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 8 of 8 for “"surface water modeling"”.
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Evaluating Shallow-Flow Rock Structures as Scour Countermeasures at Bridges
… in a two-phase effort beginning with numerical modeling and ending with field verification of model findings. As part of phase one, two finite element meshes were created in Surface-water Modeling Software (SMS) and analyzed with FESWMS-2DH. Second, field studies were conducted and a preliminary …
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Improving Steering Module Efficiency for Incremental Loading Finite Element Numeric Models
… numeric models to calculate and predict water levels and current patterns for rivers, bays, and other bodies of water. This computation often involves an iterative process known as incremental loading that can cause frustration and consume a lot of time. Although the steering module in …
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Water quality and sedimentation implications of installing a hydroelectric dam on the Río Baker in Chilean Patagonia
… that newly installed impoundments alter the water quality of the original riverine system. Often temperatures, dissolved oxygen levels, and sediment loads in the reservoir and outflowing water are entirely different from those in the original free-flowing river; these differences alter …
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Refining and Expanding the Feature Stamping Process
… the input terrain data represents the earth's surface. Modelers obtain terrain data for a study area by performing surveys or by gathering historical survey data. If a modeler desires to create a predictive model to simulate the addition of man-made features such as channels, embankments and …
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Hydrodynamic and sediment transport modeling of deltaic sediment processes
… River and the delta was developed, using the Surface Water Modeling System (SMS) software package. Calibration and validation of the model were performed, using data collected during field surveys and from available Atchafalaya River archived flow, suspended sediment, and dredging records. In …
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Incipient motion of mixed sediment load on the Rio Chama
… to adjust. When these are modified to manage water resources for human needs, the ecosystem that relied on them is often negatively impacted. The river that once knew a specific dynamic equilibrium is forced to change. The result is usually changes in hydraulic geometry, a decrease in …
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In the Zone: the Effects of Soil Pipes and Dunes on Hyporheic and Riparian Zone Hydraulics and Biogeochemistry
… excess nitrate and other pollutants into our waterways. Here, this dissertation seeks to understand the physical and biogeochemical processes which attenuate pollutants in stream corridors. The focus is hyporheic zones which form the interface between surface water and groundwater below and …
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Virtual water storage and flows within the continental United States
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-12-01