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 45 for “"erosion and deposition"”.
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Sediment erosion and deposition within mangrove forests
… that sequester carbon in their own biomass and by trapping carbon-rich sediment imported from outside the forest and deposited in the forest. Aboveground biomass, like mangrove pneumatophores (i.e., aerial roots), creates conditions that facilitate sediment deposition by enhancing drag and …
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Sediment Erosion and Deposition Within Mangrove Forests
… that sequester carbon in their own biomass and by trapping carbon-rich sediment imported from outside the forest and deposited in the forest. Aboveground biomass, like mangrove pneumatophores (i.e., aerial roots), creates conditions that facilitate sediment deposition by enhancing drag and …
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Coastal Ocean Morphodynamics and the Resulting Erosion and Deposition: An Analytical Approach
… Environmental conditions, such as climatic and geological controls, are exogenous inputs of the system, which are responsible for geographic variation among coastal oceans. In the coastal ocean system, coastal morphological changes are the results of a series of morphodynamical processes. In …
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MONITORING AND ANALYSIS OF EROSION AND DEPOSITION IN THE DESERT KNOLLS WASH
<p>The goal of this Project was to monitor and measure ongoing changes in the geomorphology of one reach of The Desert Knolls Wash (DKW), an unstable ephemeral stream channel in Apple Valley, California. The DKW flows into the Mojave River just upstream of the Upper Mojave Narrows, a historic site …
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Erosion and deposition of multiple grain sizes in a landscape evolution model
… Institute of Technology, Dept. of Civil and Environmental Engineering, 1998.
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Investigation of Erosion and Deposition of Sand Particles within a Pin Fin Array
… of particulates within both a fully developed and developing pin fin arrays is explored using computational fluid dynamics (CFD) simulations. The simulations are carried out using the LES solver, GenIDLEST, for the fluid (carrier) phase and a Langragian approach for the particle (dispersed) …
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Digital terrain modelling of catchment erosion and sedimentation / Hua Sun
A study was undertaken of erosion and sedimentation in a catchment in South Australia. An erosion and sedimentation model was developed and interfaced with the existing digital terrain models called TAPES-C and THALES, to estimate soil erosion and deposition in Sauerbier Creek catchment.
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Landscape vulnerability to flood impacts in a human-dominated floodplain
… floodplain supports a variety of vegetation and habitat niches and regenerates the landscape through erosion and deposition. However, flooding of human-dominated landscapes are termed ``natural disasters'' due to potential devastating impacts such as the loss of lives and property, …
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A Method for Interpreting the In-Situ Consolidation State of Surficial Seabed Sediments using a Free-Fall Penetrometer
… obtained using these instruments, in both expert and non-expert hands, it is advantageous to establish well defined and repeatable procedures for instrument use and data interpretation. The purpose of this research was therefore to develop and refine methods for the interpretation of FFP data. …
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Areal Modeling of Erosion for Environmental Nonpoint Applications (AMEENA)
Erosion and sediment delivery from upland areas to waterbodies is a major problem impacting water quality in the United States and elsewhere. Measures to reduce these impacts are either targeted at reducing erosion on-site or at reducing delivery of sediment to waterbodies. AMEENA (Areal Modeling …
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Perceiving landscape: designing for the contemplation of material culture through time
… use, collection of marine resources for food and use of natural pigments for symbolling practices. This is revealed by the archaeological excavation of 'midden' deposits - piles of refuse usually situated in the back of cave dwellings left by their ancient occupants. This evidence reveals that …
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Effect of Temperature on Microparticle Rebound Characteristics at Constant Impact Velocity
… can accelerate the deterioration of an engine and reduce the engine’s service life. Understanding particle interactions with the materials used in gas turbines, at representative engine conditions, can improve the design and development of turbomachinery operating in particle laden …
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Hydromorphological evolution of a restored river; a case study in the Upper River Eden catchment
… structural interventions controlling unwanted erosion to river naturalisation and the “re-meandering” of channels back to an historic planform. This is driven by acknowledgement of rivers as dynamic systems that, through restoring erosional and depositional processes and floodplain connection, …
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Equilibrium and transient morphologies of river networks : discriminating among fluvial erosion
We examine the equilibrium and transient morphology of alluvial and bedrock river networks. We apply analytical methods and an iterative model to solve for equilibrium slope-area and texture- area (in alluvial networks) relationships under different tectonic and climatic forcings. Transient …
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GIS Analysis of Channel Changes Due to a Small Dam on the James River, Sw Missouri
… on the effects of small dams on the morphology and hydrology of Ozark-type streams. Ozark-type streams usually occupy winding steep-sided valleys with high bluffs that have incised meanders with bedrock and gravel beds, chert gravel bars, and silty flood plains. A comparison between upstream and …
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Transformative Materiality: Theory Development and Application in Sand, Wind, and Water
… materiality as the primary medium through which landscape architecture is experienced. An original theory, Transformative Materiality, posits that landscape experience may be heightened, making people more aware of and engaged with their surroundings, if design encourages the changing of materials …
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Sediment Control In Alluvial Rivers Using Simulation-Based Optimization
During storm events in rivers and watersheds, the peak runoff may creates excess erosion and deposition in channels or river reaches and cause changes in flow characteristics and fluvial geomorphology. Severe sediment erosion such as in-stream sever bed and bank erosion or gullying can threaten the …
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The Urban Floodscape: Revealing, Carving, and Placing the Historic Klingle Ford Road
… infrastructure to alleviate any damage. Although erosion and flooding can be detrimental to our environment, a by-product of the damage is wild nature, offering health and mental benefits and possibly the key to understanding resiliency. Consequently, our perception of nature changes when it …
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Laboratory experiments on alluvial cover in mixed bedrock-alluvial meandering channels and on the formation and evolution of supraglacial meltwater meandering streams
Rivers and other channels containing liquid flow develop meandering patterns over different media and across a broad range of scales. For example, alluvial rivers form and evolve by erosion and deposition of sediment, and by interactions with riparian vegetation. Meandering channels also form in …
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Evaluation of Coupled Erosional Processes and Landscape Evolution in the Teton Range, Wyoming
The evolution of mountain landscapes is controlled by complex interactions between large-scale tectonic, surficial and climate conditions. Dominant processes are attributed to creating characteristic features of the landscape, but topographic features are the cumulative result of coupled surficial …
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