Results 51 to 60 of about 884,796 (168)

A review of numerical methods for flow and transport modeling in the vadose zone

Vadose Zone Journal, Volume 25, Issue 5, September/October 2026.
Abstract Accurate modeling of subsurface flow and transport processes in the vadose zone, governed by the Richards equation and advection‐dispersion equation, respectively, poses major numerical challenges due to the strong nonlinearity of the governing partial differential equations, spatial heterogeneity and anisotropy of the media parameters, and ...
Shruti Jain, Saumava Dey, B. R. Chahar
wiley   +1 more source

Quantifying Processes Governing Nutrient Concentrations in a Coastal Aquifer via Principal Component Analysis

Hydrology, 2018
Submarine groundwater discharge (SGD) is an important source of nutrients to coastal ecosystems. The flux of nutrients associated with SGD is governed by the volumetric discharge of groundwater and the concentrations of nutrients in groundwater within ...
Alanna L. Lecher, Joseph Murray, Adina Paytan   +2 more
doaj   +1 more source

Coastal Nitrogen, Phosphorus, and Silicon Sources: Integrating Land, Sea, and Human Inputs

Global Biogeochemical Cycles, Volume 40, Issue 9, September 2026.
Abstract Land‐based human activities have greatly increased inputs of nutrients (nitrogen [N] and phosphorus [P]) to the coastal zone, while also decreasing silicon (Si) export. Here we present a novel synthesis of N, P, and Si sources to coastal waters and use that data set to evaluate: (a) the amount, global spatial distribution, and proportion of N,
John A. Harrison, Arthur H. W. Beusen, Lex (A.F.) Bouwman, Junjie Wang, Xiaochen Liu   +4 more
wiley   +1 more source

Review of Research Progress on the Influence of Groundwater Discharge on Seabed Stability

Journal of Marine Science and Engineering
Submarine groundwater discharge (SGD) refers to the flow of groundwater that enters seawater through the seabed surface at the edge of the coastal shelf.
Zhentian Jia, Hongxian Shan, Hanlu Liu, Zhengrong Zhang, Long Jiang, Siming Wang, Yonggang Jia, Yongzheng Quan   +7 more
doaj   +1 more source

Modeling the Potential of Submarine Groundwater Discharge to Facilitate Growth of Vibrio cholerae Bacteria

Hydrology, 2019
Submarine groundwater discharge (SGD), the discharge of terrestrial groundwater to the ocean, can govern the coastal benthic environment. Bacteria such as Vibrio cholerae inhabit coastal waters and sediments, whose growth can be influenced by SGD.
Felix Vollberg, Marc Walther, Astrid Gärdes, Nils Moosdorf   +3 more
doaj   +1 more source

Biogeochemical and Hydrological Drivers of Heterogeneous Nutrient Exports From Subterranean Estuaries

Frontiers in Marine Science, 2021
Submarine groundwater discharge (SGD) to coastal zones contributes terrestrial freshwater and nutrients that may support harmful algal blooms (HABs).
Andrea J. Pain, Andrea J. Pain, Jonathan B. Martin, Caitlin R. Young, Caitlin R. Young   +4 more
doaj   +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

BRIEF RESEARCH HISTORY AND MODERN KNOWLEDGE OF THE PHENOMENON OF SUBMARINE GROUNDWATER DISCHARGE ON THE SEA AND OCEAN SHELVES

Геологія і корисні копалини Світового океану, 2022
Groundwater is widely spread both on land and under seas and oceans. Today, hydrogeologists and oceanologists recognize the potentially significant contribution of submarine groundwater discharge to coastal areas. The term submarine groundwater discharge
Iemelianov V.O.
doaj   +1 more source

Abiotic Iron Precipitation and Its Influence on Groundwater Flow in Subterranean Estuaries Under Tidal Forcing

Water Resources Research, Volume 62, Issue 8, August 2026.
Abstract Within subterranean estuaries (STEs), Fe2+ from freshwater is oxidized by O2(aq) from seawater to form Fe precipitates and low‐permeability zones (“Fe curtains”). Tidal fluctuations generate an upper saline plume (USP) above the saltwater wedge (SW), enhancing freshwater–seawater mixing and associated chemical reactions.
Tao Wang, D. A. Barry, Chenming Zhang, Ling Li   +3 more
wiley   +1 more source

Parallels between stream and coastal water quality associated with groundwater discharge.

PLoS ONE, 2019
Groundwater-surface water interactions drive water quality in both streams and the coastal ocean, where groundwater discharge occurs in streams as baseflow and along the coastline as submarine groundwater discharge (SGD).
Trista McKenzie, Henrietta Dulai, Jennet Chang   +2 more
doaj   +1 more source