DOI
10.17077/etd.ljnvksd4
Document Type
Thesis
Date of Degree
Spring 2011
Degree Name
MS (Master of Science)
Degree In
Civil and Environmental Engineering
First Advisor
Weber, Larry J
Second Advisor
Young, Nathan C
First Committee Member
Weber, Larry J
Second Committee Member
Young, Nathan C
Third Committee Member
Krajewski, Witold F
Abstract
The development of a high-resolution coupled one-dimensional/two-dimensional hydrodynamic model of Charles City, Iowa is presented in this study as part of a larger Iowa Flood Center initiative to create a library of steady inundation maps for communities in Iowa which have a high risk of flooding. Channel geometry from bathymetric surveys and surface topography from LiDAR were combined to create the digital elevation model (DEM) used in numerical simulations. Coupled one- and two-dimensional models were used to simulate flood events; the river channel and structures were modeled one-dimensionally, and the floodplain was modeled two-dimensionally. Spatially distributed roughness parameters were estimated using the 2001 National Land Cover Dataset. Simulations were performed at a number of mesh resolutions, and the results were used to investigate the effectiveness of re-sampling simulation results using higher- resolution DEMs. The effect of removing buildings from the computational mesh was also investigated. During 2011, the stream channel geometry is being changed as part of a recreational park in downtown Charles City. After incorporating the planned changes to the stream channel, the model was used to create a library of steady inundation maps which are available on the Iowa Flood Center website.
Keywords
1D/2D coupled hydraulic model, Floods
Pages
ix, 74 pages
Bibliography
Includes bibliographical references (pages 72-74).
Copyright
Copyright 2011 Matthew Moore
Recommended Citation
Moore, Matthew Roger. "Development of a high-resolution 1D/2D coupled flood simulation of Charles City, Iowa." MS (Master of Science) thesis, University of Iowa, 2011.
https://doi.org/10.17077/etd.ljnvksd4