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 210 for “"beaches"”.
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COMMUNITY ECOLOGY OF CHILEAN SANDY BEACHES
… and macroinfaunal data from adjacent beaches with coarser sand. Differences in beach physical characteristics did not affect the life history traits of peracarids; in contrast, the same physical characteristics may indeed have affected the population structure of E. …
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Longshore currents on seawall-protected beaches
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1996.
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Valuing Chicago’s beaches across race and income
… gaps by estimating the value of Chicago's public beaches and how the distribution of that value is affected by income, race, access to transportation, and age. We analyze data from a travel cost survey of over 750 diverse households in the greater Chicago area. Results indicate that willingness to …
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The valuation of beaches as urban open space
The beach is a unique open space in the urban context. It is a dynamic aggressive environment that has in the past been ignored as an open space that has special qualities. While it has been seen purely as a recreational facility, ecosystem services and intrinsic values have been ignored. In Cape …
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Magnetic susceptibility mapping of Point Pelee National Park beaches.
… with a Bartington susceptibility meter. The West beaches showed no significant variation in susceptibility measurements, the East beaches showed highly variable susceptibility values which tended to increase towards the vegetation line. The East beaches magnetic susceptibility varied from 68*10-6 …
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ISPH Modelling of Solitary Wave Interaction with Permeable Beaches
… In coastal engineering, these protections and beaches are considered as porous media. Accurate prediction of wave motion around porous structures is necessary for the effective design of stable and durable coastal protections. Although mesh-based methods have been conventionally utilised to …
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Physical and biological factors structuring sandy beaches macrofauna communities
… are present on fine grained, flat dissipative beaches due to a more benign swash climate. It suggested that, as beach morphodynamics change to reflective conditions, which is experienced on coarse, steep beaches, few species can survive; these beaches are therefore characterised by lower …
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Wave Induced Vertical Pore Pressure Gradients at Sandy Beaches
Predicting sediment transport at sandy beaches is a significant challenge in civil engineering owing to the variability in hydrodynamic, morphological, and geotechnical properties within a site and across multiple sites. Additionally, there are difficulties in measuring in-situ properties, and …
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Beaches of the future: analyzing territorial disputes in South America
Territorial and border disputes have long been a foundation for conflicts in the international arena, but in Latin America, gaps in literature still remain. Analyzing cases in this region can equip the international community to understand sources of conflict, formulate improved foreign policy with …
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Experimental investigation of wave-induced morphological changes of gravel beaches
Gravel beaches are widespread around the North-Atlantic Ocean shorelines and can also be found along the coastlines of New Zealand, Russia and the Pacific shore of USA. Over the past decades, researchers in coastal morphodynamics have placed their emphasis on studying sand beaches but gravel …
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Public perception and coastal pollution at identified beaches in south Wales
… perception of coastal pollution at selected beaches in South Wales including Whitmore Bay, Langland Bay and Cefn Sidan. The research also investigated the regulatory framework responsible for the sustainability of coastal tourism and the effectiveness of beach award flags as marketing tools …
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Design of an autonomous litter detection and collection system for Icelandic beaches
… dataset of images from four different Icelandic beaches combined with preexisting datasets, achieving a mean average precision (mAP) of 0.78 and a precision of 83% at a confidence threshold of 0.8. The location module demonstrated reliable geolocation well within a 5x5m frame, necessary for …
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Influence of beach hydrodynamics on saltwater transport and oil persistence in beaches
… does not play a role in the intertidal zone of beaches. This hypothesis is tested through numerical modeling and laboratory experiments and is rejected. The results show that the density gradient has significant effect on solute transport in the intertidal zone. Another hypothesis states that …
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Eco-geomorphological and hydrodynamic analysis of Mediterranean microtidal beaches in Southern Sardinia
… and ecological aspects of the microtidal beaches of Southern Sardinia, Italy (Western Mediterranean Sea). Given the geomorphological variability along this coastal stretch, as well as the differing wave conditions and exposures, an initial morphometric analysis and classification was …
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Cascading Effects Of Predator Removal On The Ecology Of Sea Turtle Nesting Beaches
… of raccoon removal from sea turtle nesting beaches in east-central Florida during the summers of 2003 and 2004. Raccoon and ghost crab predation are among the highest causes of egg mortality for sea turtles in Florida and raccoons are intraguild predators of ghost crabs. Because of the …
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Ecology of the intertidal crab Dotilla intermedia from tsunami-impacted beaches in Thailand
… is the dominant macrofaunal species on<br/>these beaches, occurring in immense numbers. Despite their importance as a key member of the<br/>faunal community on these beaches, little is known about the ecology of Dotilla crabs in the<br/>Laem Son. Taxonomic investigations identified the Dotilla …
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Factors influencing the occurrence of stinging jellyfish (Physalia spp.) at New Zealand beaches
… genus Physalia are a common sight at New Zealand beaches and are the primary cause of jellyfish stings to beachgoers each year. The identity of the species and the environmental factors that determine its presence are unknown. Lack of knowledge of many marine species is not unusual, as pelagic …
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Beaches, People, and Change: A Political Ecology of Rockaway Beach after Hurricane Sandy
… and interactional justice and equity for urban beaches. The dissertation makes the case that beaches should not be managed as separate from people or nearby communities and that such management must be sensitive to issues of equity and power.</p>
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