Journal ArticleDOI
Groundwater recharge: an overview of processes and challenges
Jacobus J. de Vries,Ian Simmers +1 more
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In this article, the authors summarized current understanding of recharge processes, identified recurring rechargeevaluation problems, and reported on some recent advances in estimation techniques for (semi-)arid regions.Abstract:
Since the mid-1980s, a relative explosion of groundwater-recharge studies has been reported in the literature. It is therefore relevant to assess what is now known and to offer further guidance to practitioners involved in water-resource development. The paper summarizes current understanding of recharge processes, identifies recurring recharge-evaluation problems, and reports on some recent advances in estimation techniques. Emphasis is accorded to (semi-)arid regions because the need for information is greatest in those areas – groundwater is often the only water source, is vulnerable to contamination, and is prone to depletion. Few studies deal explicitly with groundwater recharge in temperate and humid zones, because recharge is normally included in regional groundwater investigations as one component of the water balance. The resolution of regional water-balance studies in (semi-)arid areas is, in contrast, often too low to quantify the limited recharge component with sufficient precision.read more
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Journal ArticleDOI
Beneath the surface of global change: Impacts of climate change on groundwater
Timothy R. Green,Makoto Taniguchi,Henk Kooi,Jason J. Gurdak,Diana M. Allen,Kevin M. Hiscock,Holger Treidel,Alice Aureli +7 more
TL;DR: In this article, the authors provide an overview and synthesis of the key aspects of subsurface hydrology, including water quantity and quality, related to global change and potential impacts of groundwater on the global climate system.
Journal ArticleDOI
Quantifying renewable groundwater stress with GRACE
Alexandra S. Richey,Brian F. Thomas,Min-Hui Lo,John T. Reager,James S. Famiglietti,K. Voss,Sean Swenson,Matthew Rodell +7 more
TL;DR: In this paper, renewable groundwater stress is quantified in the world's largest aquifersCharacteristic stress regimes are defined to determine the severity of stress overstressed aquifer are mainly in rangeland biomes with some croplands.
Journal ArticleDOI
Identifying and quantifying urban recharge: a review
TL;DR: The sources of and pathways for groundwater recharge in urban areas are more numerous and complex than in rural environments as discussed by the authors, where buildings, roads, and other surface infrastructure combine with man-made drainage networks to change the pathways for precipitation.
Book
Distributed Hydrologic Modeling Using GIS
TL;DR: In this article, the authors bring together the key ingredients necessary to use GIS to model hydrologic processes, i.e., the spatial and temporal distribution of the inputs and parameters controlling surface runoff.
Journal ArticleDOI
Combined estimation of specific yield and natural recharge in a semi-arid groundwater basin with irrigated agriculture
TL;DR: In this paper, a water budget approach is developed to jointly estimate specific yield and natural recharge in an unconfined aquifer with significant seasonal water table fluctuations Water table fluctuations are due to distinct seasonality in groundwater recharge.
References
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Journal ArticleDOI
Groundwater recharge in arid regions: Review and critique of estimation methods
Glendon W. Gee,Daniel Hillel +1 more
TL;DR: In this paper, Lysimetry and tracer tests are used to evaluate recharge at arid sites, particularly in siting waste disposal facilities, where reliable recharge estimates are needed.
Journal ArticleDOI
Vadose-Zone Techniques for Estimating Groundwater Recharge in Arid and Semiarid Regions
Journal ArticleDOI
Chemical and Isotopic Methods for Quantifying Ground‐Water Recharge in a Regional, Semiarid Environment
Warren W. Wood,Ward E. Sanford +1 more
TL;DR: In this paper, the authors applied solute and isotopic methods for evaluating recharge fluxes, runoff, and spatial and temporal distribution of recharge in the Southern High Plains aquifer of Texas and New Mexico.
Book ChapterDOI
Estimating Soil Water Retention from Soil Physical Properties and Characteristics
TL;DR: In addition, there are increased incidents of groundwater contamination, erosion, and contamination of surface waters from point and nonpoint sources as mentioned in this paper, and there has been an increased effort to develop improved agricultural management practices.