Three‐Dimensional Numerical Modeling of Cryo‐Hydrogeological Processes in a River‐Talik System in a Continuous Permafrost Environment

Liu, Wei-Bo; Fortier, Richard; Molson, John; Lemieux, Jean‐Michel

doi:10.1029/2021wr031630

Cited by 13 publications

(17 citation statements)

References 47 publications

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“…Neural network learning, deep learning and machine learning based on big data have been widely applied to solve the problem of highdimensional uncertain GCE (Mo, 2019;El Bilali et al, 2021). For example, explored the low-temperature hydrogeological process of frozen soil environment through three-dimensional numerical simulation (Liu et al, 2022b). Meanwhile, it is a significant trend that big data models were employed to study the groundwater pollution.…”

Section: New Methods Of Groundwater Chemical Evolutionmentioning

confidence: 99%

Theoretical progress of groundwater chemical evolution based on Tóthian theory: A review

Dong

Gao²

2022

Front. Mar. Sci.

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Tóthian theory refers to the gravity driven groundwater flow system (GFS) theory represented by Tóth, which mainly expounds the driving and distribution law of groundwater. The establishment and development of this theory not only deepened people’s understanding of the driving and distribution law of groundwater, but also greatly promoted the study of groundwater chemical evolution (GCE). Modern GCE research is mostly based on Tóthian theory, characterized by combining with advanced scientific and technological means. Based on the clue of time, this paper is divided into two parts. The first part mainly summarizes the establishment and development of Tóthian theory, including the exploration of groundwater driving force and distribution form by hydrogeologists before Tóthian theory, and the enrichment, development and application of Tóthian theory by geologists after its establishment. The second part mainly combs the main theories and application progress of GCE mechanism research, including the main theories and findings of GCE research before the emergence of Tóthian theory, as well as the research progresses of GCE after the emergence of Tóthian theory. With the flow of groundwater in GFS, groundwater undergoes continuous chemical evolution, which eventually leads to the transformation of hydrochemical types and the gradual increase of total dissolved solids (TDS). The distribution of GFS and GCE complement each other. The distribution of GFS directly determines the model of GCE, and the results of GCE also play a certain role in the distribution of GFS. GCE mainly includes dissolution, precipitation, cation exchange and adsorption, which is affected by the physical and chemical conditions of permeable media, organic matter content and microorganisms. GCE has the characteristics of universality, sustainability and diversity. With the increasing global population and the progresses of science and technology, the impact of human life, industrial and agricultural production on groundwater is deepening. The aggravation of pollution directly changes the chemical compositions of groundwater, resulting in changes of the law of GCE.

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Section: New Methods Of Groundwater Chemical Evolutionmentioning

confidence: 99%

Theoretical progress of groundwater chemical evolution based on Tóthian theory: A review

Dong

Gao²

2022

Front. Mar. Sci.

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“…To quantify the effect of FTE, the numerical simulation code Heatflow (Molson & Frind, 2020) was used to solve the transient groundwater flow, mass transport, and heat transport equations. This software has simulated the terrain-changing thermokarst processes, such as thermokarst pond evolution (Perreault et al, 2021), permafrost mounds (Dagenais et al, 2020), hydrological impacts due to permafrost thaw (Khadhraoui et al, 2021), and river-talik dynamics (Liu et al, 2022) in permafrost zone. The code also takes account of the thermal conductivity, relative permeability, ice-water phase latent heat, sensible heat, heat capacity, unfrozen water content, and parameterized thermal exchange layer, including the heat flux, layer depth, precipitation, and the wet bulb ground surface temperature (Molson & Frind, 2020).…”

Section: Mathematical Model Descriptionmentioning

confidence: 99%

Quantifying the effect of a retrogressive thaw slump on soil freeze–thaw erosion in permafrost regions on the Qinghai–Tibet Plateau, China

et al. 2023

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Thermokarst terrain is developing at an accelerating pace in the ice‐rich permafrost on the Qinghai–Tibet Plateau (QTP), China, and the most dramatic of these terrain‐altering thermokarsts is retrogressive thaw slump (RTS). The freeze–thaw erosion (FTE) impacts are sharply increasing on the Plateau due to RTS, especially as a result of the migration of fine sediments in cold climates, these impacts are still not quantified due to the limitation of hydro‐thermal‐mass transport laws in RTS development. Moreover, it is difficult to assess the impact of RTS on the ecology and environment, especially on soil erosion. This study developed a heat–water‐mass transport coupled model of a RTS in the Beiluhe River Region on the QTP, considering the actual topography, water‐ice phase change, latent heat, and surface heat exchange layer. Based on the observed data of ground temperature, unfrozen water content, and heat flux, the coupled model herein is practicable for presenting the geotemperature regime and groundwater flow in the RTS area, thereby quantifying the ice‐rich permafrost thaw and mass wasting. The results presented indicate that: (1) the seepage velocity of the superficial zone (0–1.5 m depth) is two orders of magnitude higher than that of the permafrost table; (2) the mean ice‐rich permafrost thaw volume was 13.4 m2 from 2016 to 2021; and (3) the cumulative mass transport volume was 22 m2 from July 2020 to September 2021. In addition, the relation between the FTE (shown as the migration of sediments) and the amount of ground ice ablation can be fitted by an exponential equation. This work proposes a reliable method for quantifying the effect of FTE and is helpful to assess the eco‐environmental impacts of RTS.

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“…Simulation of river aufeis formation has been conducted by Hu and Pollard (1997). More recently, Liu et al (2022) used numerical simulation of groundwater flow, heat, and freeze/thaw dynamics to replicate the aufeis formation at Salluit, Nunavik (Quebec), Canada, based on physical conditions determined from geophysical and physical measurements reported in Liu et al (2021).…”

Section: Introductionmentioning

confidence: 99%

Seasonal and decadal subsurface thaw dynamics of an Aufeis feature investigated through numerical simulations

Lainis,

Neupauer,

Koch

et al. 2024

Hydrological Processes

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Aufeis (also known as icings) are large sheet‐like masses of layered ice that form in river channels in arctic environments in the winter as groundwater discharges to the land surface and subsequently freezes. Aufeis are important sources of water for Arctic river ecosystems, bolstering late summer river discharge and providing habitat for caribou escaping insect harassment. The aim of this research is to use numerical simulations to evaluate a conceptual model of subsurface hydrogeothermal conditions that can lead to the formation of aufeis. We used a conceptual model based on geophysical data from the Kuparuk aufeis field on the North Slope of Alaska to develop a two‐dimensional heterogeneous vertical profile model of groundwater flow, heat transport, and freeze/thaw dynamics. Modelling results showed that groundwater can flow to the land surface through subvertical high permeability pathways during winter months when the lower permeability soils near the land surface are frozen. The groundwater discharge can freeze on the surface, contributing to aufeis formation throughout the winter. We performed sensitivity analyses on subsurface properties and surface temperature and found that aufeis formation is most sensitive to the volume of unfrozen water available in the subsurface and the rate at which the subsurface water travels to the land surface. Although a trend of warming air temperatures will lead to a greater volume of unfrozen subsurface water, the aufeis volume can be reduced under warming conditions if the period of time for which air temperatures are below freezing is reduced.

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Three‐Dimensional Numerical Modeling of Cryo‐Hydrogeological Processes in a River‐Talik System in a Continuous Permafrost Environment

Cited by 13 publications

References 47 publications

Theoretical progress of groundwater chemical evolution based on Tóthian theory: A review

Theoretical progress of groundwater chemical evolution based on Tóthian theory: A review

Quantifying the effect of a retrogressive thaw slump on soil freeze–thaw erosion in permafrost regions on the Qinghai–Tibet Plateau, China

Seasonal and decadal subsurface thaw dynamics of an Aufeis feature investigated through numerical simulations

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