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Sri Harto Br
Department of Civil and Environmental Engineering, Faculty of Engineering Gadjah Mada University, Yogyakarta, Indonesia
Civil Engineering, Building, Construction & Architecture Environmental Science

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PERFORMANCE OF REPRESENTATIVE UNIT HYDROGRAPH DERIVED FROM DIFFERENT NUMBER OF CASES Sri Harto Br; Ika Tyasning Yudiyanti; Revianti Coenraad
Journal of the Civil Engineering Forum Volume: XXI/2 - May 2012
Publisher : Department of Civil and Environmental Engineering, Faculty of Engineering, UGM

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (356.248 KB) | DOI: 10.22146/jcef.18930

Abstract

Unit Hydrograph (UH) theory is known as the old theory applied in designing water works. This has been developed by Sherman 80 years ago, but up to now its merit is still studied all over the world. Even the last publication was found in the year 2009. There are some numbers of questions following its applications. One major problem is the number of cases used in deriving observed UH to obtain the representative unit hydrograph. Studies have been done in some catchments in Central Java and in Yogyakarta special territory, by comparing design discharge calculated with representative UH derived from several cases and the discharge obtained from frequency analysis. The result showed that representative UH derived from 10 cases or more give more or less constant deviation. Keywords: Unit Hydrograph, Representative Unit Hydrograph, Linearity.  
Co-Authors Ika Tyasning Yudiyanti Revianti Coenraad