FLOOD ROUTING MODEL OF DENGKENG RIVER WITH COMBINATION O’DONNEL AND MUSKINGUM-CUNGE METHOD AND MUSKINGUM EXTENDED METHOD

Maria Anisa, Naulita and Sobriyah, and Qomariyah, Siti (2015) FLOOD ROUTING MODEL OF DENGKENG RIVER WITH COMBINATION O’DONNEL AND MUSKINGUM-CUNGE METHOD AND MUSKINGUM EXTENDED METHOD. Other thesis, Universitas Sebelas Maret.

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    Abstract

    Flood routing model aims to estimate the stream hydrograph on a river. The required data for Muskingum method analysis are upstream and downstream hydrographs. With those data, it should be able to make some flood routing models. Problems that usually come up are unavailability of measured hydrograph streaming data in upper or down stream on a river. The method doesn’t calculate any tributaries. Flood routing models consider the minor stream that converging to major stream is flood routing model of Dengkeng river with Combination O’donnel and Muskingum-Cunge Method and Muskingum Extended Method. This research aims to determine the suitability model of the result simulation hydrograph and observation hydrograph using both methods. The research was a descriptive-quantitative analysis. Analysis research usedO’Donnel dan Muskingum-Cunge Combination Method and Muskingum Extended Method. Upstream hydrograph is estimated with HSS Gama I method. Location of this research in Dengkeng River, Klaten, Central Java. Data was obtained by Balai Besar Wilayah Sungai Surakarta, PSDA Department and Perum Jasa Tirta I Surakarta. Result of flood routing model by using O’Donnel dan Muskingum-Cunge combination method and measured hydrograph of observation on May 1 st, 2011 were ∆Qp =27,79%; ∆V =59,20% and ∆tc=22,22%, on December 20th, 2011 were ∆Qp=2,82%; ∆V=69,58%; ∆tc=25%. Result of flood routing model by using Muskingum Extended method on May 1st, 2011 were ∆Qp=30,17%; ∆V=13,78%; and ∆tc=62,5%, on December 20th, 2011 were ∆Qp =5,5%; ∆V=67,44%; and ∆tc=22,22%. Both methods are not recommended to use for Dengkeng Watershed because the hydrograph simulation result of both methods have a significant dissimilarity with the result of measured hydrograph by observation. Keyword : Flood Routing, Dengkeng River, suitability model.

    Item Type: Thesis (Other)
    Subjects: T Technology > TA Engineering (General). Civil engineering (General)
    Divisions: Fakultas Teknik > Teknik Sipil
    Depositing User: Faisal M
    Date Deposited: 07 Sep 2015 19:15
    Last Modified: 07 Sep 2015 19:15
    URI: https://eprints.uns.ac.id/id/eprint/18182

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