Date of Award
Spring 5-2018
Degree Type
Thesis
Degree Name
M.S.
Degree Program
Earth and Environmental Sciences
Department
Earth and Environmental Sciences
Major Professor
Georgiou, Ioannis
Second Advisor
Kulp, Mark
Third Advisor
Howes, Nick
Abstract
Deltas are important coastal systems throughout the world. River mouth bars are key landforms in the development of deltas, are characterized by sediment deposition, and have high potential for sediment preservation. Scientists and professionals seek to understand the discrete response of mouth bars to the various controls governing their evolution. This study utilizes the numerical modelling software Delft3D to provide additional evidence supporting the morphological and stratigraphic responses resulting from variations in basin configurations and allogenic controls (fluvial discharge, tides, basin width). Mud content within the bar increased analogous to an increase in the tidal modulation, while a decrease in the initial basin depth reduced mud content. Initial basin slope and lateral confinement had less obvious impacts on stratigraphy. Finally, variable fluvial discharge and the incorporation of realistic tidal harmonics produced similar bar morphologies (compared to simulations with constant flow and sinusoidal tides), yet demonstrated significant differences in bar stratigraphy.
Recommended Citation
Flathers, Joshua, "The Role of Basin Configuration and Allogenic Controls on the Stratigraphic Evolution of River Mouth Bars" (2018). University of New Orleans Theses and Dissertations. 2462.
https://scholarworks.uno.edu/td/2462
Rights
The University of New Orleans and its agents retain the non-exclusive license to archive and make accessible this dissertation or thesis in whole or in part in all forms of media, now or hereafter known. The author retains all other ownership rights to the copyright of the thesis or dissertation.