Results 51 to 60 of about 1,472 (178)

Tides of the Midland: From Groundwater Into the River

Hydrological Processes, Volume 40, Issue 8, August 2026.
Tides in a river that is NOT influenced by the ocean, is not in the coastal area and is more than 300 m above sea level are caused by groundwater tides. As the phases of the Moon change, the amplitudes of the streamwater oscillations vary synchronously with those of gravitational acceleration.
Andrei‐Emil Briciu
wiley   +1 more source

3D effects of seawater on electrical resistivity tomography near shorelines—Challenges and possible solutions inferred from synthetic and field data

Near Surface Geophysics, Volume 24, Issue 4, Page 364-391, August 2026.
Abstract Electrical resistivity tomography (ERT) is one of the most widely used geophysical techniques for hydrogeological questions, such as investigating the groundwater transition zone between land and sea. The interpretation of 2D coast‐parallel ERT profiles is challenging because most of the electrical current flows through the highly conductive ...
Simon Levin Fischer, Ercan Erkul, Jasper Justus Lutz Hoffmann, Şerif Barış, Ertan Pekşen, İsmail Kaplanvural, Wolfgang Rabbel   +6 more
wiley   +1 more source

Modeling Transient Flow in Heterogeneous Aquifers With the Mixed Pressure‐Velocity Formulation of Physics Informed Neural Networks

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 4, August 2026.
Abstract Physics‐Informed Neural Networks (PINNs) have emerged as a powerful framework for modeling groundwater flow using deep learning neural networks, particularly in scenarios where traditional data‐driven approaches are limited by the scarcity of data.
Adhish Virupaksha, Marwan Fahs, Hussein Hoteit, Thomas Nagel, François Lehmann   +4 more
wiley   +1 more source

Classification and Conceptualization of Karst Recharge Processes Through Spectral and Change Point Analysis of Drip Water Dynamics

Water Resources Research, Volume 62, Issue 8, August 2026.
Abstract Karst aquifers are notoriously heterogeneous, making it challenging to characterize recharge dynamics using traditional, static indicators. Percolating (drip) water records, when analyzed at high temporal resolution, offer insights into flow mechanisms in karst vadose zones.
D. Sun, A. Baker, M. S. Andersen, L. K. McDonough, M. Shanafield, A. Kumar   +5 more
wiley   +1 more source

Karst Aquifer evolution in fractured, porous rocks [PDF]

Water Resources Research, 2000
The evolution of flow in a fractured, porous karst aquifer is studied by means of the finite element method on a two‐dimensional mesh of irregularly spaced nodal points. Flow within the karst aquifer is driven by surface recharge from the entire region, simulating a precipitation pattern, and is directed toward an entrenched river as a base level ...
Kaufmann, G., Braun, J.
openaire   +3 more sources

Carbonate Clumped Isotopes (Δ47) in Cenozoic “Island Dolostones”: Dolomitization Driven by Modified Seawater at Earth‐Surface Conditions

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.
Abstract Dolomite [CaMg(CO3)2] is abundant throughout the geological record and constitutes a major component of many ancient carbonate platforms, yet the mechanisms responsible for its formation under Earth‐surface conditions are equivocal. Given that modern examples of low‐temperature dolomitization are rare, Cenozoic “island dolostones” provide ...
Cole A. McCormick, Brian Jones, Ellen K. Olsen, Miquela Ingalls   +3 more
wiley   +1 more source

Implicit Neural Representation to Improve the Resolution of 3D Electrical Resistivity

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 4, August 2026.
Abstract Electrical resistivity tomography (ERT) is a subsurface imaging geophysical technique. Traditional ERT inversion methods, such as smoothness‐constrained least‐squares approaches, often suffer from discretization artifacts when reconstructing electrical resistivity from resistance measurements.
Yusen Yuan, Kenneth C. Carroll, Huichao Yin, Pushpa R. Dahal, Dale F. Rucker, Ahsan Jamil, Anderson Ward, Zachary Lepchitz, Dan Lu   +8 more
wiley   +1 more source

A statistical approach for describing coastal karst aquifer: the case of the Salento aquifer (Southern Italy)

Acque Sotterranee
A time series approach was proposed to improve the knowledge of a wide coastal karst aquifer. The approach combines time series decomposition, trend, autocorrelation and cross-correlation analyses using both daily and monthly temperature, rainfall and ...
Maria Rosaria Alfio, Gabriella Balacco, Valeria Dragone, Maurizio Polemio   +3 more
doaj   +1 more source

Hydraulic Conductivity Behaviors of Karst Aquifer With Conduit-Fissure Geomaterials

Frontiers in Earth Science, 2020
This study used laboratory analog and numerical experiments to simulate groundwater flow in karst aquifer and investigated the effect of dimension factors and water pressure on the hydraulic conductivity for karst groundwater flow in conduit-fissure ...
Xian Li, Tingting Ke, Yanqiao Wang, Tingguo Zhou, Delong Li, Fang Tong, Jinmei Wen   +6 more
doaj   +1 more source

Tracer Test as a Tool for Optimizing the Flow Patterns and Efficiency of a Full‐Scale Drainage Water Treatment Wetland

Water and Environment Journal, Volume 40, Issue 3, Page 408-423, August 2026.
Tracer testing assessed hydraulics and nitrate removal in three full‐scale agricultural drainage treatment wetlands over 3.5 years (three tests). The first test showed rapid, short‐circuited flow and low residence time. After modifying the collection system, the second test increased residence time from 1 to 7 days.
Jan Kukačka, Michal Šereš, Petr Fučík, Tereza Hnátková, Adam Sochacki, Markéta Kaplická, Ljuba Zídková, Jan Vymazal   +7 more
wiley   +1 more source