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 “"river deltas"”.
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Simple numerical models for fluvially-dominant river deltas
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2020-08-01
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Unifying multi-source data and modeling perspectives to investigate connectivity and material transport in coastal river deltas
River deltas are characteristically complex and dynamic landscapes that build from deposited sediment at the mouths of rivers. Deltaic systems tend to self-organize into an elaborate connected network of channels and islands which interact and exchange fluxes of matter and energy, and understanding …
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Modeling the Lafourche Delta network in the Mississippi Delta Complex
<p>The distributary channel network morphology on deltas is important for the delta evolution study because channels are the primary conduit for carrying and distributing water, sediment, and nutrients to the coast. Numerical models of river deltas and their channels have improved remarkably over …
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Comparison of Flow Dynamics and Bifurcation Angles in Tributary and Distributary Channel Networks
<p>The dynamics of channel mouth bifurcations on river deltas can be understood using theory developed in tributary channel networks. Bifurcations in groundwater-fed tributary networks have been shown to evolve dependent on diffusive ground water flow patterns</p> <p>directly adjacent to the …
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River bifurcations: key processes, timescales and evolutionary trajectories
River bifurcations are constituent components of multi-thread fluvial systems, playing a crucial role in their morphodynamic evolution. As highlighted by several field studies and laboratory investigations, natural bifurcations tend to display unbalanced configurations, in which one branch carries …
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Spatial structure and dynamics of the plant communities in a pro-grading river delta : Wax Lake Delta, Atchafalaya Bay, Louisiana
River deltas are dynamic depositional environments that are controlled to varying degrees by coastal and fluvial forces. Plant communities in deltas respond to many of the same allogenic forces that shape delta geomorphology. This study examines the factors that influence plant community …
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Detecting and Modeling Landfast Ice in the Alaskan Bering Sea
… to the southernmost point on the Yukon-Kuskokwim River Deltas. Chapter 1 results in the creation of landfast ice spatial data in these areas ranging from 1996 – 2008. Results show the spatial distribution and seasonal duration of landfast ice vary regionally within our study area, does not …
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Differential Sedimentation In A Mississippi River Crevasse Splay
… of a crevasse splay in the modern Mississippi River delta are examined, with emphasis on the development of a distributary mouth bar. Simultaneous hydroacoustic and optical measurements on the mouth bar show that the bar conforms to the progradational stage of an existing conceptual model of …
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Ground deformation observed in the western Corinth rift (Greece) by means of SAR interferometry
… Ακratas, the island of Trizonia, and the river deltas of Psathopyrgos, Sellianitika, Aigion, Mornos, Marathias and Akrata. Significant ground deformation is observed within the city of Patras itself, due not only to urban subsidence often seen elsewhere, but also to the motion of shallow …
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An organic geochemical approach to problems of glacial-interglacial climatic variability
… the nutrient-bearing plume of the Mississippi River may have advanced and retreated across the Pigmy Basin as sea level fell and rose in response to glacial-interglacial sea level change. A study of selected organic biomarker compounds which could serve as tracers of terrigenous and marine …