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 52 for “"mean sea level"”.
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Extreme sea levels in the English Channel 1900 to 2006
… of enhanced coastal flooding due to rising sea levels and climate change. Hence, it is of utmost practical importance that probabilities of current and future extreme sea level are accurately evaluated so that the changing flood risk can be assessed and defences upgraded where appropriate. …
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Prediction under uncertainty : from models for marine-terminating glaciers to Bayesian computation
… have enormous potential impact on future global mean sea level rise. Recent observations suggest they are losing mass to the ocean at an accelerated rate. Skillful prediction of the ice sheets' future mass loss remains difficult, however; observations of key variables are insufficient and …
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Sea level variability in the Tropical Atlantic since 1993 and projections to 2100
Global Mean Sea Level (GMSL) is a critical climate metric that captures the cumulative effects of thermal expansion, changes in ocean mass and ice melt. Understanding GMSL is essential for coastal adaptation strategies, but regional variations can differ significantly from the global average, …
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Using Sea-Level Data to Constrain the Contribution of the Greenland Ice Sheet to Contemporary and Recent Sea-Level Change
… potentially wide-reaching impacts on climate and sea-level change of a declining Greenland Ice Sheet (GrIS), the mass balance of the past decade has caused concern that the ice sheet is reacting to increased temperatures of the industrial era and that the ice sheet is in the initial stages of …
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Bioenergetics and Life History of Rainbow Smelt in Lake Oahe, South Dakota
… hectares at maximum pool, which is 493.8 m above mean sea level. Water levels are expected to fluctuate within a maximum range of 24.4 m and an average fluctuation of 3.8 m annually. Minimum operating pool has been established at 469.4 m above mean sea level. (June 1974). Closure of the dam …
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Setup in the surfzone
… and wave-breaking-driven increases in the mean sea level (setup) are examined on alongshore-uniform beaches with alongshore homogeneous and inhomogeneous wave forcing. While previously derived models predict wave heights adequately (root-mean-square errors typically less than 20%), the …
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Setup in the surfzone
… and wave-breaking-driven increases in the mean sea level (setup) are examined on alongshore-uniform beaches with alongshore homogeneous and inhomogeneous wave forcing. While previously derived models predict wave heights adequately (root-mean-square errors typically less than 20%), the …
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Towards a geoid consistent vertical datum in South Africa
… vertical datums have been realised through mean sea level (MSL) data, at one or more tide gauge station(s), followed by a precise levelling procedure to establish a network of benchmarks. Most countries around the world are still using mean sea level based vertical datums, and South Africa …
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Study of the Origins of the Sigma-0 Blooms
… capable of making accurate measurements of the mean sea level in a way that allows the study of ocean dynamics. The understanding of ocean dynamics is very important in order to study events such as El Nino. Soon after the launch of the TOPEX satellite, some unusually high, but localized, values …
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Sea level variability: examples from the Atlantic coast of Europe
… the statistics of the long-term variability in sea level records and trends along the Atlantic coast of Europe. This is undertaken for a range of regionally-representative open-sea sites. Tidal variability on a shorter time-scale is also investigated, for a local area subjected to intense …
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Examination of Abiotic Drivers and Their Influence on Spartina alterniflora Biomass over a Twenty-eight Year Period Using Landsat 5 TM Satellite Imagery of the Central Georgia Coast
… aboveground S. alterniflora biomass to landscape level estimates using 294 Landsat 5 TM scenes acquired between 1984 and 2011. For each scene we extracted data from the same 63 sampling polygons, containing 1222 pixels covering about 1.1 million m2. Using univariate and multiple regression tests, …
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Seasonal hydrological prediction in Great Britain – an assessment
This thesis assesses seasonal hydrological prediction in Great Britain. Firstly, the study evaluates river flow prediction using climate model output to drive a rainfall-runoff model in the Dyfi basin, Wales. Results show that climate model precipitation can not skilfully simulate Dyfi discharge. …
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The marine geology of False Bay
… Bay boulder beach at approximately 100 ft. above mean sea-level, is dated by the writer as of Great Interglacial age. It is pointed out that the Stellenbosch river terraces, dated by A. Krige (1927) as Last Interglacial, can in no way be related to this period. Evidence is presented which suggests …
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Coastal floods in view of sea level rise
The sea level rise induced intensification of coastal floods is a serious threat to many regions in proximity to the ocean. Although severe flood events are rare they can entail enormous damage costs, especially when built-up areas are inundated. Fortunately, the mean sea level advances slowly and …
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“We Look to the Water”: Coastal Erosion and the Transformation of shíshálh Cultural Landscapes
Rising sea levels, storm surges, and shoreline erosion are ongoing climate change effects that have produced tremendous impacts on Indigenous cultural heritage across the world. Few available studies have focused on how these impacts will affect heritage sites and cultural landscapes on the coast …
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Assessing Aquifer Vulnerability to Seawater Intrusion : Application of the GALDIT-Index to the Emilia-Romagna Coastline.
… grow in the very near future due to the expected sea-level rise (SLR) associated with the human-induced climate change. In this context, the following research proposes an assessment of the vulnerability of the Emilia-Romagna coastline (Italy) to SWI under present conditions. This assessment is …
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The Effect of Icing on the Dispatch Reliability of Small Aircraft
… this transportation system. Specifically, this research presumes that a route is considered a "no-go" for low time pilots in a small, piston powered aircraft if any icing conditions are forecast along the route at the altitude of the flight during the time the traveler desires to make the trip. …
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A comparison of the least squares collocation and the fast Fourier transform methods for gravimetric geoid determination
The objective of the research was to study the performance of the least squares collocation (LSC) and the fast Fourier transform (FFT) techniques for gravimetric geoid computation. The Land Levelling Datum (LLD) is the South African vertical datum based on more than 100 years old tide gauge …
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Storm smart planning for adaptation to sea level rise : addressing coastal flood risk in East Boston
… the weight of scientific evidence indicates that mean sea level will continue to rise at an increasing rate over the next century. Thus, coastal lands and development lie in a precarious position, increasingly vulnerable to flood damage brought by storm surges and extreme weather events. In order …
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Estimating atmospheric boundary layer turbulence in the marine environment using lidar systems with applications for offshore wind energy
… measure turbulence up to a height of 200 m above mean sea level in the marine-atmospheric boundary layer was tested using a 7-month data set spanning winter to early summer. Lidar-based TI and TKE were estimated by three methods using observations from a highly validated lidar system and compared …
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