Article
Geosciences, Multidisciplinary
Russell S. Crosbie, Praveen Kumar Rachakonda
Summary: This paper describes a method to constrain the uncertainty in regional groundwater recharge estimates, successfully reducing the uncertainty by nearly a third. The spatial distribution of recharge was primarily influenced by rainfall distribution, but was comparatively reduced in areas with denser vegetation or finer textured soils.
HYDROGEOLOGY JOURNAL
(2021)
Article
Geosciences, Multidisciplinary
Thomas T. Anderson, Erick A. Bestland, Ilka Wallis, Peter J. C. Kretschmer, Lesja Soloninka, Edward W. Banks, Adrian D. Werner, Dioni I. Cendon, Markus M. Pichler, Huade Guan
Summary: Research conducted in an experimental catchment in South Australia revealed a paradox in groundwater flow dynamics due to differing groundwater types and recharge rates. During droughts and dry years, high-salinity groundwater contributed a larger proportion of stream flow compared to low-salinity groundwater. This paradox can be explained by the differing drainage rates of the geological formations, leading to varying contributions to stream flow during different hydrological conditions.
HYDROGEOLOGY JOURNAL
(2021)
Article
Environmental Sciences
Abolfazl Nazari Giglou, Rouzbeh Ross Nazari, Farhad Jazaei, Maryam Karimi
Summary: This study assessed the contribution of two adjacent watersheds with low and high urban development to the recharge process of the Memphis aquifer in central Jackson, Tennessee. The results showed that, per unit area, the watershed with low urban development contributed more to recharge and riverbed leakage compared to the watershed with high urban development. However, in terms of total recharge and riverbed leakage, the watershed with high urban development contributed more.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Mohsen Sherif, Ahmed Sefelnasr, Abdel Azim Ebraheem, Mohamed Al Mulla, Mohamed Alzaabi, Khaled Alghafli
Summary: The study analyzed the temporal and spatial variations of groundwater in the Quaternary aquifer in UAE, revealing a significant decrease in freshwater resources and increase in brackish water. Continuing the current groundwater exploitation could deplete freshwater resources in agricultural areas, necessitating more focus on the management of brackish water resources.
Article
Geosciences, Multidisciplinary
David F. Boutt, Lilly G. Corenthal, Brendan J. Moran, LeeAnn Munk, Scott A. Hynek
Summary: This study investigates discrepancies in the modern hydrologic budget of arid catchments in northern Chile, finding that modern water discharge exceeds groundwater recharge. Groundwater flow and drainage of stored groundwater during pluvial periods are needed to balance the water budgets in these regions.
HYDROGEOLOGY JOURNAL
(2021)
Article
Geosciences, Multidisciplinary
Cristian J. Apaza-Coria, Inti E. Rodriguez-Levy, Mirko Delfin Soruco, Marijke Huysmans
Summary: The Valle Alto basin in Bolivia is vital for agriculture and economic development. To ensure sustainable management of water resources, knowledge about groundwater recharge locations and extent is necessary. By using the Schosinsky method, researchers calculated the recharge rate and identified potential groundwater recharge areas in the basin. The study provides important information about the basin's water resources for the first time on a regional level.
HYDROGEOLOGY JOURNAL
(2022)
Article
Geosciences, Multidisciplinary
R. Ian Acworth, Gabriel C. Rau, Mark O. Cuthbert, Keith Leggett, Martin S. Andersen
Summary: The groundwater recharge investigation in the arid zone of Australia utilized a variety of hydrogeological techniques to study the response of the aquifer to rainfall events. The results showed that the total magnitude of a flood event is not the main control on indirect groundwater recharge at this location, and indicated the episodic and nonlinear nature of recharge in such environments. More detailed and long-term field investigation in other arid zone locations is recommended to further understand the dynamic processes governing groundwater recharge.
HYDROGEOLOGY JOURNAL
(2021)
Article
Geosciences, Multidisciplinary
Cassandra Wolf, Jason J. Gurdak, Zachary Lauffenburger, Leora Nanus, Ed Maurer
Summary: This study investigates the recharge mechanisms and rates in the vadose zones under different land use/land cover, climate variability, and future climate change. The results suggest that the historical recharge lag is correlated with the drought severity index, and land use/land cover plays a major role in determining the recharge lag time. Furthermore, future recharge is projected to be greater at irrigated sites compared to rangeland sites. The study also highlights the importance of total potential profiles in controlling recharge rates, which may undergo significant changes under future climate change, posing challenges to the sustainability of groundwater resources.
HYDROGEOLOGY JOURNAL
(2022)
Article
Environmental Sciences
Gyoo-Bum Kim, Chan-Ik Hwang, Myoung-Rak Choi
Summary: In this study, artificial groundwater recharging using surplus water resources within the local area is considered for a water shortage area, which entirely depends on groundwater wells for supply. Based on the analysis, it is suggested that surplus groundwater and stream discharge can be used as source waters for artificial recharge, with a proposed main target region for recharge and injection structures to be further researched for implementation.
ENVIRONMENTAL EARTH SCIENCES
(2021)
Article
Geosciences, Multidisciplinary
Ying Li, Ping Wu, Xiao-Qin Huang, Bo Zhang, Zhao-Xiang Xu, Yang Li, Jie Li, Lu-Chen Wang, Yu-Fang Sun, Xu-Chen Meng, Cheng-Wen Wang, Zi-Zhao Cai
Summary: Recent research in Yinchuan Plain has shown that groundwater flow is influenced by thick fine-grained sandy-clay units, long-term groundwater pumping, and processes such as evaporation and precipitation. The study reveals changes in flow direction and geochemical evolution of groundwater, highlighting the importance of understanding water-rock interactions and cation exchange processes in controlling groundwater chemistry. This information is critical for water resources development and management in the region.
HYDROGEOLOGY JOURNAL
(2021)
Article
Geosciences, Multidisciplinary
C. Labat, F. Larroque, B. de Grissac, A. Dupuy, M. Saltel, P. Bourbon
Summary: Geological deformations like anticlines play a significant role in aquifer system functioning. A multidisciplinary approach is proposed to characterize and quantify the impact of these features. Research in southwestern France has led to a better understanding of the complex architecture of aquifers and their interconnections with confining units.
HYDROGEOLOGY JOURNAL
(2021)
Article
Environmental Sciences
Xinyang Fan, Tim J. Peterson, Benjamin J. Henley, Meenakshi Arora
Summary: This paper proposes methods to quantify the sensitivity of groundwater level and recharge to temporal climate variability across Australia. It found that the sensitivity of head and recharge to precipitation change is nationally correlated, suggesting large-scale effects. These findings provide valuable insights for sustainable groundwater management.
WATER RESOURCES RESEARCH
(2023)
Article
Environmental Sciences
T. Roediger, S. Geyer, T. Odeh, C. Siebert
Summary: The scarcity of water resources has a severe impact on Jordan, and the continuous decline in groundwater levels will worsen the situation. Strengthening water resources management and model development is key to addressing this issue.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Geosciences, Multidisciplinary
Julio Goncalves, Abdallah Mahamat Nour, Camille Bouchez, Pierre Deschamps, Christine Vallet-Coulomb
Summary: The Chari-Logone watershed in Central Africa is the only hydrologically active part of the Lake Chad Basin. Groundwater contributes significantly to stream flow, estimated at around 64% of the total annual discharge, originating from highly productive bedrock and thick sedimentary aquifers in the region.
HYDROGEOLOGY JOURNAL
(2021)
Article
Environmental Sciences
Ehsan Bahrami Jovein, Amin Ghayouri Motlagh, Seyed Mahmood Hosseini
Summary: The sustainable use of groundwater resources in arid and semi-arid regions requires accurate understanding of regional water balance components, especially groundwater recharge. This paper presents a method for estimating groundwater recharge by minimizing the total error of system water and groundwater balance equations simultaneously.
ENVIRONMENTAL EARTH SCIENCES
(2023)
Article
Environmental Sciences
David L. Poulsen, Peter G. Cook, Shawan Dogramaci
WATER RESOURCES RESEARCH
(2020)
Article
Limnology
Valenti Rodellas, Thomas C. Stieglitz, Joseph J. Tamborski, Pieter van Beek, Aladin Andrisoa, Peter G. Cook
Summary: This study assesses uncertainties related to radium and radon inputs from groundwater and porewater fluxes into La Palme Lagoon, France. Using a model ensemble approach and sensitivity tests, the study demonstrates that conceptual uncertainties are a major source of uncertainty in estimating groundwater or porewater fluxes. Comparing independent methods helps to constrain the magnitude of porewater fluxes.
LIMNOLOGY AND OCEANOGRAPHY
(2021)
Article
Environmental Sciences
Oliver S. Schilling, Peter G. Cook, Pauline F. Grierson, Shawan Dogramaci, Craig T. Simmons
Summary: This study investigated the controls for SW-GW-vegetation interactions along intermittent rivers and ephemeral streams through numerical experiments. Results showed that infiltration is controlled by ephemerality and hydraulic conductivity (K), while transpiration is influenced by a complex interplay between ephemerality, hydraulic properties, and vegetation.
WATER RESOURCES RESEARCH
(2021)
Article
Environmental Sciences
Camille Bouchez, Peter G. Cook, Daniel Partington, Craig T. Simmons
Summary: The study compares surface water-groundwater exchange fluxes calculated by different methods, revealing differences in directions and magnitudes. River abstractions and irrigation patterns directly impact the estimated fluxes.
WATER RESOURCES RESEARCH
(2021)
Article
Geosciences, Multidisciplinary
Peter G. Cook, Anthony D. Miller, Ilka Wallis, Shawan Dogramaci
Summary: Dewatering of open pit mines can lower the regional water table, but re-injecting the extracted water into the subsurface can accelerate the recovery of the water table. There is an optimal distance for re-injection, which depends on the aquifer hydraulic diffusivity and the mine life, typically ranging from two to nine times the radius of the mine pit.
Article
Engineering, Civil
Peter G. Cook, Eddie W. Banks, Sarah K. Marshall, Glenn A. Harrington, Jordi Batlle-Aguilar, Shawan Dogramaci, Chris Turnadge
Summary: Faults can act as barriers or conduits to groundwater flow. Groundwater age inferred from hydrochemical data is a useful tool to estimate both barrier and conduit behavior. This study presents field measurements across three fault systems and discusses conceptual models of hydraulic head and groundwater age. The results show the importance of high data density to characterize fault zones.
JOURNAL OF HYDROLOGY
(2022)
Article
Environmental Sciences
S. K. Marshall, P. G. Cook, C. T. Simmons, L. F. Konikow, S. Dogramaci
Summary: This study demonstrates that sharp hydrogeological barriers can be included in groundwater model inversion even when their presence is uncertain. The use of phantom structures improves the identification of barriers and successfully infers their location and properties.
WATER RESOURCES RESEARCH
(2022)
Article
Geosciences, Multidisciplinary
M. Chmielarski, S. Dogramaci, P. G. Cook, J. L. McCallum
Summary: This study tests the limitations of using radioactive isotopes to track groundwater recharge behavior in confined aquifers and under transient conditions and finds that appropriate isotope selection is key to establishing past recharge regardless of aquifer lithology or geometry.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Biology
Caroline C. C. Mather, Heta M. M. Lampinen, Maurice Tucker, Matthias Leopold, Shawan Dogramaci, Mark Raven, Robert J. J. Gilkes
Summary: Microbial extracellular polymeric substances (EPS) and certain clay minerals can catalyze dolomite precipitation. This study found that EPS acts as a nucleation site for dolomite and clay minerals in groundwater dolocrete profiles, suggesting that similar mineralization processes may have occurred to form these dolocretes. These findings are important for understanding the microbial influence on mineralization in the environment.
Article
Environmental Sciences
Chengcheng Gong, Peter G. Cook, Rene Therrien, Wenke Wang, Philip Brunner
Summary: Groundwater models that simulate only saturated flow use groundwater recharge as an input parameter. However, variably saturated subsurface flow models require climate data such as precipitation and potential evapotranspiration instead of recharge. Despite the challenges in defining groundwater recharge in these models, variably saturated subsurface flow models can still provide crucial information for water resources management.
WATER RESOURCES RESEARCH
(2023)
Article
Geosciences, Multidisciplinary
Sarah A. Bourke, Margaret Shanafield, Paul Hedley, Sarah Chapman, Shawan Dogramaci
Summary: Persistent surface water pools along non-perennial rivers are essential water resources for plants, animals, and humans. This study presents a comprehensive framework for understanding the hydrology of these pools, including the key hydraulic mechanisms that control their persistence. Throughflow of alluvial water and groundwater discharge are identified as the main mechanisms, and various diagnostic tools are summarized and critiqued for their application in studying these hydraulic processes. The framework allows for assessing the vulnerability of river pools to climate change and groundwater extraction.
HYDROLOGY AND EARTH SYSTEM SCIENCES
(2023)
Article
Engineering, Civil
Thomas Tugwell-Wootton, Grzegorz Skrzypek, Shawan Dogramaci, James McCallum, Pauline F. Grierson
JOURNAL OF HYDROLOGY
(2020)