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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 21 for “"saltwater intrusion"”.
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Hydrodynamics of Saltwater Intrusion in Heterogeneous Coastal Aquifers
Saltwater intrusion (SWI) poses a significant threat to the livelihood of populations in coastal zones who are dependent on freshwater extracted from aquifers near to the sea. The sustainable management of coastal aquifers is crucial to prevent the degradation of freshwater resources by the …
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Bayesian Saltwater Intrusion Prediction and Remediation Design under Uncertainty
… in a hierarchical structure and conduct BMA for saltwater intrusion prediction. A BMA tree of models is developed to understand the impact of individual sources of uncertainty and uncertainty propagation on model predictions. The uncertainty analysis using HBMA leads to finding the best modeling …
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Oligohaline wetland response and recovery following storm-driven saltwater intrusion in coastal Louisiana
… Here I examined the impacts of storm-induced saltwater intrusion and post-intrusion conditions on the structure and growth of an oligohaline wetland plant community, and on wetland soil biogeochemistry and conditions during and after saltwater intrusion. In the greenhouse, a six-week saltwater …
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Measurement of Soil and Water-Quality Parameters to Understand Subsurface Transport Processes
… such as excess rainfall and/or draught cycles on saltwater intrusion processes with a focus on managing freshwater resources in island aquifers. As part of this effort, we used a combination of laboratory experiments and numerical simulations to study the impacts of changes in rainfall patterns on …
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The combined effects of salinity and sulfide on the growth and physiology of the freshwater marsh plant Pancium hemitomon J.A. Schultes
Vegetative response to saltwater intrusion into coastal freshwater wetlands is governed by the combined effects of increased salinity and porewater sulfide concentrations. I conducted a series of experiments to address the primary hypothesis that growth of Panicum hemitomon is adversely affected by …
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Caratterizzazione idrogeologica avanzata dell’acquifero alluvionale della piana costiera di Muravera
… can lead to over-exploitation and seawater intrusion phenomena. Saltwater intrusion is a critical socio-economic and environmental issue in the coastal plain of Muravera, south-eastern Sardinia (Italy). Since the early fifties the natural hydrodynamic equilibrium between groundwater, …
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Assessing Aquifer Vulnerability to Seawater Intrusion : Application of the GALDIT-Index to the Emilia-Romagna Coastline.
Saltwater intrusion (SWI) in coastal aquifers due to excessive groundwater withdrawals (for civil, agricultural and industrial purposes) has become a major concern affecting a large number of coastal aquifers worldwide. This trend is expected to grow in the very near future due to the expected …
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Sedimentology and Shallow Groundwater Responses of a Coastal Marsh Along a Salinity Gradient: A Case Study In Grand Bay National Estuarine Research Reserve, Mississippi
… and relative sea level rise is resulting in saltwater intrusion and inundation of coastal marshes. This study investigates factors affecting marsh hydrology, including sediment composition, seasonal variability, and coastal storms in Grand Bay National Estuarine Research Reserve (NERR) near …
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THE IMPACT OF SEA-LEVEL RISE ON COASTAL WETLANDS USING IN-SITU MESOCOSM EXPERIMENTS, LANDSCAPE MODELING, AND TRADITIONAL ECOLOGICAL KNOWLEDGE MAPPING
… to coastal wetlands as increased inundation and saltwater intrusion can lead to lowered productivity, decreased biomass, and plant death – and ultimately land loss. In chapter one, I detailed the interactive effects of inundation and nitrogen on two commonly found saltmarsh species,<em> Spartina …
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Artificial Recharge of Groundwater with Recycled Municipal Wastewater in the Pajaro Valley
… facing groundwater depletion and rapid seawater intrusion. Artificial recharge of recycled water into groundwater aquifers in other locations has proven to be an effective method of mitigating groundwater depletion and seawater intrusion while providing a sustainable water supply. Two methods of …
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Investigating the Impact of Aquifer Long Term Replenishment on the Potomac Aquifer System in Virginia
… communities are at risk of wells running dry, saltwater intrusion, and land subsidence. The Sustainable Water Initiative for Tomorrow (SWIFT) project is an aquifer long-term replenishment (ALTR) project that uses continuous recharge into the multi-layered confined aquifer system to restore the …
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Swamp ecology in a dynamic coastal landscape: an investigation through field study and simulation modeling
… flooding, nutrient and sediment deprivation, and saltwater intrusion have been implicated as probable causes of coastal swamp deterioration in the Mississippi Delta. An understanding of the interactive effects of these factors is required to enable successful planning of wetland restoration …
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Interactions of insect herbivory and multiple abiotic stress agents on two wetland tree species in southeast Louisiana swamps
… impounded by manmade structures, impacted by saltwater intrusion, and are sinking, resulting in more frequent flooding for longer periods. Additionally, defoliation of the two dominant trees, baldcypress (Taxodium distichum L. Rich) and water tupelo (Nyssa aquatica L.), occur frequently during …
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Flooding as Remembering: A Trickster’s Guide to Fugitive Ecology, Revolutionary Recall, and Speculative Worldbuilding Beyond the Plantationocene
… induced land loss, flooding, storm surge, and saltwater intrusion influenced by extractivist industries. Through revolutionary recall, reclaiming the logics of re-worlding established by Juan San Malò’s band of Maroons offers pathways to resist the intensifying threats of climate change that …
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Assessment of Sediment and Salinity in the Lower Mekong River Basin
… like nutrient deficiency from sediment and saltwater intrusion. The decrease in sediment deposition in the Mekong basin is caused by a number of factors. In China, Lao PDR, and Vietnam, the hydropower generation from dams has improved people's overall living standards, leading in more dams …
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GEOLOGICAL LEGACY OF A HISTORIC WAVE-DOMINATED TIDAL INLET, CENTRAL NEW JERSEY
… with implications for hydrologic structure (saltwater intrusion) and stability of the barrier.
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Influence of beach hydrodynamics on saltwater transport and oil persistence in beaches
… role in both aquifer and the open water. Saltwater intrusion could prevent utilization of groundwater for either drinking water or irrigation. In addition, the flux of solutes, such as nutrients, from inland groundwater sources plays an important role in shoreline ecology, especially in …
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Coastal Erosion Hazard in Bangladesh: Space-time pattern analysis and empirical forecasting, impacts on land use/cover, and human risk perception
… cyclones, tsunami, floods, coastal erosion, and saltwater intrusion. These hazards cause extensive social, ecological, economic, and human losses. Continued climate change and sea-level rise is expected to substantially impact the people living in coastal areas. Sea level rise poses serious …
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Hydrodynamic and sediment transport numerical modelling and applications at Tairua Estuary, New Zealand
… a more youthful estuary. It is also likely that saltwater intrusion was more frequent with increased sea level. However, the influx of sediment would also compensate for some of the sea level rise, and reduce the tendency for flood dominance.
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The Mzingazi gauging weir and its effects on the fish and macrocrustacean communities of Lake Mzingazi
… demand for water. Due to potential salt-water intrusion via groundwater from the saline Mzingazi River into the lake, another weir, namely the Saltwater Barrier, was built 1.4 km downstream of Lake Mzingazi to limit saltwater intrusion into the lake. The Mzingazi weir largely prevented the …
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