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.
Results
Showing 1 to 20 of 57 for “"coastal environment"”.
-
High-frequency acoustic tomography in a high-current coastal environment
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 2000.
-
A Spatial Dynamic Model of Population Changes in a Vulnerable Coastal Environment
Achieving coastal sustainability in low-lying coastal areas is a great challenge. This study developed a spatial dynamic model to study the coupled natural-human responses in the form of population changes in the Lower Mississippi River Basin region. The goal was to identify the key social-economic …
-
A comparative study of a conventional and a mound on-site wastewater disposal system in a coastal environment
… system (OSWDS). The site was characterized by coastal beach soils. Average wastewater loadings to each drainfield were 10,800 liters per day. The density of the ground water varied due to changes in salinity and the hydraulic gradients fluctuated due to tidal effects. The OSWDS’s were used …
-
Numerical modelling of tidal flows around headlands and islands
… modelling techniques for application in the coastal environment, (ii) elucidate the development of wake features in the coastal environment, and (iii) illustrate the impact of wake features on tidal mixing and dispersion processes. A numerical finite-difference model has been developed using …
-
Quantitative Methodology for Measuring Natural Character in New Zealand's Coastal Environments
Anecdotal evidence points to an overall loss of coastal natural character in New Zealand since preserving the natural character of the coastal environment first became a statutory policy-goal in 1973. Today the preservation of the natural character of the coastal environment is one of the matters …
-
Horizontal linear array sensor localization and preliminary coherence measurements from the 2001 ASIAEX South China Sea experiment
… to study transverse array coherence in a coastal environment. Arrays obtain their gain and directivity by coherently adding the energy that impinges on them. Therefore, to maximize the efficiency of an array, the size of the aperture over which the signal remains coherent needs to be …
-
Evaluating Interferometric Synthetic Aperture Radar Coherence for Coastal Geomorphological Changes
… monitoring and assessing changes in the coastal environment, with emphasis on the coastal geomorphology.<br/><br/>A combination of remote sensing data acquired for Montrose Bay, NE Scotland, has been used to analyze changes to the geomorphology of the beach and dune system in terms of …
-
A coastal zone management framework for the Erongo Region of Namibia
Management of the coastal environment of the Erongo Region of Namibia is currently fraught with difficulty because of a lack of cohesive planning at national, regional, and local level; a multiplicity of agencies responsible for the management of coastal activities whose planning and management …
-
Regulating land-based sources and activities causing pollution of the coastal and marine environment in South Africa, Kenya and Nigeria within the context of integrated coastal zone management
… and activities causing pollution (LBSA) in the coastal and marine environment in two broad areas of sub-Saharan Africa, the West and Central African Region (WACAF) and the West Indian Ocean (WIO) region. These two regions are both endowed with a diversity of life forms and resources that support …
-
A systematic investigation of open station shell midden sites along the southwestern Cape Coast
… as who they were, how they interacted with the coastal environment and their relationship to inland peoples were to be considered. This was to involve the investigation of an area considered to be representative of varying environmental conditions and therefore offering different opportunity and …
-
Organic and inorganic contaminants along the Qatari Coast : a case study of the pearl oyster (pinctada radiata)
… marine ecosystems from the adverse effects of environmental contaminants is a core component of the Environmental Development pillar within the National Vision 2030. However, a limited number of studies have investigated contaminant concentrations in the coastal environment of Qatar. The …
-
Sea level variations and the impacts along the coastal areas of Nigeria
A brief review of the Nigerian Coastal Areas including the geology, geomorphology, topography, climate, and vegetation has been given. Nigeria has a coastline of about 850km facing the Atlantic Ocean and the coastal areas support a population of about 20 million people and a myriad of economic …
-
Turbulent combined wave-current boundary layer model for application in coastal waters
… processes, including sediment transport, in the coastal environment is impossible without correct current velocity and shear stress information. A combined wave-current boundary layer theory is necessary to predict these quantities, and while the previous Grant-Madsen type boundary layer models …
-
Single mode excitation in the shallow water acoustic channel using feedback control
… mid-frequency propagating modes propagating in a coastal environment. The ability to excite a single mode would be a powerful tool for investigating shallow water ocean processes. A feedback control algorithm incorporating elements of adaptive estimation, underwater acoustics, array processing and …
-
A social history of black culture in colonial North Carolina
… and its mythology; the lore and reality of the coastal environment; the art and craft of agricultural production; measured experience (time, space and distance); the law and lawlessness; the lore of race relations; health, spirituality and romance--reflects its effort to focus analysis primarily …
-
Geochemical tracers in the deep-sea and the North Sea
… Sea, mainly the anthropogenic impact on the coastal environment was studied. Heavy minerals indicate higher currents velocities, leading to a loss of fine fraction in recent tidal flat sediments. Today, heavy metal rich clay particles are only to a small extent deposited in the Wadden Sea …
-
Livelihoods of small-scale fishers of Struisbaai : implications for Marine Protected Area planning.
South Africa’s coastal environment is characterized by an increasing network of Marine Protected Areas (MPA), with the purpose of conserving fisheries resources and marine biodiversity. The coast is also home to over a hundred rural small-scale fisher communities, such as the community at …
-
Measurement and behaviour of heavy metals in the marine environment of Singapore
… hydrodynamic characteristics in Singaporea??s coastal environment. To evaluate relative mobility and bioavailability, a further study on the chemical speciation of heavy metals in the marine sediments from the two sampling sites was determined using a modified BCR-sequential extraction …
-
Ecological effects of Beach Litter (BL) on Mediterranean psammophilous plants and communities
… any solid, transformed material that enters the coastal environment intentionally or inadvertently from various sources, is recognised as one of the most significant pollution problems on the world's coasts, with environmental, economic, and social impacts, many of which remain poorly understood. …
Page 1 of 3