Article
Environmental Sciences
Allen M. Shapiro, Frederick D. Day-Lewis
Summary: Rapid infiltration following precipitation can lead to groundwater contamination, requiring real-time monitoring of meteorological and groundwater levels to estimate recharge. A physics-based model is proposed to estimate recharge, utilizing real-time data for water-table altitude, precipitation, and evapotranspiration. Model results indicate that the frequency of observations affects the allocation between preferential and diffuse flow.
WATER RESOURCES RESEARCH
(2021)
Article
Engineering, Civil
Anna Gumula-Kawecka, Beata Jaworska-Szulc, Adam Szymkiewicz, Wioletta Gorczewska-Langner, Malgorzata Pruszkowska-Caceres, Rafael Angulo-Jaramillo, Jirka Simunek
Summary: Groundwater recharge quantification is crucial in hydrogeology, and this study in northern Poland utilized 1D vertical flow in the vadose zone and water table fluctuation analysis to investigate local-scale recharge of a shallow sandy aquifer. By combining these methods and adjusting parameters through simulations and observations, the study refined the range of recharge estimates and highlighted the importance of extended observations and simulations in capturing recharge variability over time.
JOURNAL OF HYDROLOGY
(2022)
Article
Engineering, Environmental
Christian Zerfass, Robert Lehmann, Nico Ueberschaar, Carlos Sanchez-Arcos, Kai Uwe Totsche, Georg Pohnert
Summary: Understanding the composition, transport and evolution of dissolved organic matter in groundwater is crucial for its protection and sustainable use. Groundwater metabolomics provides valuable insights into the response of groundwater ecosystems to external impacts and the effects of recharge dynamics.
Article
Geosciences, Multidisciplinary
Peshawa Al-Jaf, Martin Smith, Friederike Gunzel
Summary: The study focused on flow mechanisms in the Chalk unsaturated zone in South East England, finding that groundwater response to rainfall is slower during dry seasons and faster during wet seasons. Rapid responses were observed at NHB and PE sites during wet seasons, while a slower response was observed at an urbanized site (PP). The study suggests that fracture and karstic flow processes play a role in water conduction in addition to matrix flow.
Article
Water Resources
Yin Long, Tianming Huang, Fen Zhang, Zhenbin Li, Baoqiang Ma, Yiman Li, Zhonghe Pang
Summary: This study identified the sources of sulphate in a loess aquifer by analyzing isotopes and hydrochemical data, finding that sulphate in groundwater mainly comes from old precipitation and extractable sulphate originates mainly from evaporite minerals. The method of using extractable SO4 concentration for SMB estimation was deemed inappropriate for recharge rate estimation in loess areas.
HYDROLOGICAL PROCESSES
(2021)
Article
Water Resources
Sanyuan Jiang, Wenbo Rao, Liangfeng Han, Karina T. Meredith
Summary: Understanding groundwater recharge mechanisms is crucial for sustainable groundwater resource assessment and management, especially in arid and semiarid areas. This study utilized chloride and stable isotopes to estimate groundwater recharge in the Ordos Plateau, northern China. The relationship between chloride concentrations in saturated zone water and soil water residence time was derived, providing insights into water flow and chloride transport. The study concluded that intense rainfall events were the main contributors to groundwater recharge, while small rainfall events only contributed to chloride flux on the soil surface.
HYDROLOGICAL PROCESSES
(2023)
Article
Geosciences, Multidisciplinary
F. Manna, J. Kennel, B. L. Parker
Summary: This study uses high-frequency time series analysis and cross-correlation to investigate the relationship between precipitation and water-level responses in sandstone wells in southern California. The results suggest that the water table only rises when a certain precipitation threshold is reached, indicating replenishment of water content from a previous dry season. The study also identifies different flow mechanisms based on lag times. These findings are consistent with previous research on Chalk aquifer in England, indicating similar precipitation responses in fractured porous media.
HYDROGEOLOGY JOURNAL
(2022)
Article
Geosciences, Multidisciplinary
Mohammad Karamouz, Hadi Meidani, Davood Mahmoodzadeh
Summary: A spatial-nonstationarity-based inverse UZF modeling framework is developed for groundwater recharge estimation. The framework uses calibrated soil hydraulic parameters to generate a regional map of recharge, and utilizes a probabilistic approach to provide probability maps of recharge. The study demonstrates good performance of the proposed methodology.
HYDROGEOLOGY JOURNAL
(2022)
Article
Geosciences, Multidisciplinary
Maria C. Caputo, Lorenzo De Carlo, Rita Masciale, Kim Perkins, Antonietta C. Turturro, John R. Nimmo
Summary: Preferential flow in the unsaturated zone is complex, but plays a significant role in hydrologic processes. Diverse experimental methods have been used to detect and quantify preferential pathways. Understanding preferential flow is crucial for accurate prediction of groundwater recharge and contamination risks.
HYDROGEOLOGY JOURNAL
(2023)
Article
Geosciences, Multidisciplinary
Tracie R. Jackson, Joseph M. Fenelon, Seth R. Gainey
Summary: A study in a volcanic highland recharge area in Nevada found that recharge through mega-thick unsaturated zones via preferential flow is common. Water-level trends are affected by wet and dry winters, with modern recharge water potentially playing a larger role in the hydrological cycle than previously thought.
Article
Engineering, Geological
Ivan Depina, Saket Jain, Sigurdur Mar Valsson, Hrvoje Gotovac
Summary: This paper investigates the application of Physics-Informed Neural Networks (PINNs) to inverse problems in unsaturated groundwater flow. PINNs solve inverse problems by reformulating the loss function of a deep neural network to simultaneously satisfy measured values and unknown values at collocation points distributed across the problem domain. Results demonstrate that PINNs are capable of efficiently solving the inverse problem with relatively accurate approximation of the solution to the Richards equation and estimates of the van Genuchten model parameters.
GEORISK-ASSESSMENT AND MANAGEMENT OF RISK FOR ENGINEERED SYSTEMS AND GEOHAZARDS
(2022)
Article
Environmental Sciences
Gal Weissman, Ofer Dahan, Golan Bel
Summary: Groundwater recharge is crucial for water resource management, especially in arid and semi-arid areas under agricultural fields. However, estimating the recharge fluxes is challenging due to soil heterogeneity and complex flow processes. This study presents a new method that takes into account soil heterogeneity to estimate the probability distribution of recharge fluxes.
WATER RESOURCES RESEARCH
(2022)
Article
Geosciences, Multidisciplinary
David N. Dralle, W. Jesse Hahm, Daniella M. Rempe
Summary: Accurate observation of hillslope groundwater storage and instantaneous recharge remains difficult due to limited monitoring and complex mountainous landscapes. A novel storage-discharge method is introduced to estimate hillslope recharge and recharge ratio, which relies on streamflow data and is validated with independent measurements. The method offers valuable insights into controls on groundwater recharge, enhancing our understanding of a critical flux in the hydrologic cycle.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Engineering, Civil
Luwen Zhuang, Amir Raoof, Mojtaba G. Mahmoodlu, Sara Biekart, Riemer de Witte, Lubna Badi, Martinus Th van Genuchten, Kairong Lin
Summary: Hydrodynamic dispersion in soils is significantly influenced by soil water saturation, and there is a non-monotonic relationship between fluid saturation and solute dispersivity. The extent of non-monotonicity is more pronounced for a relatively coarse-textured sand compared to a finer sand, which helps explain some inconsistencies in the literature regarding saturation-dispersivity relationships.
JOURNAL OF HYDROLOGY
(2021)
Article
Engineering, Civil
Po-Yi Chou
Summary: Studying temperature-depth variation data using FBG sensors provides insights into groundwater flow dynamics in multilayered fractured formations.
JOURNAL OF HYDROLOGY
(2021)
Article
Engineering, Civil
Edward K. P. Bam, Andrew M. Ireson
JOURNAL OF HYDROLOGY
(2019)
Article
Environmental Sciences
A. M. Peterson, W. H. Helgason, A. M. Ireson
WATER RESOURCES RESEARCH
(2019)
Article
Water Resources
Mahtab Nazarbakhsh, Andrew M. Ireson, Alan G. Barr
HYDROLOGICAL PROCESSES
(2020)
Article
Environmental Sciences
Edward K. P. Bam, Andrew M. Ireson, Garth van Der Kamp, Jim M. Hendry
WATER RESOURCES RESEARCH
(2020)
Article
Meteorology & Atmospheric Sciences
Martyn P. Clark, Reza Zolfaghari, Kevin R. Green, Sean Trim, Wouter J. M. Knoben, Andrew Bennett, Bart Nijssen, Andrew Ireson, Raymond J. Spiteri
Summary: This paper aims to improve the numerical implementation of land models by presenting a unified framework and introducing synthetic test cases to evaluate the implementation. Numerical simulations are compared against benchmarks, including other models, analytical solutions, and laboratory observations, to build confidence in the numerical model implementation.
JOURNAL OF HYDROMETEOROLOGY
(2021)
Article
Environmental Sciences
S. K. Amankwah, A. M. Ireson, C. Maule, R. Brannen, S. A. Mathias
Summary: The phenomenon of freezing point depression in frozen soils is caused by capillary and adsorption effects and solute effects, with salts lowering the freezing temperature. The soil freezing characteristic curve (SFC) characterizes the relationship between liquid water content and temperature in frozen soils. Studies suggest that salinity plays a dominant role in determining the SFC in soils containing solutes.
WATER RESOURCES RESEARCH
(2021)
Editorial Material
Water Resources
Helen Baulch, Colin Whitfield, Jared Wolfe, Nandita Basu, Angela Bedard-Haughn, Kenneth Belcher, Robert Clark, Grant Ferguson, Masaki Hayashi, Andrew Ireson, Patrick Lloyd-Smith, Phil Loring, John W. Pomeroy, Kevin Shook, Christopher Spence
CANADIAN WATER RESOURCES JOURNAL
(2021)
Article
Water Resources
Andrew M. Ireson, Ines Sanchez-Rodriguez, Sujan Basnet, Haley Brauner, Talia Bobenic, Rosa Brannen, Mennatullah Elrashidy, Morgan Braaten, Seth K. Amankwah, Alan Barr
Summary: This study uses soil moisture data from five long-term field sites and tests two configurations to constrain modelled hydrological fluxes. The results show that the calibration based on hydraulic properties outperforms the texture-based calibration in reproducing changes in soil moisture storage. However, both methods perform reasonably well, especially in the summer months. The predicted hydrological fluxes, when constrained by soil moisture observations, have large uncertainties associated with equifinality. The uncertainty is larger for the hydraulic properties-based calibration, despite its better performance. Therefore, additional sources of information are recommended to reduce uncertainties.
HYDROLOGICAL PROCESSES
(2022)
Article
Water Resources
Howard S. Wheater, John W. Pomeroy, Alain Pietroniro, Bruce Davison, Mohamed Elshamy, Fuad Yassin, Prabin Rokaya, Abbas Fayad, Zelalem Tesemma, Daniel Princz, Youssef Loukili, Chris M. DeBeer, Andrew M. Ireson, Saman Razavi, Karl-Erich Lindenschmidt, Amin Elshorbagy, Matthew MacDonald, Mohamed Abdelhamed, Amin Haghnegahdar, Ala Bahrami
Summary: Cold regions play a crucial role in providing water resources globally, but are facing rapid changes due to climate warming. Modelling the hydrology of these regions is challenging due to limited ground-based data and complex hydrological processes, controlled by phase change energetics. Recent developments in modelling technology, such as the MESH scheme in Canada, aim to improve representations of cold region processes and water management, though challenges in predicting accurately remain.
HYDROLOGICAL PROCESSES
(2022)
Editorial Material
Water Resources
Peter N. Whittington, Andrew Ireson, Christopher Spence
HYDROLOGICAL PROCESSES
(2022)
Article
Environmental Sciences
Seth K. Amankwah, Andrew M. Ireson, Rosa Brannen
Summary: Dielectric soil moisture probes provide a frequently logged field observation of volumetric water content, but calibration is challenging due to limitations in accurately measuring the soil bulk dielectric constant and obtaining reliable direct observations for calibration. This study proposes a physically based calibration relationship that considers errors in the bulk dielectric constant and quantifies the uncertainty caused by the presence of ice. The proposed relationship outperforms existing approaches and highlights the importance of accounting for spatial heterogeneity in calibration samples.
VADOSE ZONE JOURNAL
(2022)
Article
Geosciences, Multidisciplinary
Andrew M. Ireson, Raymond J. Spiteri, Martyn P. Clark, Simon A. Mathias
Summary: A simple numerical solution was implemented to efficiently solve the pressure-head form of Richards' equation. The solution showed mass conservation and was compared with other methods, including the Hydrus 1D model. The implemented solution had comparable runtimes and better water balance performance.
GEOSCIENTIFIC MODEL DEVELOPMENT
(2023)
Article
Geosciences, Multidisciplinary
Chris M. DeBeer, Howard S. Wheater, John W. Pomeroy, Alan G. Barr, Jennifer L. Baltzer, Jill F. Johnstone, Merritt R. Turetsky, Ronald E. Stewart, Masaki Hayashi, Garth van der Kamp, Shawn Marshall, Elizabeth Campbell, Philip Marsh, Sean K. Carey, William L. Quinton, Yanping Li, Saman Razavi, Aaron Berg, Jeffrey J. McDonnell, Christopher Spence, Warren D. Helgason, Andrew M. Ireson, T. Andrew Black, Mohamed Elshamy, Fuad Yassin, Bruce Davison, Allan Howard, Julie M. Theriault, Kevin Shook, Michael N. Demuth, Alain Pietroniro
Summary: The interior of western Canada, like many similar cold mid- to high-latitude regions worldwide, is experiencing extensive and rapid climate and environmental changes. Understanding changes in coupled climate-land-hydrological systems is crucial but limited by lack of understanding of cold-region process responses and interactions. It is important to consider underlying processes and base predictive models on proper physics, especially under conditions of non-stationarity where the past cannot reliably guide the future.
HYDROLOGY AND EARTH SYSTEM SCIENCES
(2021)
Article
Geosciences, Multidisciplinary
Zhe Zhang, Yanping Li, Michael Barlage, Fei Chen, Gonzalo Miguez-Macho, Andrew Ireson, Zhenhua Li
HYDROLOGY AND EARTH SYSTEM SCIENCES
(2020)
Article
Geosciences, Multidisciplinary
Edward K. P. Bam, Rosa Brannen, Sujata Budhathoki, Andrew M. Ireson, Chris Spence, Garth van der Kamp
EARTH SYSTEM SCIENCE DATA
(2019)
Article
Engineering, Civil
Arfan Arshad, Ali Mirchi, Javier Vilcaez, Muhammad Umar Akbar, Kaveh Madani
Summary: High-resolution, continuous groundwater data is crucial for adaptive aquifer management. This study presents a predictive modeling framework that incorporates covariates and existing observations to estimate groundwater level changes. The framework outperforms other methods and provides reliable estimates for unmonitored sites. The study also examines groundwater level changes in different regions and highlights the importance of effective aquifer management.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Lihua Chen, Jie Deng, Wenzhe Yang, Hang Chen
Summary: A new grid-based distributed karst hydrological model (GDKHM) is developed to simulate streamflow in the flood-prone karst area of Southwest China. The results show that the GDKHM performs well in predicting floods and capturing the spatial variability of karst system.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Faruk Gurbuz, Avinash Mudireddy, Ricardo Mantilla, Shaoping Xiao
Summary: Machine learning algorithms have shown better performance in streamflow prediction compared to traditional hydrological models. In this study, researchers proposed a methodology to test and benchmark ML algorithms using artificial data generated by physically-based hydrological models. They found that deep learning algorithms can correctly identify the relationship between streamflow and rainfall in certain conditions, but fail to outperform traditional prediction methods in other scenarios.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Yadong Ji, Jianyu Fu, Bingjun Liu, Zeqin Huang, Xuejin Tan
Summary: This study distinguishes the uncertainty in drought projection into scenario uncertainty, model uncertainty, and internal variability uncertainty. The results show that the estimation of total uncertainty reaches a minimum in the mid-21st century and that model uncertainty is dominant in tropical regions.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Z. R. van Leeuwen, M. J. Klaar, M. W. Smith, L. E. Brown
Summary: This study quantifies the effectiveness of leaky dams in reducing flood peak magnitude using a transfer function noise modelling approach. The results show that leaky dams have a significant but highly variable impact on flood peak magnitude, and managing expectations should consider event size and type.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Zeda Yin, Yasaman Saadati, M. Hadi Amini, Linlong Bian, Beichao Hu
Summary: Combined sewer overflows pose significant threats to public health and the environment, and various strategies have been proposed to mitigate their adverse effects. Smart control strategies have gained traction due to their cost-effectiveness but face challenges in balancing precision and computational efficiency. To address this, we propose exploring machine learning models and the inversion of neural networks for more efficient CSO prediction and optimization.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Qimou Zhang, Jiacong Huang, Jing Zhang, Rui Qian, Zhen Cui, Junfeng Gao
Summary: This study developed a N-cycling model for lowland rural rivers covered by macrophytes and investigated the N imports, exports, and response to sediment dredging. The findings showed a considerable N retention ability in the study river, with significant N imports from connected rivers and surrounding polders. Sediment dredging increased particulate nitrogen resuspension and settling rates, while decreasing ammonia nitrogen release, denitrification, and macrophyte uptake rates.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Xue Li, Yingyin Zhou, Jian Sha, Man Zhang, Zhong-Liang Wang
Summary: High-resolution climate data is crucial for predicting regional climate and water environment changes. In this study, a two-step downscaling method was developed to enhance the spatial resolution of GCM data and improve the accuracy for small basins. The method combined medium-resolution climate data with high-resolution topographic data to capture spatial and temporal details. The downscaled climate data were then used to simulate the impacts of climate change on hydrology and water quality in a small basin. The results demonstrated the effectiveness of the downscaling method for spatially differentiated simulations.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Tongqing Shen, Peng Jiang, Jiahui Zhao, Xuegao Chen, Hui Lin, Bin Yang, Changhai Tan, Ying Zhang, Xinting Fu, Zhongbo Yu
Summary: This study evaluates the long-term interannual dynamics of permafrost distribution and active layer thickness on the Tibetan Plateau, and predicts future degradation trends. The results show that permafrost area has been decreasing and active layer thickness has been increasing, with an accelerated degradation observed in recent decades. This has significant implications for local water cycle processes, water ecology, and water security.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Chi Zhang, Xu Zhang, Qiuhong Tang, Deliang Chen, Jinchuan Huang, Shaohong Wu, Yubo Liu
Summary: Precipitation over the Tibetan Plateau is influenced by systems such as the Asian monsoons, the westerlies, and local circulations. The Indian monsoon, the westerlies, and local circulations are the main systems affecting precipitation over the entire Tibetan Plateau. The East Asian summer monsoon primarily affects the eastern Tibetan Plateau. The Indian monsoon has the greatest influence on precipitation in the southern and central grid cells, while the westerlies have the greatest influence on precipitation in the northern and western grid cells. Local circulations have the strongest influence on the central and eastern grid cells.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Manuel Almeida, Antonio Rodrigues, Pedro Coelho
Summary: This study aimed to improve the accuracy of Total Phosphorus export coefficient models, which are essential for water management. Four different models were applied to 27 agroforestry watersheds in the Mediterranean region. The modeling approach showed significant improvements in predicting the Total Phosphorus diffuse loads.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Yutao Wang, Haojie Yin, Ziyi Wang, Yi Li, Pingping Wang, Longfei Wang
Summary: This study investigated the distribution and transformation of dissolved organic nitrogen (DON) in riverbed sediments impacted by effluent discharge. The authors found that the spectral characteristics of dissolved organic matter (DOM) in surface water and sediment porewater could be used to predict DON variations in riverbed sediments. Random forest and extreme gradient boosting machine learning methods were employed to provide accurate predictions of DON content and properties at different depths. These findings have important implications for wastewater discharge management and river health.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Saba Mirza Alipour, Kolbjorn Engeland, Joao Leal
Summary: This study assesses the uncertainty associated with 100-year flood maps under different scenarios using Monte Carlo simulations. The findings highlight the importance of employing probabilistic approaches for accurate and secure flood maps, with the selection of probability distribution being the primary source of uncertainty in precipitation.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Janine A. de Wit, Marjolein H. J. van Huijgevoort, Jos C. van Dam, Ge A. P. H. van den Eertwegh, Dion van Deijl, Coen J. Ritsema, Ruud P. Bartholomeus
Summary: The study focuses on the hydrological consequences of controlled drainage with subirrigation (CD-SI) on groundwater level, soil moisture content, and soil water potential. The simulations show that CD-SI can improve hydrological conditions for crop growth, but the success depends on subtle differences in geohydrologic characteristics.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Constantin Seidl, Sarah Ann Wheeler, Declan Page
Summary: Water availability and quality issues will become increasingly important in the future due to climate change impacts. Managed Aquifer Recharge (MAR) is an effective water management tool, but often overlooked. This study analyzes global MAR applications and identifies the key factors for success, providing valuable insights for future design and application.
JOURNAL OF HYDROLOGY
(2024)