Hydrological Analysis In Selecting Flood Discharge Method In Watershed Of Kelara River

INTEK: Jurnal Penelitian

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Title Hydrological Analysis In Selecting Flood Discharge Method In Watershed Of Kelara River
 
Creator Mustamin, Muhammad Rifaldi
Maricar, Farouk
Karamma, Riswal
 
Subject Design Flood Discharge; Synthetic Unit Hydrograph; Measured Discharge Data; Kelara Watershed (DAS)
 
Description For Engineers involved in planning and construction of water resources building, hydrology becomes very important data. In terms of planning stage in water resources especially waterworks, it is known that design flood discharge closed to field realistic conditions is often needed in order that a planned construction is able to control flood discharge. Several previous researches in choosing flood discharge selection method have diverse depending on observed watershed. One method in determining selected flood discharge by verification using Creager diagram, by comparing discharge calculation results of several Synthetic Unit Hydrograph (SUH) with infrastructure flood discharge (AWLR result) in observation point. This research aims to obtain  the most suitable synthetic unit hydrograph and close to analysis result of measured discharge frequency, and Creager diagram in Kelara watershed (DAS). Based on the calculation of design flood discharge according to rainfall data using synthetic unit hydrograph of Nakayasu, ITB I, ITB II, and SCS (HEC-HMS) as well as the calculation of design flood discharge according to collected data, it is concluded that the synthetic unit hydrograph method closest to design flood discharge with measured discharge rate and Q1000 rate of Creager diagram is SCS. Flood discharge rate obtained according to HSS SCS method using HEC-HMS  4.8 application in period of 2 years  is 658,40 m3/s, 25 years is 682,70 m3/s, 50 years is 787,00 m3/s, 100 years is 885,70 m3/det, and 1000 years is 1202,60 m3/s
 
Publisher Politeknik Negeri Ujung Pandang
 
Contributor River Basin Organization of Pompengan Jeneberang (BBWS Pompengan Jeneberang), Geospatial Information Agency (BIG)
 
Date 2021-12-20
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion


 
Format application/pdf
 
Identifier http://jurnal.poliupg.ac.id/index.php/Intek/article/view/2874
10.31963/intek.v8i2.2874
 
Source INTEK: Jurnal Penelitian; Vol 8, No 2 (2021): October 2021; 141-150
INTEK: Jurnal Penelitian; Vol 8, No 2 (2021): October 2021; 141-150
2615-5427
2339-0700
10.31963/intek.v8i2
 
Language eng
 
Relation http://jurnal.poliupg.ac.id/index.php/Intek/article/view/2874/pdf
 
Rights Copyright (c) 2021 Muhammad Rifaldi Mustamin, Farouk Maricar, Riswal Karamma
http://creativecommons.org/licenses/by/4.0
 

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