Article
Environmental Sciences
Zhongyuan Xu, Jayaram Hariharan, Paola Passalacqua, Elisabeth Steel, Austin Chadwick, Chris Paola, Anner Paldor, Holly A. Michael
Summary: This study investigates the vulnerability of coastal deltaic aquifers to seawater intrusion, contamination, and groundwater abstraction, as well as the impact of surface deposition changes on the distribution and transport of groundwater solutes. By simulating groundwater flow and solute transport under different contamination scenarios, the research reveals that the vulnerability of deltaic aquifers to seawater intrusion is correlated with sand fraction, and vertical transport of contaminants is influenced by channel stacking patterns.
WATER RESOURCES RESEARCH
(2022)
Article
Engineering, Civil
Jaehyun Lee, Weon Shik Han, Peter K. Kang, Seonkyoo Yoon, Sungwook Choung, Jeonghwan Hwang, Jehyun Shin
Summary: Understanding the transport of Cs-137 in porous and fractured aquifers is crucial for assessing the risk of nuclear accidents. This study investigates the transport of desorbed Cs-137 beneath a dam using a 2D aquifer model. The results show that the distribution coefficient (Kd) is a critical parameter controlling Cs-137 transport, while temperature has a relatively minor effect. Physical and chemical heterogeneity also significantly influence Cs-137 transport, leading to large variability in migration rates and annual doses.
JOURNAL OF HYDROLOGY
(2022)
Article
Optics
Ludovico Lami, Bartosz Regula, Ryuji Takagi, Giovanni Ferrari
Summary: Resource theories provide a framework for characterizing properties of physical systems, with a universal resource quantifier based on robustness. It can be used to quantify resources in general probabilistic theories and is computed through convex conic optimization problems. The robustness acts as a faithful and strongly monotonic measure in resource theories described by convex and closed sets of free states, and has applications in various physical resources such as optical nonclassicality, entanglement, non-Gaussianity, and coherence.
Article
Environmental Sciences
Volodymyr Korolov, Krystyna Kurowska, Olha Korolova, Yaroslav Zaiets, Igor Milkovich, Hubert Kryszk
Summary: This article proposes a methodology for determining evacuation destinations based on the shortest distance criterion, focusing on using geoinformation technologies to identify optimal routes and calculate shortest distances for evacuating people and equipment to safe areas.
Article
Engineering, Civil
Yuhua Yan, Xiaojun Wang, Yunlong Li
Summary: A non-probabilistic credible set model is proposed for uncertainty quantification of structural parameters in this paper. This method surpasses probabilistic and traditional non-probabilistic methods by providing both the distribution range and credibility of uncertain parameters, resulting in reduced computation time and improved credibility. The average inverse-distance information entropy, expanded uncertainty, and credibility are introduced to establish a one-dimensional non-probabilistic credible set uncertainty quantification procedure. The theory of non-probabilistic sets and correlation analysis of multidimensional uncertain parameters are used to develop a multidimensional non-probabilistic credible set uncertainty quantification method. The feasibility of applying this method to various engineering problems is verified through case studies.
Article
Environmental Sciences
David Viennet, Guillaume Lorette, David Labat, Matthieu Fournier, Mathieu Sebilo, Olivier Araspin, Pierre Crancon
Summary: This study utilizes a mobile source mixing model approach to quantify the contributions of different water sources in a karst system, addressing difficulties in water source assessment and management. The study site is the Ouysse karst system in western France, which receives water from three different chemical facies. The results and conclusions of this study will be used for forecasting and managing water resources.
Article
Multidisciplinary Sciences
Devaraj Gopinathan, Mohammad Heidarzadeh, Serge Guillas
Summary: This paper demonstrates the importance of statistical emulation in the end-to-end physical and numerical modeling of tsunamis, providing a large number of predictions through an emulator to quantify high risk but low probability hazard thresholds. By rigorously studying different stages of tsunami events, it reveals probabilistic distributions of tsunami velocities and heights in various regions.
PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
(2021)
Article
Geosciences, Multidisciplinary
Abi Stone, Yijian Zeng, Lianyu Yu, Martine van der Ploeg, Heike Wanke
Summary: This study explores the hydrostratigraphy characteristics of vegetated linear dunes in the southern Kalahari using chloride depth profiles as a novel proxy for palaeomoisture. The results show complex and variable trends in dryland rainfall, influenced by factors such as evaporative enrichment, infiltration, and geomorphology.
FRONTIERS IN EARTH SCIENCE
(2022)
Review
Geosciences, Multidisciplinary
Zhilin Guo, Rui Ma, Yong Zhang, Chunmiao Zheng
Summary: Natural aquifers often display complex physical and chemical heterogeneities, leading to anomalous transport phenomena. This anomalous transport can cause continuous deterioration of water quality and rapid spreading of pollutants, as well as constraining the efficacy of groundwater remediation. Comprehensive studies on the impacts of non-Fickian dispersion on contaminant transport and remediation are still needed.
SCIENCE CHINA-EARTH SCIENCES
(2021)
Article
Environmental Sciences
Hamed Ketabchi, Mohammad Sina Jahangir
Summary: The study aims to quantify the influence of hydraulic conductivity field heterogeneity on seawater intrusion, and the results show that considering land-surface inundation increases SWI wedge length and seawater volume, while decreasing transition zone width.
JOURNAL OF CONTAMINANT HYDROLOGY
(2021)
Article
Water Resources
Mahmoud M. Khalil, Kay Hamer, Thomas Pichler, Abotalib Z. Abotalib
Summary: The study on the Wadi Araba Basin reveals the influence of faults on controlling groundwater flow in the Sahara, showing that springs are distributed along structurally controlled scarps and cold springs exhibit similarities with other regional water sources. The findings emphasize the complex role of faults and folds in controlling groundwater flow dynamics.
HYDROLOGICAL PROCESSES
(2021)
Article
Water Resources
Georgios Etsias, Gerard A. Hamill, Jesus F. Aguila, Eric M. Benner, Mark C. McDonnell, Ashraf A. Ahmed, Raymond Flynn
Summary: This study utilized laboratory experiments and numerical simulations to assess the impact of aquifer stratification on saltwater intrusion. The research found that the length of intrusion, width of the mixing zone, and angle of intrusion in stratified aquifers are primarily influenced by permeability contrast, total aquifer transmissivity, and the number of heterogeneous layers, all of which are positively correlated. Additionally, changes in the width of the mixing zone are related to permeability contrast, and variations in applied hydraulic head cause a transient widening of the mixing zone.
HYDROLOGICAL PROCESSES
(2021)
Article
Engineering, Civil
Cuiting Qi, Hongbin Zhan
Summary: Vadose zone well (VZW) injection is an effective method of managed aquifer recharge, and this study investigates the influences of soil properties and subsurface heterogeneity on VZW recharge. The results demonstrate that soil properties play a significant role in the recharge process, especially the saturated hydraulic conductivity. Subsurface heterogeneity also has large impacts on VZW recharge, including the presence of low permeable layers in the aquifer. Understanding these influences provides valuable guidance for the design and management of VZWs.
JOURNAL OF HYDROLOGIC ENGINEERING
(2022)
Review
Energy & Fuels
Hui Yuan, Wenhong Li, Yingzhong Yuan, Jiao Luo, Wende Yan
Summary: Horizontal well is an important method for developing thin reservoirs with edge-bottom water aquifer. The productivity formula for horizontal wells in heterogeneous reservoir with composite water aquifer considers the interference between multiple well sections. The research results were validated using test data from horizontal wells in Weizhou 11-1 oilfield, showing good predictive accuracy for new well productivity.
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2021)
Article
Management
Jorg Finsterwalder
Summary: This article redefines the concept of social distancing and introduces the concepts of actor distance and actor safe zone, as well as their relationship to the concept of wellbeing. It also discusses the importance of these concepts in service research and practice.
SERVICE INDUSTRIES JOURNAL
(2021)