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 984 for “"tidal"”.
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Tidal heating and tidal evolution in the solar system
In this thesis, we examine the effects of tidal dissipation on solid bodies in application and in theory. First, we study the effects of tidal heating and tidal evolution in the Saturnian satellite system. We constrain the equilibrium heating of Enceladus to be less than 1.1(18000/QS) GW, where QS …
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Topophilia: A Tidal Retreat
… of the latter in its specificity of place, the tidal marshes and sea islands of the Carolinas. How do we come to know a place? What is the significance of one's participatory perception of the qualitative experience of the natural world? How can that awareness of the specificity of the …
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Seabird use of tidal stream environments and potential interactions with tidal energy devices
… demand from renewable energy sources such as tidal streams. However, tidal stream environments are also important habitats for marine wildlife, including seabirds. Risk of collision and habitat displacement are the major negative effects of concern. The following thesis therefore examined the …
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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 Dissipation in Extrasolar Planets
… orbits have been circularized likely due to tidal dissipation inside the planets. These exoplanets share with our own Jupiter at least one trait in common: when they are subject to periodic tidal forcing, they behave like a lossy spring, with a tidal ``quality factor'', Q, of order 10^5. This …
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Morphodynamics of Ebb-Tidal Deltas
… learn more about the significant drivers of ebb-tidal delta morphology using observational methods and fundamental physical relationships between forcing conditions and morphological response. Two techniques were adapted in a novel way to study the dynamics of geomorphic features at an ebb-tidal …
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Tidal Circulation in Chesapeake Bay
… study is a comprehensive examination of the tidal circulation of Chesapeake Bay and its major tributaries. Tide and current data, which were observed in Chesapeake Bay by the National Ocean Service during the period from 1972 to 1983, are analyzed and used to construct charts that describe …
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Wave and tidal power review
… of useful conversion of wave power and tidal power is presented. These two power resources are reviewed separately, but on the same basis: principles of operation, existing devices or plants and research and development. Promising wave power devices in Britain, the United States and …
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Tidal distortion in shallow estuaries
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric and Planetary Sciences, 1984.
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Sub-Tidal Oscillations in Monterey Harbor.
… period 1964-1966 showed that two types of sub-tidal oscillations occur in the harbor having mean periods in the range of 19 to 39 minutes and 1.5 to 2.0 minutes. Their heights, recorded on the tide records, varied from 0.2 to 0.4 foot and from 0.1 to 0.5 foot, respectively. The longer waves …
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Modelling the morphodynamics of tidal channels
… of both convergent and non-convergent tidal channels have been studied. The analysis has been made using a second order numerical scheme, solving the 1D flow equations and the continuity equation for the bed evolution in order to point out the main characteristics of the phenomenon. …
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Tidal interactions between planets and stars
… close proximity to their parent stars, strong tidal interactions between the two bodies are expected to cause significant secular spin-orbit evolution. This thesis tackles two problems regarding the tidal evolution of short-period extrasolar planets. In the first part, we adopt a simple model of …
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Turbulence measurements in a tidal current.
Massachusetts Institute of Technology. Dept. of Meteorology. Thesis. 1967. M.S.
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Tidal evolution of the Uranian satellites
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric and Planetary Sciences, 1988.
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Tidal dynamics and dispersion around coastal headlands
The dynamics of shallow tidal currents and tide-induced dispersion are investigated around coastal headlands that have alongshore length scales that are comparable to or less than the tidal excursion. Depth-averaged shallow water equations forced by oscillatory flow are solved numerically for …
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Basin-scale tidal measurements using acoustic tomography
… 1988 and 1989. This paper discusses the observed tidal signals. At three out of four receivers, observed travel times at M2 and S2 periods agree with predictions from barotropic tide models to within ±30° in phase and a factor of 1.6 in amplitude. The discrepancy at the fourth receiver can be …
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Hydrodynamic controls on multiple tidal inlet persistence
… but have focused on single rather than multiple tidal inlet systems, relying solely on measured data to describe and predict the behavior of tidal inlets and/or suggesting empirical stability relationships between inlet morphology and inlet/bay hydrodynamics. At present, the only multiple tidal …
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Stratification on the Skagit Bay tidal flats
… low-sloped, periodically inundated Skagit Bay tidal flats. Advection of stratification by the depth-averaged velocity, straining of the horizontal density gradient by velocity shear, and turbulent mixing are shown to be the dominant processes. On the south-central flats (near the south fork …
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THE VERTICAL STRUCTURE OF ESTUARINE TIDAL CURRENTS
… both theoretically and experimentally for a tidal channel in a well-mixed estuary. The theory focuses on the use of eddy viscosity models. Surface slope estimates based on tide predictions, current velocity profile measurements, and stress estimates from near bottom turbulence measurements …
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Tidal Energy, Underwater Noise and Marine Mammals
… area of interaction; the potential effect of tidal-stream devices on marine mammals. Collision risk is often cited as a key concern. Therefore, my premise was - for marine mammals to avoid a collision with a marine renewable device (assuming they are on a collision course) they must first …
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