Modifikasi Persamaan Hidrograf Satuan Sintesis Metoda SCS Dimensionaless Terhadap Hidrograf Satuan Observasi Das Ciliwung Hulu

Alamsyah, Takdir (2009) Modifikasi Persamaan Hidrograf Satuan Sintesis Metoda SCS Dimensionaless Terhadap Hidrograf Satuan Observasi Das Ciliwung Hulu. Rekayasa Sipil, 5 (1). pp. 38-45. ISSN 1858-3695

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Abstract

Flood and dryness in a region watershed happened because of a climate phenomenon, that is rainfall distribution tend to happened in a brief with high intensity, or drought period happened longer than normal. Generally the cause of flood is the existence of input of rainfall and watershed system. Rainfall covers rain factor of stress intensity, duration rainfall duration and distribution of rain, while system watershed covers topography factor, soil type, land use and system transfer of rain in watershed..Approximation of flooding debit which based on torrential rains can be classified in three ways that is, by the way of empiric formula, by the way of statistic or probability and by the way of unit hydrographer. Rainfall and discharge are important thing in getting hydrographer set of observation and theoretical. The Rainfall that applied is the effective precipitation which calculation is using index method. Whereas direct overflow ( direct run off) in earning by the way of segregation of total run off with base flow applies one of three method that is method Straight Line. Hydrographer ordinates set of observation is gotten by dividing direct overflow ordinate with effective rain. Synthetic unit hydrograph is an unit hydrograph that resulted from watershed characteristic, The modification of unit hydrograph SCS Dimensionless apply to concentration curve (climb curve) and resession curve (recession curve), with observation of unit hydrograph optimated to Ciliwung Hulu watershed based on characteristic.

Item Type:Article
Subjects:G Technology > GA Engineering (General). Civil engineering (General)
Divisions:Jurusan Teknik Sipil > Prog.Studi Teknik Sipil-D3 > Jurnal/Karya Ilmiah
ID Code:138
Deposited By:Mr. OP Repo-2 Puskom
Deposited On:06 Oct 2016 13:16
Last Modified:09 Nov 2016 13:47

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