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 32 for “"Wave climate"”.
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Microtremor recordings in Northern Mississippi: Evaluating site effect and correlating with wave climate
… sediments thickness (UST) and average shear wave velocity (Vs) are also estimated. Within the low frequency range (<0.2Hz), high HVSRs are observed in most LTRs and STRs, which is possibly caused by the wind either directly blow on the seismometer or on the buildings around the recording …
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The Impact of Large Scale Wave Energy Converter Farms on the Regional Wave Climate
Over recent years the numerical simulation of Wave Energy Converters (WECs) has become a necessity. This enables the representation of many hydrodynamic interactions, allowing wave models to simulate processes from quantifying wave loading on a device to cumulative environmental impact of multiple …
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The role of the large-scale modes of climate variability in the Southern African wave climate
The wave energy flux along the southern African coastline regularly reaches extreme levels, seriously impacting coastal communities, infrastructure, as well as near-coast and offshore marine operations. Understanding the drivers behind past high wave energy events and their frequency is key to …
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Analysing modelled nearshore wave climate variability and change as relevant to the traditional handline fishery of the South African South Coast
… to added stresses such as those induced by climate change. While fishers have noted that deteriorating sea state and a declining number of sea days caused by shifts in wind patterns are affecting their livelihood, applicable scientific research and data on scales relevant to the fishers is …
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Convexity, Concavity, and Human Agency in Large-scale Coastline Evolution
… in many landscapes, and evolve according to climate and hydrological forces. For large-scale, sandy coastlines, these shapes depend on wave climate forcing. The wave climate is influenced by storm patterns, which are expected to change with the warming climate, and the associated changes in …
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Investigating the evolution and formation of coastlines and the response to sea-level rise
To understand how waves and sea level shape sandy shoreline profiles, I use existing energetics-based equations of cross-shore sediment flux to describe shoreface evolution and equilibrium profiles, utilizing linear Airy wave theory instead of shallow-water wave assumptions. By calculating a …
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Investigating the evolution and formation of coastlines and the response to sea-level rise
To understand how waves and sea level shape sandy shoreline profiles, I use existing energetics-based equations of cross-shore sediment flux to describe shoreface evolution and equilibrium profiles, utilizing linear Airy wave theory instead of shallow-water wave assumptions. By calculating a …
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Understanding the dynamics of a mixed sand and gravel coastline: a multi-method approach.
… of variable geomorphology, a bi-modal wave climate and active nearshore processes causes large differences in shoreline behaviour along short (less than 300 m) lengths of the beach frontage. Novel sediment analysis has highlighted the need to assess the vertical and surficial proportion …
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Wave-driven geomorphology of Pacific carbonate coastlines: from landscape to wavelength scale
… are among the most vulnerable to anthropogenic climate change. Sea-level rise threatens to inundate low-lying reef islands, tropical cyclone intensification threatens islands with flooding and erosion, and ocean warming and acidification threaten the health of coral reefs. Unfortunately, the …
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Wave energy resource assessment
… altimeter data for spatial mapping of the wave resource is examined.<br/>A new algorithm for estimating wave period from altimeter data is developed and<br/>validated, which enables estimates of wave energy converter (WEC) power to be<br/>derived. Maps of the long-term mean WEC power from …
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Wave impacts on rectangular structures
… uncertainty and sensitivity in the results for wave impact. In a practical situation, many parameters such as the wave climate will not be known with any accuracy especially the frequency and severity of wave breaking. Even if the wave spectrum is known, this is usually recorded offshore, …
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Cooling and internal waves on the Continental Shelf
… from this balance. Solutions for linear internal waves are found for a wedge-shaped bathymetry with bottom friction. Bottom friction is capable of entirely dissipating the waves before they reach the coast, and waves traveling obliquely offshore are reflected back to the coast from a caustic. The …
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Beach development and movement as a function of water waves
… study is made of available knowledge regarding wave theory and sediment transport in the nearshore zone, with special emphasis on littoral drift. The linear Airy theory for water waves is developed for the computation of longshore current, utilizing certain exact relationships for momentum flux. …
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Signatures of land-ocean interactions in coastal morphology
… an energetics model, coupled with a 40-year wave-climate time series, to estimate crossshore sediment transport flux across the shoreface, illustrating how high-energy waves facilitate onshore sediment transport and possibly providing a physical explanation for post-storm beach recovery. …
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Beach-dune interactions and a new cycle of foredune evolution, Gulf County, Florida
… of erosion/accretion rates, exposure to wind and waves, and foredune heights. Topographic surveys, vegetation surveys, wave data, and archival research were all used to analyze the locations. The accumulated data were applied to the predominant models in an attempt to verify their applicability …
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Analysis of 2-axis pencil beam sonar microbathymetric measurements of mine burial at the Martha’s Vineyard Coastal Observatory
… The progression of mine burial is related to the wave climate, unsteady flow hydrodynamic forcing, and bed-load transport. The analysis examines the relative roles of these mechanisms in the scour-infill-bury process.
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Analysis of 2-axis pencil beam sonar microbathymetric measurements of mine burial at the Martha's Vineyard Coastal Observatory
… The progression of mine burial is related to the wave climate, unsteady flow hydrodynamic forcing, and bed-load transport. The analysis examines the relative roles of these mechanisms in the scour-infill-bury process.
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Power extraction from an oscillating water column along a coast
For reasons of wave climate, geography, construction, maintenance, energy storage and transmission, some devices for extracting energy from sea waves will likely be installed on the coast. We study here the specific case where an Oscillating Water Column (OWC) is attached to the tip of a long …
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Wind-Driven Sea Surface Wave and Coastal Water Level Dynamics Across Different Spatial Scales
Wind-generated surface waves can propagate over long distances towards vulnerable coastal regions. Complex factors that impact the properties of surface waves, including wind, topography, and water levels, must be incorporated into numerical models to achieve accurate simulations of the wave …
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Late Quaternary variability in coastal changes along the Texas Gulf coast
… as antecedent topography, regional subsidence, wave climate, offshore profile, and anthropogenic effects. The central Texas coast is characterized by stable barriers whereas the upper and south Texas coast is dominated by transgressive barriers. These changes along the Texas coast became …
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