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 257 for “"Water Levels"”.
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Interactive embankment: topography of fluctuating water levels and human interaction
… surface or structure, mediate between land and water, potentially change the landscape, restore the ecosystem, and promote public access to a waterfront. It is a reflection of societal values in direct dialogue with the forces of nature. Water level fluctuations reflect changes in river …
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The importance of water levels in the management of the Klein River Estuary, Hermanus
… are: uncertainty about appropriateness of water levels, marine sand influx and accumulation, flooding of low lying developments, flooding of agricultural lands, decrease in fish catches and indecision about the ideal position of the estuary mouth in the sand berm. This study concentrates …
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SARIMA Short to Medium-Term Forecasting and Stochastic Simulation of Streamflow, Water Levels and Sediments Time Series from the HYDAT Database
… forecasting and simulation of streamflow, water levels, and sediments in Canada using Seasonal Autoregressive Integrated Moving Average (SARIMA) time series models. The methodology can account for linear trends in the time series that may result from climate and environmental changes. A …
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SENSITIVITY ANALYSIS OF WATER LEVELS AND WAVES IN THE CARMEL RIVER STATE BEACH TO CHANGING BOUNDARY AND MORPHOLOGICAL CONDITIONS IN DELFT3D: CARMEL RIVER LAGOON
… tidal energy had a larger impact on the lagoon water level and conversely, when river discharge is maximized, despite the wave height, river discharge dominates the processes affecting water level in the lagoon. Both increased discharge and increased wave heights increased the mean water level …
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Impacts of Climate Change and Multiple Stressors on Water Levels and Phytoplankton in Small Temperate Lakes Within the Great Lakes Region Over Three Decades
Changes in climate influence water quantity and water quality through hydrological processes, thermal regimes, and ice phenology. This thesis investigates the impacts of climate change and additional anthropogenic stressors on water quantity and quality in two study areas with minimal anthropogenic …
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Hydraulic modelling of Chicago Area Waterways System (CAWS) to assess the impact of hydrologic separation on water levels and potential flooding during extreme rainfall events in Chicago, Illinois
… (HEC—RAS) was implemented for the Chicago Area Waterways System (CAWS) for two configurations: i) current conditions, and i) physical separation with barriers. Hydrologic conditions were those for the 100-year storm event observed in September 2008. Combined Sewer Overflow hydrographs at +150 …
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The Investigation Of Okhissa Dam Using A Real-Time Monitoring System
… side. It is presumed these high piezometric water levels resulted from pressure in the aquifer due to communication from Okhissa Lake. The goal of this investigation is to determine if the reservoir is influencing the piezometric water levels and how these water levels can be used to evaluate …
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Evaluating a Process-Based Mitigation Wetland Water Budget Model
Correctly predicting water levels is key to the success of created wetlands. The Pierce method is a commonly used technique for modeling and designing mitigation wetlands that assumes minimal groundwater interaction with the wetland. This technique for mitigation wetland design relies primarily on …
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Stochastic Analysis Of Storm-Surge Induced Infrastructure Losses In New York City
… storm surge patterns and for estimating possible levels of damage from future events in order to develop planning strategies to mitigate against possible damage. The first step is to describe the frequency of past storm surge events in New York City from 1920 to 2012 and determine a probability …
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Development of a Groundwater Flow Model for Hungry Valley, Washoe County, Nevada
… the community is dependent on sustainable groundwater development. Previous hydrogeologic assessments and pumping tests have consistently concluded that the aquifers are of limited extent. The aquifers are characterized by low transmissivities with storativity values indicating the aquifers to be …
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Water Level Quantiles Of Devils Lake Under Down-Scaled Gcm Predictions Using A Coupled Hydro-Climatic Model
… lake. Future hydrology of the basin and lake levels of Devils Lake are simulated using the weather samples obtained from several downscaled GCM runs under varying scenarios due to anthropogenic modifications and the resulting composition of the atmosphere. 100 traces of future water levels of …
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Ground water-surface water interaction of Rio Grande Biopark area, Albuquerque, New Mexico
Ground water and surface water are typically considered as separate entities, but all surface water features interact with ground water in different ways. Better understanding of ground water-surface water interaction is important for effective land and water management. This study investigated the …
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Coastal water level prediction: a comparative study of statistical and machine learning techniques for time series forecasting
… The application of these tools to coastal water level forecasting generates insightful predictions for operational use in flood management, as well as a deeper understanding of the influencing factors. Many existing models and projects focus on long-term trends in coastal water levels …
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Effects of Introduced Muskrat Populations on Emergent Vegetation in South Dakota Wetland
Muskrats (Ondatra zibethicus) and fluctuations of water level are the main forces controlling wetland vegetation cover and composition on a long term basis. IN the absence of artificial water control structures, properly managed muskrat populations are the most natural, long term means of …
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Investing Hysteresis in Floodplain Dynamics of Lakes in the Middle St. Johns River Using Sentinel-1 SAR Imagery
… differences in inundated areas at equivalent water levels during each stage of the flood event. The findings aim to enhance flood monitoring systems by improving flood extent mapping throughout changing water levels, which is crucial for accurate flood forecasting and effective response …
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FROG DECLINES: EXPLORING CONNECTIONS AMONG CLIMATE CHANGE, IMMUNITY AND DISEASE
… particular how climate-induced changes in pond water levels may influence amphibian immune systems. We examined immune development and function (thymus growth, antibody production and skin graft rejection) in Meadow treefrogs (Hyla pseudopuma), a declining species in the MCFP, when tadpoles …
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Monitoring Hydrology in Created Wetland Systems with Clayey Soils
… of monitoring well design parameters on observed levels of saturation in created wetlands with high-clay subsoils at the Cedar Run 3 mitigation bank site in Prince William County, Virginia. Three complete replications of an electronic central array and an associated surrounding array of manually …
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Characterisation of natural radioactivity in Karoo Basin groundwater prior to shale gas exploration
… data on natural radioactivity in Karoo groundwaters. The Karoo Basin groundwater radiological baseline developed through this study could serve as a reference to research potential future radiological contamination effects due to hydraulic fracturing. The major naturally occurring radioactive …
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