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 8 of 8 for “"Tidal asymmetry"”.
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Hypsometric and geometric controls on hydrodynamics, tidal asymmetry, and sediment connectivity in shallow estuarine systems
Estuaries and tidal basins are highly dynamic coastal systems that serve as a transition zone between the river and the ocean. The morphological evolution of these diverse environments is modulated by non-linear feedbacks between tides, meteorological forcing, and sediment transport processes. This …
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Tidal distortion in shallow estuaries
… consequent time and magnitude asymmetries in tidal currents. Flood-dominant estuaries are characterized by longer falling tides and stronger flood currents while ebb-dominant estuaries have longer rising tides and stronger ebb currents. The asymmetries are reflected in the non-linear growth of …
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Tidal velocity asymmetries and bedload transport in shallow embayments
Tidally forced circulation can cause a net near-bed transport of sediment when the tidal velocity is asymmetric about a zero mean (flood or ebb dominant) and the transport rate is nonlinearly related to velocity. The relationship between elevation and velocity is elucidated here to enable one to …
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The control of wind and waves on sediment transport asymmetry and the long-term morphological development of estuaries
… of estuarine basins highlight the dominance of tidal asymmetry in controlling the hydrodynamic and morphodynamic feedbacks that ultimately lead to a stable morphological state. This thesis uses field measurements, numerical modelling and sediment deposition records to investigate how waves …
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Tidally Induced Transport Dynamics in a Wadden Sea Tidal Basin and Its Changes Under Future Sea Level Rise Scenarios
… Wadden Sea are shaped by the interplay between tidal dynamics, basin geomorphology, and atmospheric forcing. These interactions create spatial structures of hydrodynamic connectivity that govern transport processes, ecological functioning, and the interpretation of long-term observations. …
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The evolution of tidal coastal landscapes and the controls on pathways to equilibrium
The evolution of tidal basins is fundamental to understanding the drivers of our vulnerable estuarine and lagoon environments, ultimately determining key ecological parameters such as intertidal area, inundation regime, connectivity and accommodation space. This thesis uses multiple methods …
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The impact of land reclamation on tidal dynamics and suspended-sediment dynamics in Jiaozhou Bay, Qingdao, China
Using a tidal dominated bay, Jiazhou Bay (JZB) in Qingdao, China, as a sample, this thesis contains three parts: 1) the impact of land reclamation on tidal dynamics; 2) the impact of land reclamation on suspended-sediment dynamics; 3) the impact of wave-current interaction on suspended-sediment …
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Nutrient dynamics in shallow tidally-dominated estuaries
Te Puna and Waikareao estuaries are shallow tidally-dominated estuaries in Tauranga Harbour located on the Bay of Plenty Coast, New Zealand. Tauranga Harbour is the site of a large commercial port surrounded by urban development. The primary aim of this thesis was to determine the variations of …