ANALISA RUN OFF PADA SUB DAS LEMATANG HULU

VERRINA, GINA PUTRI and Putranto, Dinar Dwi Anugerah and Sarino, Sarino (2013) ANALISA RUN OFF PADA SUB DAS LEMATANG HULU. Undergraduate thesis, Sriwijaya University.

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Abstract

Riinoff is one of the faclors t ha t can cause landslides. This phenomenon occurs in Lematang watershed especially in upstream region. The purpose of this research is t o determinerunoff t ha t occur i n LemutangHulu sub-watershed. In the analysis of runoff, LematangHulu watershed w as drvided into 5 sub-watershed, namely Sub DAS L Hulu 1 - Sub DAS L Hulu 5. The method used in analyzing this runoff is Rational one. It considers runoff coefficient, the intens i ty of rainfall and catchment area. AU parameter s runoff's calculation obtained by using spatial interpretation of satellite images for land use (C),boundary f area in the drainage (A) from analysis of DEM ( Digital Elevation Model ), and the distribution of rainfall intens i ty (I) using Algebra Average & Mononobe formula. The result show t ha t in Sub DAS L Hulu 3, one of the sub-watershed should receives extra attention be cause i t yields high runoff which is equal t o 679,8 m3 s. It may cause ftood or landslide in the future.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	runoff, watershed, Rational
Subjects:	T Technology > TC Hydraulic engineering. Ocean engineering > TC801-978 Irrigation engineering. Reclamation of wasteland. Drainage
Divisions:	03-Faculty of Engineering > 22201-Civil Engineering (S1)
Depositing User:	Mrs Furika Furika
Date Deposited:	16 Jun 2023 04:05
Last Modified:	16 Jun 2023 04:05
URI:	http://repository.unsri.ac.id/id/eprint/111317

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