Degree Type

Thesis

Date of Award

2007

Degree Name

Master of Science

Department

Agricultural and Biosystems Engineering

Major

Environmental Science

First Advisor

Ramesh S. Kanwar

Second Advisor

Roy Gu

Third Advisor

U. Sunday Tim

Abstract

The flood frequency analysis at or nearby the confluence of two tributaries is of interest because it is necessary for the design of the highway drainage structures. However, The shortage of the hydrological data at the confluence point makes the flood estimation challenging. This thesis presents a practical procedure for the flood frequency analysis at the confluence of two streams by multivariate simulation of the annual peak flow of the tributaries based on joint probability and Monte Carlo simulation. Copulas are introduced to identify the joint probability. The results of two case studies are compared with the flood estimated by the univariate flood frequency analysis based on the observation data. The results are also compared with the ones by the National Flood Frequency program developed by United State Geological Survey. The results by the proposed model are very close to ones by the unvariate flood frequency analysis.

DOI

https://doi.org/10.31274/rtd-180813-7429

Publisher

Digital Repository @ Iowa State University, http://lib.dr.iastate.edu/

Copyright Owner

Cheng Wang

Language

en

Proquest ID

AAI1447555

OCLC Number

213331565

ISBN

9780549335566

File Format

application/pdf

File Size

126 pages

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