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Application of SCS CN Method in HEC-HMS in Shihmen Watershed Simulation of Rainfall-Runoff Hydrologic Model

Title: Application of SCS CN Method in HEC-HMS in Shihmen Watershed Simulation of Rainfall-Runoff Hydrologic Model.
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Name(s): Chang, Chi-Wen, author
Huang, Wenrui, professor directing thesis
Hu, Bill X., committee member
Hilton, Amy Chan, committee member
Department of Civil and Environmental Engineering, degree granting department
Florida State University, degree granting institution
Type of Resource: text
Genre: Text
Issuance: monographic
Date Issued: 2009
Publisher: Florida State University
Place of Publication: Tallahassee, Florida
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: A catchment is usually delineated as many sub-basins by using Geographical Information System (GIS) before HEC-HMS is applied. How many sub-basins should be delineated by the users is always a problem. If the range of sub-basins is too large, the spatial heterogeneity will be too difficult to recognize. On the other hand, it will be too complicated to process the spatial data for too many sub-basins. The purpose of this study is to apply cluster analysis for catchment delineation and to study whether the SCS curve number (SCS CN) method is appropriate for estimation of direct runoff in Taiwan. The DaHan Creek, a tributary of the DanShui River, is chosen for case study. In the cluster analysis, the values of curve number, surface slop, and the specified rain gages weighting for each sub-basin are used as variables. According to the discharge hydrograph of 3 selected rainfall events, the hydrologic parameter characteristics of the basin can be chosen by the trial and error process. The results show that CN value has correlated to hydro-geo factors and has positive correlation with peak flow.
Identifier: FSU_migr_etd-3900 (IID)
Submitted Note: A Thesis submitted to the Department of Civil and Environmental Engineering in partial fulfillment of the requirements for the degree of Master of Science.
Degree Awarded: Summer Semester, 2009.
Date of Defense: January 5, 2009.
Keywords: Rainfall-Runoff, Storm Water, ShihMen Watershed, Hydrologic Modeling, HEC-HMS, GIS
Bibliography Note: Includes bibliographical references.
Advisory Committee: Wenrui Huang, Professor Directing Thesis; Bill X. Hu, Committee Member; Amy Chan Hilton, Committee Member.
Subject(s): Civil engineering
Environmental engineering
Persistent Link to This Record: http://purl.flvc.org/fsu/fd/FSU_migr_etd-3900
Owner Institution: FSU

Choose the citation style.
Chang, C. -W. (2009). Application of SCS CN Method in HEC-HMS in Shihmen Watershed Simulation of Rainfall-Runoff Hydrologic Model. Retrieved from http://purl.flvc.org/fsu/fd/FSU_migr_etd-3900