PERFORMANCE OF REPRESENTATIVE UNIT HYDROGRAPH DERIVED FROM DIFFERENT NUMBER OF CASES
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.
Author: Sri Harto Br, Ika
Tyasning Yudiyanti, Revianti Coenraad
Journal Code: jptsipilgg120050
