf.

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The paper describes the EcoGIS-Simulation software and hardware complex for numerical hydrological modeling of river systems. The computing core makes it possible to carry out a non-stationary self-consistent calculation of the dynamics of surface and groundwater, as well as the transfer of entrained and suspended sediments. The main attention is paid to the organization of geoinformation support for such calculations at the stages of preparation of initial data, processing of results and their visualization. EcoGIS-Simulation software is designed to simulate non-stationary self-consistent dynamics of surface and groundwater together with the transport of entrained and suspended sediments. The strong dependence of the nature of sediment transport on the particle size in the conditions of the Medveditsa River in the vicinity of the city of Mikhailovka (Volgograd Region, Russia) is shown.

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Section: Suspended Sediments Mathematical Modelingmentioning

confidence: 99%

EcoGIS-Simulation Software for riverbed sediments modeling

Khrapov,

Agafonnikova,

Potaptseva

et al. 2023

E3S Web Conf.

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“…At present, such methods are mainly divided into theoretical infiltration model and approximate infiltration model 3 , 4 . Among them, the theoretical infiltration model is usually based on the assumption of continuous media to propose partial differential equations (such as Richards equation) to describe the infiltration process of water in soil, and solved by integral transformation or other numerical methods 5 – 8 . The approximate infiltration model is usually based on the principle of water balance and Darcy's law to simplify the calculation process.…”

Section: Introductionmentioning

confidence: 99%

Stability analysis of rainfall-induced landslide considering air resistance delay effect and lateral seepage

Li,

Lin,

Qiang

et al. 2024

Sci Rep

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Accumulation landslides are prone to occur during the continuous infiltration of heavy rainfall, which seriously threatens the lives and property safety of local residents. In this paper, based on the Green-Ampt (GA) infiltration model, a new slope rainfall infiltration function is derived by combining the effect of air resistance and lateral seepage of saturated zone. Considering that when the soil layer continues to infiltrate after the saturation zone is formed, the air involvement cannot be discharged in time, which delays the infiltration process. Therefore, the influence of air resistance factor in soil pores is added. According to the infiltration characteristics of finite long slope, the lateral seepage of saturated zone is introduced, which makes up for the deficiency that GA model is only applicable to infinite long slope. Finally, based on the seepage characteristics of the previous analysis, the overall shear strength criterion is used to evaluate the stability of the slope. The results show that the safety factor decreases slowly with the increase of size and is inversely correlated with the slope angle and initial moisture content. The time of infiltration at the same depth increases with the increase of size and slope angle, and is inversely correlated with the initial moisture content, but is less affected by rainfall intensity. By comparing with the results of experimental data and other methods, the results of the proposed method are more consistent with the experimental results than other methods.

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“…Zhao et al applied the Gompertz growth model to predict the output value of forest products; the relative error was only 0.0082%, and the correlation coefficient reached 0.9992 [34]. The Richards model has been widely used in various fields of forest growth, and it has the advantages of an accurate description of the growth process and the strongest applicability [35]. For example, by taking stand age, site index and stand density index as independent variables, Jiang et al studied the whole stand model of a Chinese fir plantation with variable density based on the Richards model, achieving a high accuracy of 82.48% [36].…”

Section: Introductionmentioning

confidence: 99%

Assessing Forest-Change-Induced Carbon Storage Dynamics by Integrating GF-1 Image and Localized Allometric Growth Equations in Jiangning District, Nanjing, Eastern China (2017–2020)

Liu,

Yang,

et al. 2024

Forests

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Forest and its dynamics are of great significance for accurately estimating regional carbon sequestration, emissions and carbon sink capacity. In this work, an efficient framework that integrates remote sensing, deep learning and statistical modeling was proposed to extract forest change information and then derive forest carbon storage dynamics during the period 2017 to 2020 in Jiangning District, Nanjing, Eastern China. Firstly, the panchromatic band and multi-spectral bands of GF-1 images were fused by using four different methods; Secondly, an improved Mask-RCNN integrated with Swin Transformer was devised to extract forest distribution information in 2020. Finally, by using the substitution strategy of space for time in the 2017 Forest Management and Planning Inventory (FMPI) data, local carbon density allometric growth equations were fitted by coniferous forest and broad-leaved forest types and compared, and the optimal fitting was accordingly determined, followed by the measurements of forest-change-induced carbon storage dynamics. The results indicated that the improved Mask-RCNN synergizing with the Swin Transformer gained an overall accuracy of 93.9% when mapping the local forest types. The carbon storage of forest standing woods was calculated at 1,449,400 tons in 2020, increased by 14.59% relative to that of 2017. This analysis provides a technical reference for monitoring forest change and lays a data foundation for local agencies to formulate forest management policies in the process of achieving dual-carbon goals.

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A Richards’ equation-based model for wave-resolving simulation of variably-saturated beach groundwater flow dynamics

Cited by 8 publications

References 77 publications

EcoGIS-Simulation Software for riverbed sediments modeling

EcoGIS-Simulation Software for riverbed sediments modeling

Stability analysis of rainfall-induced landslide considering air resistance delay effect and lateral seepage

Assessing Forest-Change-Induced Carbon Storage Dynamics by Integrating GF-1 Image and Localized Allometric Growth Equations in Jiangning District, Nanjing, Eastern China (2017–2020)

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