Results 41 to 50 of about 346,878 (169)
Using 14C and 3H to understand groundwater flow and recharge in an aquifer window [PDF]
Hydrology and Earth System Sciences, 2014 Knowledge of groundwater residence times and recharge locations is vital to the sustainable management of groundwater resources. Here we investigate groundwater residence times and patterns of recharge in the Gellibrand Valley, southeast Australia, where
A. P. Atkinson +5 more
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Multi-scale Digital Twin: Developing a fast and physics-informed surrogate model for groundwater contamination with uncertain climate models [PDF]
arXiv, 2022 Soil and groundwater contamination is a pervasive problem at thousands of locations across the world. Contaminated sites often require decades to remediate or to monitor natural attenuation. Climate change exacerbates the long-term site management problem because extreme precipitation and/or shifts in precipitation/evapotranspiration regimes could re ...
arxiv
Urban ScienceThe interaction between groundwater and urban environments is a growing concern for many rapidly urbanizing cities around the world, affecting both recharge and flow, since impervious surfaces reduce infiltration by increasing runoff, whereas over ...
Jayashri Dutta +2 more
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One million year old groundwater in the Sahara revealed by krypton-81 and chlorine-36 [PDF]
, 2004 Measurements of 81Kr/Kr in deep groundwater from the Nubian Aquifer (Egypt) were performed by a new laser-based atom-counting method. 81Kr ages range from \~2x10^5 to ~1x10^6 yr, correlate with 36Cl/Cl ratios, and are consistent with lateral flow of groundwater from a recharge area near the Uweinat Uplift in SW Egypt.
arxiv +1 more source
Water Supply, 2022 The management of available groundwater resources is vital in arid and semi-arid regions. Artificial recharging should be integrated with groundwater resources to maintain long-term water sustainability.
Majed Ibrahim, Amjed Shatnawi
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Journal of Groundwater Science and EngineeringGroundwater recharge is a critical hydrologic component that determines groundwater availability and sustainability. Groundwater recharge estimation can be performed in a variety of ways, ranging from direct procedures to simulation models.
Shamla Rasheed, Marykutty Abraham
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Monitoring of saline tracer movement with vertically distributed self-potential measurements at the HOBE agricultural test site, Voulund, Denmark [PDF]
Journal of Hydrology 521 (2015) 314-327, 2015 The self-potential (SP) method is sensitive to water fluxes in saturated and partially saturated porous media, such as those associated with rainwater infiltration and groundwater recharge. We present a field-based study at the Voulund agricultural test site, Denmark, that is, to the best of our knowledge, the first to focus on the vertical self ...
arxiv +1 more source
Assessment of Groundwater Recharge in Agro-Urban Watersheds Using Integrated SWAT-MODFLOW Model
, 2020 Numerical models are employed widely to evaluate the hydrological components of a watershed but, traditionally, watershed models simplify either surface or subsurface flow module.
B. Yifru +3 more
semanticscholar +1 more source
Groundwater recharge estimation using empirical methods from rainfall and streamflow records
Journal of Hydrology: Regional Studies, 2021 Study region: Gumara and Ribb watersheds, Abbay Basin, Ethiopia. Study focus: In this paper, an attempt was made to estimate groundwater recharge from streamflow and rainfall records. The groundwater recharge was estimated by different empirical methods,
Tesfa Gebrie Andualem +4 more
doaj
HydroResearch, 2022 The demand for freshwater has continuously increased in the arid areas of Ewaso Ng'iro – Lagh Dera basin, Kenya. This study aimed to and mapped areas of potential groundwater recharge in the basin by integrating factors that influence groundwater ...
Tabitha Wambui Githinji +3 more
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