Advances in Water Resources最新文献

{"title":"HydroStartML: A combined machine learning and physics-based approach to reduce hydrological model spin-up time","authors":"Louisa Pawusch ,&nbsp;Stefania Scheurer ,&nbsp;Wolfgang Nowak ,&nbsp;Reed M. Maxwell","doi":"10.1016/j.advwatres.2025.105124","DOIUrl":"10.1016/j.advwatres.2025.105124","url":null,"abstract":"<div><div>Finding the initial depth-to-water table (DTWT) configuration of a catchment is a critical challenge when simulating the hydrological cycle with integrated models, significantly impacting simulation outcomes. Traditionally, this involves iterative spin-up computations, where the model runs under constant atmospheric settings until steady-state is achieved. These so-called model spin-ups are computationally expensive, often requiring many years of simulated time, particularly when the initial DTWT configuration is far from steady state.</div><div>To accelerate the model spin-up process we developed <em>HydroStartML</em>, a machine learning emulator trained on steady-state DTWT configurations across the contiguous United States. <em>HydroStartML</em> predicts, based on available data like conductivity and surface slopes, a DTWT configuration of the respective watershed, which can be used as an initial DTWT.</div><div>Our results show that initializing spin-up computations with <em>HydroStartML</em> predictions leads to faster convergence than with other initial configurations like spatially constant DTWTs. The emulator accurately predicts configurations close to steady state, even for terrain configurations not seen in training, and allows especially significant reductions in computational spin-up effort in regions with deep DTWTs. This work opens the door for hybrid approaches that blend machine learning and traditional simulation, enhancing predictive accuracy and efficiency in hydrology for improving water resource management and understanding complex environmental interactions.</div></div>","PeriodicalId":7614,"journal":{"name":"Advances in Water Resources","volume":"206 ","pages":"Article 105124"},"PeriodicalIF":4.2,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Simplified theoretical analyses of lagging Darcy flow and land subsidence in a groundwater pumping system of three horizontal layers: An elastic thin plate approach","authors":"Jun-Hong Lin ,&nbsp;Chih-Yu Liu ,&nbsp;Chien-Chung Ke ,&nbsp;Ying-Fan Lin","doi":"10.1016/j.advwatres.2025.105155","DOIUrl":"10.1016/j.advwatres.2025.105155","url":null,"abstract":"<div><div>Groundwater pumping often produces subsidence that persists after extraction stops, yet classical diffusion or consolidation models struggle to reproduce this lingering response because they omit hydraulic time lags and overburden flexure. This study develops a semi-analytical plate-lag framework for a three-layer aquifer system that couples delayed Darcy flow in the pumped unit with elastic bending of the aquitard. Laplace and Hankel transforms yield fast predictions of drawdown and surface displacement, and a Morris global sensitivity analysis ranks the governing parameters through time. Calibration against constant-rate pumping tests at the San-Tan and Ta-Hsin stations on the Choshui River alluvial fan reproduced observation-well drawdowns and indicated bending-induced displacements at the well below thirty micrometers, which is beneath routine detection thresholds for geodetic networks. A single detectability experiment that reduced transmissivity and aquitard hydraulic conductivity, increased skeletal storage, and softened the plate generated displacements between eight and fifteen millimeters, identifying the stress regimes under which bending-lag effects become observable. The framework thus provides a rapid diagnostic for interpreting pumping tests, screening scenarios where bending-lag contributions are negligible, and prioritizing monitoring strategies in subsidence-prone basins.</div></div>","PeriodicalId":7614,"journal":{"name":"Advances in Water Resources","volume":"206 ","pages":"Article 105155"},"PeriodicalIF":4.2,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145358156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pore-scale imaging of hydrogen and methane storage in fractured aquifer rock: The impact of gas type on relative permeability","authors":"Sojwal Manoorkar ,&nbsp;Gülce Kalyoncu ,&nbsp;Hamdi Omar ,&nbsp;Soetkin Barbaix ,&nbsp;Dominique Ceursters ,&nbsp;Maxime Latinis ,&nbsp;Stefanie Van Offenwert ,&nbsp;Tom Bultreys","doi":"10.1016/j.advwatres.2025.105109","DOIUrl":"10.1016/j.advwatres.2025.105109","url":null,"abstract":"<div><div>Underground hydrogen storage in saline aquifers is a potential solution for seasonal renewable energy storage. Among potential storage sites, facilities used for underground natural gas storage have advantages, including well-characterized cyclical injection-withdrawal behavior and partially reusable infrastructure. However, the differences between hydrogen-brine and natural gas-brine flow, particularly through fractures in the reservoir and the sealing caprock, remain unclear due to the complexity of two-phase flow. Therefore, we investigate fracture relative permeability for hydrogen versus methane (natural gas) and nitrogen (commonly used in laboratories). Steady-state relative permeability experiments were conducted at 10 MPa on fractured carbonate rock from the Loenhout natural gas storage in Belgium, where gas flows through <span><math><mi>μ</mi></math></span>m-to-mm scale fractures. Our results reveal that the hydrogen exhibits similar relative permeability curves to methane, but both are significantly lower than those measured for nitrogen. This implies that nitrogen cannot reliably serve as a proxy for hydrogen at typical reservoir pressures. The low relative permeabilities for hydrogen and methane indicate strong fluid phase interference, which traditional relative permeability models fail to capture. This is supported by our observation of periodic pressure fluctuations associated with intermittent fluid connectivity for hydrogen and methane. In conclusion, our findings suggest that the fundamental flow properties of fractured rocks are complex but relatively similar for hydrogen and natural gas. This is an important insight for predictive modeling of the conversion of Loenhout and similar natural gas storage facilities, which is crucial to evaluate their hydrogen storage efficiency and integrity.</div></div>","PeriodicalId":7614,"journal":{"name":"Advances in Water Resources","volume":"206 ","pages":"Article 105109"},"PeriodicalIF":4.2,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145107274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A semi-analytical solution for seepage field and soil deformation induced by coupled pre-excavation dewatering and groundwater recharge with a suspended waterproof curtain considering delayed phreatic surface response","authors":"Weitao Yang ,&nbsp;Liang Xiao ,&nbsp;Guoxiong Mei","doi":"10.1016/j.advwatres.2025.105111","DOIUrl":"10.1016/j.advwatres.2025.105111","url":null,"abstract":"<div><div>Accurate prediction and effective control of soil deformation induced by pre-excavation dewatering are essential for construction safety in underground space development. However, the coupled effects of suspended waterproof curtains and external groundwater recharge on drawdown and soil deformation in unconfined aquifers remain unclear, particularly considering the delayed response of the phreatic surface. This study develops an improved theoretical model to characterize soil deformation induced by pre-excavation dewatering and external recharge under plane strain conditions, explicitly considering a suspended waterproof curtain and the time-dependent behavior of the water table. A semi-analytical solution is then derived using integral transform techniques and verified through laboratory model tests, degradation solutions, and numerical simulations. Parametric analyses indicate that prolonging time required for the groundwater level within the pit to reach the target value can substantially decrease soil settlement before excavation, which has minimal effect on the final steady-state settlement. Increasing the horizontal distance between recharge wells and the foundation pit mitigates far-field drawdown but may increase soil settlement within the pit, whereas longer well screens enhance phreatic surface recovery near the excavation. Furthermore, increasing the penetration depth of the waterproof curtain and appropriately scheduling the initiation of recharge wells can effectively limit external groundwater inflow, thereby reducing groundwater drawdown and soil settlement outside the foundation pit. Specifically, increasing the penetration depth of the waterproof curtain from 6 m to 12 m reduces internal settlement by 6.7% and external settlement by 77.9%, suggesting a stronger mitigation effect on the external side. These findings not only extend existing theoretical models by explicitly incorporating the coupled effects of suspended waterproof curtains and external recharge wells with delayed phreatic surface response, but also support and broaden prior findings by demonstrating how recharge design parameters and initiation timing critically govern drawdown and soil deformation in deep excavations.</div></div>","PeriodicalId":7614,"journal":{"name":"Advances in Water Resources","volume":"206 ","pages":"Article 105111"},"PeriodicalIF":4.2,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145047329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Scale-adaptive expected mass fraction framework for contaminant dilution mapping in coastal waters","authors":"Morena Galešić Divić ,&nbsp;Vladimir Divić ,&nbsp;Darko Koračin ,&nbsp;Roko Andričević","doi":"10.1016/j.advwatres.2025.105130","DOIUrl":"10.1016/j.advwatres.2025.105130","url":null,"abstract":"<div><div>Coastal waters face continuous threats from inland pollution sources, such as rivers, torrents, and wastewater discharges. These sources pose significant challenges to water quality management. To address the complex dynamics of pollutant transport and dilution in these environments, we introduce a scale-adaptive Expected Mass Fraction (EMF) framework. This framework enables the quantification and mapping of contaminant dilution through a flexible spatial representation, adaptable to arbitrary scales and tailored to specific water quality assessment needs. By combining Lagrangian particle tracking, stochastic ensemble analysis, and spatially integrated concentration statistics, the framework offers a comprehensive tool for evaluating the auto-purification potential of coastal waters. Applied to the Kaštela Bay and Brač Channel in the Eastern Adriatic Sea, the methodology captures the effects of distinct hydrodynamic events – Bora and Sirocco – on pollutant dispersion. Results reveal significant variations in contaminant transport patterns. Bora events exhibit localized surface spreading, while Sirocco events drive extensive horizontal and vertical dispersion. The proposed Auto-Purification Potential (APP) index consolidates these complex dynamics into a region-oriented map, providing a compact and accessible visualization of auto-purification potential. Such a visualization can support public awareness and informed decision-making in coastal water quality management. This study advances the application of EMF concepts to complex hydrodynamic environments, demonstrating its adaptability to diverse spatial scales. The findings provide a foundation for effective pollution monitoring and management strategies in coastal water ecosystems and offer the potential for broader applications in other environmental systems.</div></div>","PeriodicalId":7614,"journal":{"name":"Advances in Water Resources","volume":"206 ","pages":"Article 105130"},"PeriodicalIF":4.2,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145217976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative predictions of solute transport with hydraulic tomography in a laboratory sandbox aquifer: the importance of the injection data","authors":"Huiyang Qiu ,&nbsp;Jie Zhang ,&nbsp;Yuanzheng Zhang ,&nbsp;Yang Song ,&nbsp;Tianning Li ,&nbsp;Bernard Konadu Amoah ,&nbsp;Rui Hu ,&nbsp;Yong Huang","doi":"10.1016/j.advwatres.2025.105150","DOIUrl":"10.1016/j.advwatres.2025.105150","url":null,"abstract":"<div><div>Over the past two decades, hydraulic tomography (HT) has been proven as a robust method for subsurface heterogeneity characterization with high resolution, which is critical for predicting solute transport. In this paper, HT was used to characterize the hydraulic conductivity (<em>K</em>) distribution within a laboratory sandbox aquifer, following established workflows from previous studies. The influence of estimated <em>K</em> fields on model calibration and validation performance was evaluated. Additionally, tracer injection data were considered as a key factor in the analytical framework. The simulated concentrations were compared to the observed data using inverse results derived from multiple modeling approaches, coupled with the classical advection–dispersion equation. The analysis yielded the following results: 1) geostatistical inversion provided better heterogeneity characterization compared to geology based zonation model, particularly in terms of hydraulic head data; 2) geostatistical inversion exhibited enhanced performance over the geology-based zonation model in predicting solute transport as evidenced by tracer concentration data, when injection data was incorporated into the inverse modeling framework; 3) breakthrough curve analysis revealed that solute transport predictions derived from HT still exhibited notable limitations, highlighting the need for further improvements; 4) overestimation issue identified in the HT results is linked to factors beyond observational error. Overall, this study highlights that the advantages of geostatistical inversion are obvious in heterogeneity characterization, and the involving of the tracer injection data is critical for improving solute transport prediction.</div></div>","PeriodicalId":7614,"journal":{"name":"Advances in Water Resources","volume":"206 ","pages":"Article 105150"},"PeriodicalIF":4.2,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145358098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modeling hydro-thermal processes in fractured geothermal reservoirs using embedded discrete fracture model (EDFM) and MRST","authors":"Tongchao Nan ,&nbsp;Tianwei Hu ,&nbsp;Zichen Wang ,&nbsp;Jiangjiang Zhang ,&nbsp;Jina Yin ,&nbsp;Yifan Xie ,&nbsp;Jichun Wu ,&nbsp;Chunhui Lu","doi":"10.1016/j.advwatres.2025.105120","DOIUrl":"10.1016/j.advwatres.2025.105120","url":null,"abstract":"<div><div>Fractures critically influence fluid flow and heat transfer in geothermal reservoirs, necessitating accurate and efficient simulation tools for resource management. Here we introduce ETH, an open-source Embedded Discrete Fracture Model (EDFM) module integrated with the MATLAB Reservoir Simulation Toolbox (MRST), enabling coupled hydrothermal simulations in both 2D and 3D fractured porous media. ETH extends prior EDFM frameworks by incorporating heat transfer and variable fluid properties, validated through four benchmarks ranging from analytical single-fracture cases to complex 3D fracture networks. Results demonstrate high accuracy (relative errors mostly &lt;1 %) and computational efficiency, with 20–50 % reduced cost compared to FEM-based discrete fracture models. ETH’s modular design supports mesh/time convergence control and integration of additional physics, facilitating robust modeling of heterogeneous and anisotropic reservoirs. This tool advances accessible, high-fidelity simulation capabilities for geothermal reservoir characterization, development, and uncertainty quantification.</div></div>","PeriodicalId":7614,"journal":{"name":"Advances in Water Resources","volume":"206 ","pages":"Article 105120"},"PeriodicalIF":4.2,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145155601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Establishing coastal water level magnitude-duration-frequency curves for infrastructure design","authors":"Meraj Sohrabi ,&nbsp;Hamed Moftakhari ,&nbsp;Hamid Moradkhani","doi":"10.1016/j.advwatres.2025.105179","DOIUrl":"10.1016/j.advwatres.2025.105179","url":null,"abstract":"<div><div>Extreme coastal floods are expected to be more frequent and/or intense in a warming climate. To protect both lives and assets, it is essential to continuously analyze the associated hazards and update engineering designs accordingly. While many studies have looked at how often and how high extreme sea levels get under various forcing conditions, much less attention has been paid to how long these extremes would last, which is just as important. The duration of elevated water levels can impact coastal areas in multiple ways, such as overwhelming drainage systems, bringing larger water volumes during prolonged events, and gradually weakening flood infrastructure over time. In this study, we address this overlooked aspect of extreme sea level events by introducing a framework for developing water level Magnitude-Duration-Frequency (MDF) curves using water level data from 217 coastal gauges distributed globally. Our analysis shows that the average water level difference between 1-hour and 24-hour durations is 0.8 meters for similar return periods, with a maximum difference of up to 3.63 meters for a 100-yr event. Additionally, we evaluate the impact of different event selection methods on the resulting MDF curves. Depending on the sampling methodology, differences in the developed MDF curves can reach up to half a meter across most studied regions. These curves can inform engineers and policymakers in developing more resilient flood mitigation strategies, refining risk assessments, and enhancing preparedness for future coastal hazards.</div></div>","PeriodicalId":7614,"journal":{"name":"Advances in Water Resources","volume":"206 ","pages":"Article 105179"},"PeriodicalIF":4.2,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145567769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Corrigendum to “Effects of wettability heterogeneity on multiphase flow: From pore-scale mechanisms to cross-scale insights” [Advances in Water Resources 199 (2025) 104956]","authors":"Jingrui Liu ,&nbsp;Kang Duan ,&nbsp;Rihua Jiang ,&nbsp;Qiangyong Zhang","doi":"10.1016/j.advwatres.2025.105148","DOIUrl":"10.1016/j.advwatres.2025.105148","url":null,"abstract":"","PeriodicalId":7614,"journal":{"name":"Advances in Water Resources","volume":"206 ","pages":"Article 105148"},"PeriodicalIF":4.2,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145733146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental and numerical model studies on flood inundation and drainage processes in a generalized urban street","authors":"Jiheng Feng ,&nbsp;Junqiang Xia ,&nbsp;Boliang Dong ,&nbsp;Xiaojie Wang ,&nbsp;Roger A. Falconer","doi":"10.1016/j.advwatres.2025.105159","DOIUrl":"10.1016/j.advwatres.2025.105159","url":null,"abstract":"<div><div>Accurate modelling of urban flood processes remains challenging due to the dual interaction between surface runoff and underground drainage, as well as the complexity in the layout of urban configurations. In this study, a series of experiments were conducted using a laboratory urban street model covering urban roads, buildings, street inlets, and an underground drainage network, in order to examine the hydrodynamic effects of the existence of buildings on flood inundation and drainage processes. A coupled 1D/2D hydrodynamic model was employed to replicate the flood inundation and drainage processes in the laboratory experiments, incorporating two different discharge capacity formulas of street inlet to evaluate their accuracy and applicability. The effect of building density on the flood inundation characteristics was also investigated through numerical tests. The following conclusions are drawn from this study: (i) the existence of buildings significantly altered the distribution of surface water depth, with the largest increase in water depth observed in the upstream and midstream domains under a high inflow, and the most notable water depth reduction occurring in the downstream domain under a low inflow; (ii) the existence of buildings could also increase the drainage discharge of street inlets by concentrating runoff and increasing the water depth around street inlets; (iii) among two inlet discharge capacity formulas used in this study, the unified formula presenting a simpler structure was capable of replicating the drainage processes in a flood event, especially at the steady stage; and (iv) under a fixed building number, different building densities reflected the spatial coverage of the building array, which critically influenced the flood inundation characteristics. Denser building layout led to lower water depths, while sparser layout caused deeper and more widespread inundation area.</div></div>","PeriodicalId":7614,"journal":{"name":"Advances in Water Resources","volume":"206 ","pages":"Article 105159"},"PeriodicalIF":4.2,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145412216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}