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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 25 for “"Groundwater Storage"”.
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A Geochemical Assessment of Potential Groundwater Storage Locations within the Yakima River Basin
… One of seven elements outlined in this plan is groundwater storage. The idea is to take available water during high spring flows and store it in the subsurface. The water will then be used to increase stream flows and decrease stream water temperatures during the summer months. A main challenge …
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Drainage Timescale Estimates and Storage Change Analysis on A Basin Scale
The groundwater travel time depicts the characteristic timescale of the catchment drainage process and is therefore also known as drainage timescale (K). Catchment drainage timescale can be estimated empirically from recession flow analysis as well as from hydraulic theory. Applicability of is …
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Assessing long-term conservation of groundwater resources in the Ogallala Aquifer Region using hydro-agronomic modeling
Groundwater is vital for domestic use, municipalities, agricultural irrigation, industrial processes, etc. Over the past century, excessive groundwater depletion has occurred globally and regionally, notably in arid and semi-arid regions, often due to providing irrigation water for crop …
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Water balance investigations of groundwater depletion in Asia : information needs and uncertainty analysis
… regions of the world, and Asia in particular, groundwater is a major source of irrigation water. Over-pumping of groundwater aquifers has depleted storage in some areas. Quantification of the degree to which groundwater is being used unsustainably is critical to our understanding of the …
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Representation of water table dynamics in a land surface scheme : observations, models, and analyses
… water balance analysis has indicated that the groundwater storage and groundwater runoff are significant terms in the monthly and annual water balance for areas with a shallow water table. However, most of the current land surface parameterization schemes lack any representation of regional …
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Learning and flexibility for water supply infrastructure planning under diverse uncertainties
… in short-term in rainfall and runoff, groundwater storage, and long-term climate change impacts water supply forecasts. Population and economic growth drive urban water demand growth at rapid but uncertain rates. Overbuilding infrastructure can lead to expensive stranded assets and …
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Created Ponds as Indicators of Restored Sierra Nevada Meadow Hydrology
… with water, creating a series of ponds. Elevated groundwater tables and stream flooding return natural function and wet-meadow vegetation. Little research has examined the impacts of these anthropogenic ponds on the hydrology of meadows, and ponds may represent a potential loss in the water budget …
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The hydrogeology of the Oman Mountains
… is an arid area almost entirely dependent upon groundwater recharged by highly sporadic rainfall. Precipitation estimates are hampered by a lack of any reliable altitude-rainfall relationship. Below 700 m there is no statistically significant relationship. The isotopic composition of groundwater …
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Water resources decision making using meta-heuristic optimization methods
… particularly to optimally design and operate groundwater storage and recovery projects. The effort included developing an integrated simulation-optimization management model for complex aquifer recharge/extraction operation considering water quality transformation. The research demonstrated …
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Characterization of a hydraulically induced bedrock fracture
… and widens existing bedrock fractures, allowing groundwater storage to increase. Researchers have studied the behavior of fractured-rock aquifers for decades, but little has been published on the hydraulic and mechanical properties of hydraulically enhanced fractures. In this study, a …
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Remote Sensing of 21st Century Water Stress for Hazard Monitoring in California
… lost during these two decades is due to intense groundwater overdraft of the Central Valley Aquifer. This groundwater overdraft has led to poroelastic compaction of the aquifer system and subsidence of the land surface. Water mass loss also causes elastic deformation of the solid Earth, an …
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Quantifying the contribution of bank storage due to an alteration in stream stage
… reduce risks of flooding while providing water storage for municipal and agricultural uses has resulted in the disconnection of rivers from their floodplains. An important and often neglected outcome of this detachment is the loss of a plethora of important ecosystem services. This research was …
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Impacts of climate change on stream hydrologic and geochemical fluxes
… snow. Precipitation shifts are decreasing total groundwater recharge, ultimately changing the way that groundwater is stored and transported before it contributes to streams. However, hydrologists don’t currently have the data needed to constrain or model how subsurface flowpaths are changing, …
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Evaluating surface water–groundwater interactions in floodplains using SWAT+ and gwflow
… services. Within floodplains, surface water-groundwater exchange plays an important role in facilitating biogeochemical processing and can have a strong influence on hydrology through infiltration or discharge of water. These functions can be difficult to assess due to the heterogeneity of …
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Estimating Sudan Nile Water Withdrawals During the 20th Century Using a Water Balance Approach
… between 1 and 4 km³ yr ⁻¹) may be lost to groundwater storage, specifically the Nubian sandstone aquifer. It was found that, as of 2005, Sudan’s total water withdrawals, estimated to be within the range of 13.5 to 17.5 km³ yr ⁻¹ are close to the threshold of consuming its entire share of …
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The prospects for stormwater harvesting in Cape Town, South Africa using the Zeekoe Catchment as a case study
… winter rainfall. Due to the mismatch, balancing storage was required in the range of 20 - 30% of the mean annual stormwater volume estimated at 18 Mm3 . The 61 stormwater ponds in the Zeekoe Catchment were assessed to determine the capacity to provide the required storage. Since the stormwater …
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Observing Drought-Induced Crustal Loading Deformation Around Lake Mead Region via GNSS and InSAR: A Comparison With Elastic Loading Models
… a water crisis and negatively affecting soil and groundwater storage across the region. Water deficits have further reduced the mass of water loading on the Earth's crust, causing it to elastically deform. I observe this process from the ground by recording the vertical land motion occurring at …
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Groundwater Banking in Imperial Irrigation District: Planning for Future Water Scarcity on the Colorado River
… regional water supply portfolio by developing groundwater storage and banking of Colorado River water. Specifically, IID intends to develop the capability to store any surplus water to which it is entitled (within its 3.1 MAF) in groundwater storage banks for later use. For any given year in …
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Investigating Telogenetic Karst Aquifer Processes and Evolution in South-Central Kentucky, U.S., Using High-Resolution Storm Hydrology and Geochemistry Monitoring
… comparison to historical data is used to assess groundwater storage and aquifer complexity.</p> <p>The annual data reveal both seasonal and storm event patterns in geochemical and hydrologic conditions of the aquifer. The data indicate distinct responses to storm events. These responses, as well …
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Determination of coefficient of storage by use of gravity measurements.
… develop a method to determine the coefficient of storage of a water-table aquifer by correlating change in gravitational field intensity with change in groundwater storage. In theory, this purpose may be accomplished by modifying the Bouguer slab equation to coefficient of storage equals 78.3 …
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