Rogers, Jerry R.2022-10-142022-10-141977-1019773873528https://hdl.handle.net/10657/12354The self-calibrating watershed model, OPSET, was applied to Cypress Creek, a 285 square mile. Gulf Coast watershed in Harris County, Texas. The model, originally developed at the University of Kentucky as a refinement of the Stanford Watershed Model, computes annual hydrographs, compares the values with stream gage records, and adjusts the watershed parameters until the best objective match is obtained. Modifications were made of the input options and optimizing procedures. The six years of data used (from the period 1951 to 1975) show good correlations of annual and monthly flows and consistent values of land phase parameters. Large floodplain storages and localized rainstorms prevented good optimization of channel parameters. It is suggested that the unit hydrograph method of channel routing be replaced by the kinematic wave technique. Results were extrapolated to future land use conditions, showing increases in peak flows with urbanization.application/pdfenThis item is protected by copyright but is made available here under a claim of fair use (17 U.S.C. Section 107) for non-profit research and educational purposes. Users of this work assume the responsibility for determining copyright status prior to reusing, publishing, or reproducing this item for purposes other than what is allowed by fair use or other copyright exemptions. Any reuse of this item in excess of fair use or other copyright exemptions requires express permission of the copyright holder.Thesisreformatted digital