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 10 of 10 for “"reef flat"”.
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Investigating the evolution and formation of coastlines and the response to sea-level rise
… climate and underlying geometry of a carbonate reef platform shapes evolution of atolls, I simulate the hydrodynamics of a simplified reef flat, using XBeach, a two-dimensional model of infragravity wave propagation. The reef flat self-organizes to a specific width and water depth depending on …
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Investigating the evolution and formation of coastlines and the response to sea-level rise
… climate and underlying geometry of a carbonate reef platform shapes evolution of atolls, I simulate the hydrodynamics of a simplified reef flat, using XBeach, a two-dimensional model of infragravity wave propagation. The reef flat self-organizes to a specific width and water depth depending on …
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Consideration of the Hawaiian Collector Urchin, Tripneustes gratilla, as a Biocontrol Agent
… paired open and closed cages in three different reef environments (lagoon, reef flat and reef slope) for a month. Survivorship in closed cages was highest on the reef flat (∼75%), and intermediate in the lagoon and reef slope (∼50%). In contrast, open cages showed similar survivorship on the reef …
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Field and numerical investigations of wave transformation and inundation on atoll islands
… to simulate wave processes on Fatato and other reefs with variable morphology to evaluate the impact of sea level rise (SLR) on shoreline wave energy, runup and inundation within atoll environments. Field data from Fatato Island indicate clear tidal controls on sea swell (SS) waves and setup at …
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Signatures of land-ocean interactions in coastal morphology
… evolution of the shoreface, coral reefs, and volcanic ocean islands. Chapter 2 applies 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 …
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The Utility of Foraminifera in Documenting Sediment Provenance for Overwash Deposits: A Case Study Using Sediments Deposited by Tropical Cyclone Pam In Vanuatu
… foraminifera that are characteristic of beach, reef flat, and reef crest environments. The TC Pam assemblage at Manuro was dominated by unaltered foraminifera, but some individuals also showed signs of abrasion. TC Pam sediments at PRB contained fewer unaltered and more corraded foraminifera. …
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Assessing the Recalibration Interval for Nearshore Sediment Assemblages after Hurricane Irma: implications for Developing Long-term Records of Overwash Deposits
… foraminifer with a defined provenance in coral reef ecosystems. Over four sampling intervals spanning 2 years, from six months pre-Hurricane Irma to 18 months post-Hurricane Irma, surface sediment was collected from three shore-perpendicular transects on both the northern and southern shores of …
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Wave-driven geomorphology of Pacific carbonate coastlines: from landscape to wavelength scale
… 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 sediment dynamics that shape the morphology of coral reefs and …
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The ecology and microbiology of black band disease and brown band syndrome on the Great Barrier Reef
… brown band syndrome (BrB) on the Great Barrier Reef. Specifically, my aims were to: 1) examine variations in the natural progression and transmission of BBD and BrB between different months of the year and reef sites (Chapter 2); 2) investigate the effect of elevated temperature on the …