Global ETD Search
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 1877 for “"groundwater"”.
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Estimating groundwater recharge in Jinci karst groundwater system, North China
… 25% of the world’s population relies on karst groundwater as the primary source for drinking and irrigation. However, due to the global climate change as well as population expansion, the contradictory between supply and demand of water resource becomes more and more pronounced. Karst …
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Global Groundwater Risk
Global groundwater is a critical yet often overlooked component of the Earth system, supporting human well-being, ecosystems, and economic development. However, increasing groundwater withdrawal and climate-driven changes in recharge are intensifying groundwater stress worldwide. While this …
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Colloids in groundwater
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1985.
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Barrier island groundwater dynamics
… the U.S. Atlantic and Gulf Coasts and coastal groundwater dynamics influence the availability of freshwater, ecosystem health, pollutant transport, and flooding in these densely populated communities. However, groundwater dynamics, including the aquifer head distribution and subsurface salinity …
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Barrier Island Groundwater Dynamics
… the U.S. Atlantic and Gulf Coasts and coastal groundwater dynamics influence the availability of freshwater, ecosystem health, pollutant transport, and flooding in these densely populated communities. However, groundwater dynamics, including the aquifer head distribution and subsurface salinity …
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The influence of groundwater management strategies on groundwater levels of Namibian savannah aquifers
… potential evaporation rates beyond 2000 mm/year. Groundwater therefore quickly becomes crucial, most of which is located in aquifers in the savannah biome which covers a large part of the country. This is also where most industrialization as well as most farming is practiced. It is however unknown …
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Lithologic Controls on Karst Groundwater Flow, Lost River Groundwater Basin, Warren County, Kentucky
<p>The Lost River Groundwater Drainage Basin in Warren County, Kentucky, is a karst drainage system encompassing 55 square miles (143 square kilometers) developed within the Mississippian St. Louis and Ste. Genevieve Limestones. Near the contact between these two formations are two bedded chert …
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Biodiversity assessment of groundwater-dependent ecosystems in Malta : evaluating copepods as bioindicators of groundwater health
This study investigates the biodiversity of groundwater-dependent ecosystems (GDEs) in Malta, focusing on copepods as bioindicators of groundwater health. Groundwater is essential in sustaining GDEs, yet these ecosystems remain underexplored, particularly in terms of local biodiversity. The aim of …
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The performance of integrated groundwater treatment system in treating shallow groundwater in Parit Raja, Johor
Groundwater can be an alternative source to meet the demand for clean water supply. Unfortunately, lots of contaminant present in groundwater have made it unsafe for domestic use and drinking. Therefore, groundwater should be treated to an acceptable level before consumption. The overall aim of …
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Monitoring pesticides in the soil, groundwater, and submarine groundwater discharge of the Chesapeake Bay Area
… if pesticides were leaching into the shallow groundwater beneath agricultural sites, and if so, to determine a correlation between soil and groundwater pesticide concentrations. The second was to examine the correlation between pesticide concentrations measured by gas chromatography with …
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Monitoring pesticides in the groundwater and submarine groundwater discharge of the Eastern Shore of Virginia
… from the place of application by the shallow groundwater and discharged into the Chesapeake Bay and Atlantic Ocean, and quantify the pesticides if they were transported. One reference (undeveloped) and four agricultural sites were tested over a 11 month period from April 1992 to February 1993. …
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Biological diversity in Icelandic groundwater fissures
… fissures penetrate the aquifer and expose the groundwater within the bedrock. The main objective of the study was to measure the biological diversity in groundwater fissures in Iceland. A large part of the substrate in fissures is rock wall and they often reach great depth. As a result, the …
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Field comparison of groundwater sampling methods
Most ground-water sampling methods require the investigator to purge a large quantity of stagnant water from a well prior to collecting a sample. The use of in situ ground-water sampling devices which minimize or eliminate the need for purging would help to alleviate these problems. In this field …
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Wind power applications to groundwater remediation
"The use of renewable energy systems to power groundwater remediation systems seems like an inherently good idea because of potential cost savings and environmental benefits associated with reduced greenhouse gas emissions. Small wind turbine systems marketed for single residence applications may …
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FORECASTING GROUNDWATER RESPONSES TO DAM REMOVAL
… dissertation contains three papers describing groundwater system responses to dam removals and presents current and new methodologies that managers can use to proactively forecast and mitigate those impacts. The three papers bring together literature, data gathering, data analysis, testing, and …
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FORECASTING GROUNDWATER RESPONSES TO DAM REMOVAL
… dissertation contains three papers describing groundwater system responses to dam removals and presents current and new methodologies that managers can use to proactively forecast and mitigate those impacts. The three papers bring together literature, data gathering, data analysis, testing, and …
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Improving groundwater flow model parametrization techniques
Numerical modeling of groundwater flow is a powerful tool that can assist in hydrogeological analysis and understanding of groundwater system behavior. However, its results are highly dependent on the proper model parameterization (often, at least partially achieved through calibration). The …
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Reliability-Based Groundwater Monitoring System Design
Detection monitoring systems composed of a single row of wells at different spacing and different distances from the contaminant source were evaluated. It is shown that, out of these systems, the optimal detection system is composed of closely spaced wells located near the source of contaminants. …
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