Dissertations / Theses on the topic 'Tidal basins Mathematical models'
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Marchand, Philippe 1972. "Hydrodynamic modeling of shallow basins." Thesis, McGill University, 1997. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=20274.
Full textStevens, Malcolm William. "A three-dimensional tidal model for shallow waters using transformations and variably spaced grids." Title page, contents and summary only, 1990. http://web4.library.adelaide.edu.au/theses/09PH/09phs845.pdf.
Full textBills, Peter John. "Barotropic depth-averaged and three-dimensional tidal programs for shallow seas /." Title page, contents and summary only, 1991. http://web4.library.adelaide.edu.au/theses/09PH/09phb599.pdf.
Full textSteele, Madeline Olena. "Effects of HRU Size on PRMS Performance in 30 Western U.S. Basins." PDXScholar, 2013. https://pdxscholar.library.pdx.edu/open_access_etds/654.
Full textNajafi, Hashem Saberi. "Modelling tides in the Persian Gulf using dynamic nesting /." Title page, table of contents and abstract only, 1997. http://web4.library.adelaide.edu.au/theses/09PH/09phn162.pdf.
Full textCoutis, Peter F. School of Mathematics UNSW. "Currents, coasts and cays : a study of tidal upwelling and island wakes." Awarded by:University of New South Wales. School of Mathematics, 2000. http://handle.unsw.edu.au/1959.4/18207.
Full textMatthews, Karyn. "A spherical coordinate tidal model of the Great Australian Bight using a new coastal boundary representation /." Title page, contents and abstract only, 1995. http://web4.library.adelaide.edu.au/theses/09PH/09phm4391.pdf.
Full textDunbar, Donald Stanley 1953. "A numerical model of stratified circulation in a shallow-silled inlet." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/25571.
Full textScience, Faculty of
Earth, Ocean and Atmospheric Sciences, Department of
Graduate
Tumbo, Madaka Harold. "Uncertainties in modelling hydrological responses in gauged and ungauged sub‐basins." Thesis, Rhodes University, 2015. http://hdl.handle.net/10962/d1018568.
Full textDressler, Kevin Andrew. "Estimating the Spatial Distribution of Snow Water Equivalent and Simulated Snowmelt Runoff Modeling in Headwater Basins of the Semi-arid Southwest." Diss., Tucson, Arizona : University of Arizona, 2005. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu%5Fetd%5F1063%5F1%5Fm.pdf&type=application/pdf.
Full textGalarraga, Sanchez Remigio Hernan. "Scale effects in determining snowmelt from mountainous basins using a distributed approach for snow water equivalence and radiation, and a point snowmelt model." Diss., The University of Arizona, 1995. http://hdl.handle.net/10150/191186.
Full textKreider, Marc Alan. "A numerical investigation of the global stability of ship roll : invariant manifolds, Melnikov's method, and transient basins /." Thesis, This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-03142009-040740/.
Full textGarcía, Castellanos Daniel. "Desarrollo de modelos numéricos de flexión litosférica: aplicación a fosas oceánicas y cuencas de antepaís." Doctoral thesis, Universitat de Barcelona, 1988. http://hdl.handle.net/10803/666263.
Full textFlexure of the lithosphere is a widely observed process in different tectonic settings. Its study is particularly relevant to understand the formation of foreland basins and oceanic trenches. The lithosphere bends in response to external loads (e.g., thrusts) and/or hidden Loads (e.g., lithospheric deformation). Thereby, the evolution of the deflection and the basin infill geometry are directly related to loading processes. The main goal of this work is to develop numerical models of lithospheric flexure and their application to the study of oceanic trenches and foreland basin formation. The first part of this Thesis deals with the conceptual models that link loading processes to basement deflection and basin infill geometry. This relationship is mainly controlled by the rheological behavior of the litosphere and by surface processes such as erosion and sedimentation. The second part includes the development of thin plate model based algorithms with different rheologies: elastic, viscoelastic, and elastoplastic. A relevant contribution of this work is the integration in the flexural model of a 2D and 3D fully kinematic approach which realistically simulates thrust emplacement. Erosion and sedimentation processes are treated distinctly in the 2D and 3D approaches. The 2D approach considers either a constant erosion/sedimentation rate or a diffusive model, whereas the 3D can also incorporate advection through a drainage network. Both approaches include eustatic sea level variations and paleobathymetry. Elastic and homogeneous elastoplastic plate models do not account for the observed deflection and basin architecture. Moreover, these models predict an unrealistic lithospheric stress distribution. In contrast, the viscoelastic plate model permits to reproduce complex infill geometries, whereas the non-homogeneous elastoplastic plate model predicts, in addition, a more realistic stress distribution. The application of the 2D algorithms to the Tonga and Kennadec trenches has allowed to constrain the lithospheric structure of the Pacific Plate and the magnitude of the forces acting on the subducting slab. The most outstanding result is the necessity to impose a horizontal extensional force to fit the deflection of the basement. This implies that the driving mechanism is mainly governed by slab pull rather than mantle drag. Results also favour the half plate cooling model proposed by Stein & Stein (1992) instead of that proposed by Parsons & Sclater (1977), although the uncertainties on the rheological parameters do not allow for firm conclusions. The application of the 2D and 3D algorithms to Southern Spain reveals that the Internal Betics play a negligible role in the formation of the Guadalquivir foreland basin. The basement deflection can only be explained considering the topography and paleobathymetry loads, the Load associated with crustal deformation, and a hidden or extra load seated at subcrustal levels. The analysis of gravity and geoid anomalies suggests that the hidden load is likely related to lithospheric thickening beneath the Betics. The complex stratigraphy of the Guadalquivir basin, particularly during Tortonian and Messinian times, is successfully reproduced by the viscoelastic and the non-homogeneous elastoplastic plate models suggesting that the basin infill resulted from the combination of eustatic sea-level variations, viscous stress relaxation, and layered lithospheric strength. Furthermore, the non-homogeneous elastoplastic plate model accounts for the presence of basement extensional faults that developed during thrusting.
Devlin, Adam Thomas. "On the variability of Pacific Ocean tides at seasonal to decadal time scales| Observed vs modelled." Thesis, Portland State University, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10128376.
Full textOcean tides worldwide have exhibited secular changes in the past century, simultaneous with a global secular rise in mean sea level (MSL). The combination of these two factors contributes to higher water levels, and may increase threats to coastal regions and populations over the next century. Equally as important as these long-term changes are the short-term fluctuations in sea levels and tidal properties. These fluctuations may interact to yield locally extreme water level events, especially when combined with storm surge. This study, presented in three parts, examines the relationships between tidal anomalies and MSL anomalies on yearly and monthly timescales, with a goal of diagnosing dynamical factors that may influence the long-term evolution of tides in the Pacific Ocean. Correlations between yearly averaged properties are denoted tidal anomaly trends (TATs), and will be used to explore interannual behavior. Correlations of monthly averaged properties are denoted seasonal tidal anomaly trends (STATs), and are used to examine seasonal behavior. Four tidal constituents are analyzed: the two largest semidiurnal (twice daily) constituents, M2 and S2, and the two largest diurnal (once daily) constituents, K1 and O1.
Part I surveys TATs and STATs at 153 Pacific Ocean tide gauges, and discusses regional patterns within the entire Pacific Ocean. TATs with statistically significant relations between MSL and amplitudes (A-TATs) are seen at 89% of all gauges; 92 gauges for M2, 66 for S2, 82 for K1, and 59 for O1. TATs with statistically significant relations between tidal phase (the relative timing of high water of the tide) and MSL (P-TATs) are observed at 55 gauges for M2, 47 for S2, 42 for K1, and 61 for O1. Significant seasonal variations (STATs) are observed at about a third of all gauges, with the largest concentration in Southeast Asia. The effect of combined A-TATs was also considered. At selected stations, observed tidal sensitivity with MSL was extrapolated forward in time to the predicted sea level in 2100. Results suggest that stations with large positive combined A-TATs produce total water levels that are greater than those predicted by an increase in MSL alone, increasing the chances of high-water events.
Part II examines the mechanisms behind the yearly (TAT) variability in the Western Tropical Pacific Ocean. Significant amplitude TATs are found at more than half of 26 gauges for each of the two strongest tidal constituents, K1 (diurnal) and M2 (semidiurnal). For the lesser constituents analyzed (O1 and S2), significant trends are observed at ten gauges.
Part III analyzes the seasonal behavior of tides (STATs) at twenty tide gauges in the Southeast Asian waters, which exhibit variation by 10 – 30% of mean tidal amplitudes. A barotropic ocean tide model that considers the seasonal effects of MSL, stratification, and geostrophic and Ekman velocity is used to explain the observed seasonal variability in tides due to variations in monsoon-influenced climate forcing, with successful results at about half of all gauges. The observed changes in tides are best explained by the influence of non-tidal velocities (geostrophic and Ekman), though the effect of changing stratification is also an important secondary causative mechanism.
From the results of these surveys and investigations, it is concluded that short-term fluctuations in MSL and tidal properties at multiple time scales may be as important in determining the state of future water levels as the long-term trends. Global explanations for the observed tidal behavior have not been found in this study; however, significant regional explanations are found at the yearly time scale in the Solomon Sea, and at the seasonal time scale in Southeast Asia. It is likely that tidal sensitivity to annual and seasonal variations in MSL at other locations also are driven by locally specific processes, rather than factors with basin-wide coherence. (Abstract shortened by ProQuest.)
Taha, Ammar. "Etude expérimentale et numérique de la contribution des eaux infiltrées à la formation des débits des crues en zone méditerranéenne : application à un versant du Real Collobrier." Université Joseph Fourier (Grenoble), 1995. http://www.theses.fr/1995GRE10052.
Full textHadi, Safwan. "A numerical tidal model of Musi-Upang estuaries." Thesis, 1985. http://hdl.handle.net/10125/10021.
Full textMatthews, Karyn. "A spherical coordinate tidal model of the Great Australian Bight using a new coastal boundary representation / Karyn Matthews." Thesis, 1995. http://hdl.handle.net/2440/18639.
Full textKelly, Samuel M. "Tide-topography coupling on a continental slope." Thesis, 2010. http://hdl.handle.net/1957/19917.
Full textGraduation date: 2011
Zhou, Shaohua. "Geophysical investigations on the formation mechanism of the Eromanga Baisn, Australia / by Shaohua Zhou." 1991. http://hdl.handle.net/2440/19778.
Full textxiii, 246 leaves : ill., maps ; 30 cm.
Title page, contents and abstract only. The complete thesis in print form is available from the University Library.
Thesis (Ph.D.)--University of Adelaide, Dept. of Geology and Geophysics, 1992
Zhou, Shaohua. "Geophysical investigations on the formation mechanism of the Eromanga Baisn, Australia / by Shaohua Zhou." Thesis, 1991. http://hdl.handle.net/2440/19778.
Full textCobiac, Linda J. "Sedimentation ponds and their operation in stormwater systems." Thesis, 2001. http://hdl.handle.net/2440/115878.
Full textThesis (M.Eng.Sc.) -- University of Adelaide, Dept. of Civil and Environmental Engineering, 2001