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 14 of 14 for “"Salinity Intrusion"”.
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Control of salinity intrusion caused by sea level rise
… Specific engineering solutions to control salinity intrusion are studied. Structure measures such as construction of tidal barriers, tidal locks, and through long term stream flow augmentation are investigated for their suitability. Quantification of the extent of the impacts is …
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Economic Analysis of Farm Household Perceptions and Preferences for Salinity Intrusion Risk Reduction in the Mekong River Delta
… water use, are a primary cause of sea water intrusion. Climate change-induced sea level rise is a secondary cause. Finally, increased water use due to an expansion in the number of farmers planting three, rather than two, rice crops per year have generally extended the total area of salinity …
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Rising Tides, Falling Harvests: Examining the Effects of Salinity Intrusion on Paddy Production in Lower Mekong Delta, Vietnam
Salinity intrusion, caused by global sea-level rise, is a major threat to paddy cultivation in the Mekong Delta of Vietnam (MKD). Salinity exposure reduces crop yields, increases soil salinity, and exacerbates fresh water scarcity, resulting in altered land use decisions and decreased paddy farming …
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Mechanisms and variability of salt transport in partially-stratified estuaries
… determines the variation of the length of the salinity intrusion and the large-scale density gradient in an estuary. This thesis contains three studies that address salt transport and the salt balance. The variation of salt transport with the depth, the along-channel salinity gradient, and the …
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Mechanisms and variability of salt transport in partially-stratified estuaries
… determines the variation of the length of the salinity intrusion and the large-scale density gradient in an estuary. This thesis contains three studies that address salt transport and the salt balance. The variation of salt transport with the depth, the along-channel salinity gradient, and the …
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Assessment of Sediment and Salinity in the Lower Mekong River Basin
… 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 being built …
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Salt-tolerant rice variety adoption in the Mekong River Delta
… rise and the associated increased incidence of salinity intrusion. This study examines the diffusion of salt-tolerant rice varieties (STRVs) in the MRD that were promoted through Consortium for Unfavorable Rice Environment (CURE) activities. Evidence is found of widespread adoption in …
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The Effects of Varying Fresh Water Discharge on Dispersion in an Estuarine Hydraulic Model of the Lafayette River, Norfolk, Virginia
… of the longitudinal dispersion coefficient. The salinity intrusion method showed that E varied directly with increased discharge. The dynamic relationship method had only a slight increase for the low water slack approximation. The change in moment method displayed irregular results. The values …
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Mechanisms of tidal dispersion in a salt marsh estuary
Dispersion in estuaries sets the length of salinity intrusion and the horizontal mixing rate of waterborne constituents, including larvae, nutrients, sediments, and contaminants. While bulk calculations of dispersion are readily estimated using traditional field measurements, the mechanisms …
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Experience and perceptions of climate change-related hazards, and the dynamics of technology-based adaptations in water use in Bangladesh: the case of Satkhira communities
… survey. Findings revealed that cyclones, floods, salinity intrusion, and waterlogging were the primary climate-related hazards. Climatic factors coupled with anthropogenic activities resulted in disruptions to the freshwater supply, causing severe water scarcity for drinking and irrigation. Locals …
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Mechanisms of Tidal Dispersion in a Salt Marsh Estuary
Dispersion in estuaries sets the length of salinity intrusion and the horizontal mixing rate of waterborne constituents, including larvae, nutrients, sediments, and contaminants. While bulk calculations of dispersion are readily estimated using traditional field measurements, the mechanisms …
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Sea level variations and the impacts along the coastal areas of Nigeria
… These include erosion, flooding and inundation, salinity intrusion, destruction of coastal settlements, deforestation and destruction of the marine ecosystem, increased effect of oil spillage on the Coastal environment, and destruction of infrastructural facilities and industries. Response …
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Transition Pathways and Capabilities of Climate-Induced Migrants: The Case of Ready-Made Garment Workers in Bangladesh
… environmental events such as cyclones, flooding, salinity intrusion, and riverbank erosion. These severe environmental stressors have forced substantial numbers of individuals from both rural and urban areas to migrate towards urban centres in search of sustainable livelihoods. This migration …
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Analysis of the Tidal Range in the Sacramento San Joaquin Delta from 1857 to Present
… implies potential change in tidal velocities, salinity intrusion dynamics, and flood risk within the system, especially in Sacramento.</p>