Global ETD Search
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Showing 1 to 20 of 20 for “"coastal processes"”.
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Application of Remote Sensing Techniques for the Study of Neotectonic Deformation, Subsidence and Coastal Processes
… for studying various natural and anthropogenic processes around the world. This work utilizes data collected from spaceborne and airborne platforms to study the effects of subsidence, neotectonic deformation, and coastal change. The first study covers subsidence and neotectonic deformation in …
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Beach Scenic Beauty versus Human Pressures and Natural Coastal Processes: an Innovative Approach with Case Studies from Spain, Bulgaria, France and Italy
… relevance. Today, barely 15% of worldwide coastal sceneries remain intact from human intrusion. It is also estimated that roughly half of sand beaches may disappear by 2100 because of climate change consequences (coupled with the ongoing urbanization process). In others words, natural …
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On a Sea of Sand: A Comparative Analysis of the Challenges to Beached Wreck Site Stability and Management
… forgotten features of the physical and cultural coastal landscape. These limited and nonrenewable resources play an important informational role as tangible pieces of maritime heritage that also document dynamic coastal processes. Shipwreck remains in the beach zone are highly susceptible to …
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Coastal evolution on Earth and Titan
… of a shoreline can provide insight into the processes that have modified the coast. This thesis investigates how coastal processes can leave fingerprints on the morphology of a coast in sandy environments (barrier islands) and detachment-limited environments (rocky coasts of Earth and …
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Implementation plan for the Stellenbosch Wave Energy Converter on the South-West Coast of South Africa
… of SWEC devices carries significant threat to coastal process, marine flora and fauna, ecosystem dynamics and functioning. Mitigation is required to be incorporated into the design and layout of the plant particularly to conserve wave energy to drive coastal processes. A considerable number of …
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Advancing Arctic coastal erosion measurement and monitoring through UAV-SfM, satellite imagery, and object-based image analysis
… to further our understanding of Arctic coastal processes, specifically, volumetric erosion, and broad scale delineation of multiple shoreline proxies for monitoring and quantification of erosion. UAV-SfM provides aerial and DSM imagery at unprecedented spatial and temporal resolution …
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A Novel Method of Determining Sediment Transport using Ultrasonic Wireless Sensors
… rise has resulted in increased concerns about coastal erosion. Therefore, monitoring of the shoreline, coastal processes and in particular sediment movement, given the dynamic nature of coastal systems, is vital to ensure that erosion response is appropriate. Ideally, monitoring should take …
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Improvements in the numerical modelling of wake effects for wave energy converter farms
… the WEC farm is important since it affects coastal processes and potentially marine activities located near by. Thus it will be mandatory to accurately quantify the local changes generated by the presence of a WEC farm and assess the significance of its impact. To address these concerns, the …
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Understanding the dynamics of a mixed sand and gravel coastline: a multi-method approach.
… modelling techniques to understand the beach and coastal processes at the site. Analysis undertaken in this study provided insights of differing shoreline response to the same offshore drivers. Results show a combination of variable geomorphology, a bi-modal wave climate and active nearshore …
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Spatio-temporal analysis of coastal sediment erosion in Cape Town through remote sensing and geoinformation science
Coastal erosion can be described as the landward or seaward propagation of coastlines. Coastal processes occur over various space and time scales, limiting in-situ approaches of monitoring change. As such it is imperative to take advantage of multisensory, multi-scale and multi-temporal modern …
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EPIBENTHIC INVERTEBRATES AND JUVENILE CHUM SALMON (ONCORHYNCHUS KETA) PREY AVAILABILITY ALONG AN ECO-ENGINEERED SHORELINE: A CASE STUDY AT THE SEAWALL IN SEATTLE, WASHINGTON
Shoreline development can alter coastal processes resulting in habitat loss and species assemblage shifts, but eco-engineered enhancements, or modifications to hard structures that mimic or support ecological processes, may improve ecosystem functioning and benefit shoreline dependent species. …
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Geological mapping of the inner shelf off Cape Town's Atlantic Seaboard, South Africa
… sandy pocket beaches. A narrow, low-lying coastal plain (marine terrace) in the north merges with coastal cliffs further south. The geomorphology and sedimentology of the coast are closely linked to the underlying geology, influencing the shape of coastal embayments and promontories, as …
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Effect of mass wasting on soil organic carbon storage and coastal erosion in permafrost environments
… of carbon dioxide and methane to the atmosphere. Coastal erosion, amplified through a decrease in Arctic sea-ice extent, may also mobilise SOC from permafrost. Large expanses of permafrost affected land are characterised by intense mass-wasting processes such as solifluction, active-layer …
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Convexity, Concavity, and Human Agency in Large-scale Coastline Evolution
… to coastline change by manipulating various coastal processes, consequently affecting long-term, large-scale coastline shape change. Especially in the context of changing climate forcing and increasing human presence on the coast, the interaction of the human and climate-driven components of …
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Geomorphologic evolution of a rapidly deteriorating barrier island system with multiple sediment sources: Eastern Isles Dernieres, Louisiana, 1887 to 2006
<p>Trinity, East, and Wine Islands make up the eastern half of the Isles Dernieres barrier arc in south-central Louisiana. Formed following the abandonment of the Lafourche delta complex, subsidence and storm erosion have led to rapid deterioration of the system. Since 1887, the land area of the …
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The Observation, Modeling, and Retrieval of Bio-Optical Properties for Coastal Waters of the Southern Chesapeake Bay
… to monitor the water quality and biogeochemical processes from remote sensing of the coastal waters in the southern Chesapeake Bay and coastal Mid-Atlantic Bight region (MAB) dominated by Case 2 waters. For this purpose, knowledge of the relationship between remote sensing reflectance …
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The modification of arctic permafrost coastlines
… Arctic will likely result in greater rates of coastal retreat. An increase in coastal erosion would result in dramatic increases in the volume of sediment, organic carbon and contaminants to the Arctic Ocean. These in turn have the potential to create dramatic changes in the geochemistry and …
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Stable isotope ecology of South African kelp forests
Kelp forests are some of the most productive coastal ecosystems in the world and provide numerous ecosystem goods and services. Where they occur, they play a key role in coastal ecology and local fisheries. In South Africa, Ecklonia maxima and Laminaria pallida form kelp forests which support …
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Environmental Impacts on the Development and Dune Activity of Oxbow Lake along the Southwest Coast of Lake Michigan at Saugatuck, Michigan USA
Coastal dunes of Lake Michigan and corresponding down-wind lakes are studied for links between dune activity and climatic forcing; to date, little is certain about climate control on dune activity. By unveiling relationships between climate variables and dune activity, it becomes possible to …
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Oceanographic considerations for the management and protection of surfing breaks
… there is little specific research on surfing and coastal management. Such research is required because coastal engineering has had significant impacts to surfing breaks, both positive and negative. Strategic planning and environmental impact assessment methods, a central tenet of integrated …