Perkiraan Koefisien-koefisien Karakteristik Daerah Aliran Sungai Krengseng untuk Membangun Kurva-Durasi Debit

The flow-duration curve at a site is most useful tool for evaluating flows in water resources development projects. Flow-duration curves are based on cotinuous stream flow data, where stream flow meuserements are not available, precipitation and potensial evapotranspiration records can be used to ca...

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Main Authors: Sri Sangkawati Sachro, Sugiyanto Sugiyanto, Hary Budieny
Format: Article
Language:English
Published: Universitas Diponegoro 2014-11-01
Series:Media Komunikasi Teknik Sipil
Subjects:
Online Access:http://ejournal.undip.ac.id/index.php/mkts/article/view/7831
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author Sri Sangkawati Sachro
Sugiyanto Sugiyanto
Hary Budieny
author_facet Sri Sangkawati Sachro
Sugiyanto Sugiyanto
Hary Budieny
author_sort Sri Sangkawati Sachro
collection DOAJ
description The flow-duration curve at a site is most useful tool for evaluating flows in water resources development projects. Flow-duration curves are based on cotinuous stream flow data, where stream flow meuserements are not available, precipitation and potensial evapotranspiration records can be used to calculate continuous flows. Calculation of monthly flows from meteorologic data are based on the water balance in watershed. The water balance equation is Precipitation – Actual evapotranspiration + Storage = Runoff. This calculation use coefficients that represent watershed characteristics, that will change from one watershed to another. The watershed characteristic coefficients changes will correlate with changes in vegetation, soils, and subsurface geology. This study is an attempt to estimate the watershed characteristic coefficients to calculate monthly streamflows in Krengseng River at Diponegoro Dam site. The  watershed characteristic coefficients analysis using F.J.Mock Model and NRECA Model. Resuls of watershed characteristic coefficients  analysis using F.J.Mock are, Expose surface, m = 50%, Soil moisture capacity, SMC = 200 mm, Infiltration factor, IF = 0.45, Recesion coeffisien, RC =0.70. Watershed characteristic coefficients using Model NRECA are, Index soil moisture capacity, Nominal:100+(0.25xmean annual precipitation), Base flow parameter, PSUB = 0.30 and Index groundwater storage, GWF=0.50.
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spelling doaj.art-9969ecfe627049479137a01af1a0f2012022-12-22T02:02:20ZengUniversitas DiponegoroMedia Komunikasi Teknik Sipil0854-18092549-67782014-11-01191192610.14710/mkts.v19i1.78316725Perkiraan Koefisien-koefisien Karakteristik Daerah Aliran Sungai Krengseng untuk Membangun Kurva-Durasi DebitSri Sangkawati Sachro0Sugiyanto Sugiyanto1Hary Budieny2Jurusan Teknik Sipil Fakultas Teknik Universitas Diponegoro Jl. Prof. Soedarto SH. Tembalang Semarang 50275Jurusan Teknik Sipil Fakultas Teknik Universitas Diponegoro Jl. Prof. Soedarto SH. Tembalang Semarang 50275Jurusan Teknik Sipil Fakultas Teknik Universitas Diponegoro Jl. Prof. Soedarto SH. Tembalang Semarang 50275The flow-duration curve at a site is most useful tool for evaluating flows in water resources development projects. Flow-duration curves are based on cotinuous stream flow data, where stream flow meuserements are not available, precipitation and potensial evapotranspiration records can be used to calculate continuous flows. Calculation of monthly flows from meteorologic data are based on the water balance in watershed. The water balance equation is Precipitation – Actual evapotranspiration + Storage = Runoff. This calculation use coefficients that represent watershed characteristics, that will change from one watershed to another. The watershed characteristic coefficients changes will correlate with changes in vegetation, soils, and subsurface geology. This study is an attempt to estimate the watershed characteristic coefficients to calculate monthly streamflows in Krengseng River at Diponegoro Dam site. The  watershed characteristic coefficients analysis using F.J.Mock Model and NRECA Model. Resuls of watershed characteristic coefficients  analysis using F.J.Mock are, Expose surface, m = 50%, Soil moisture capacity, SMC = 200 mm, Infiltration factor, IF = 0.45, Recesion coeffisien, RC =0.70. Watershed characteristic coefficients using Model NRECA are, Index soil moisture capacity, Nominal:100+(0.25xmean annual precipitation), Base flow parameter, PSUB = 0.30 and Index groundwater storage, GWF=0.50.http://ejournal.undip.ac.id/index.php/mkts/article/view/7831Krengseng riverWatershed characteristicsMock modelNRECA model
spellingShingle Sri Sangkawati Sachro
Sugiyanto Sugiyanto
Hary Budieny
Perkiraan Koefisien-koefisien Karakteristik Daerah Aliran Sungai Krengseng untuk Membangun Kurva-Durasi Debit
Media Komunikasi Teknik Sipil
Krengseng river
Watershed characteristics
Mock model
NRECA model
title Perkiraan Koefisien-koefisien Karakteristik Daerah Aliran Sungai Krengseng untuk Membangun Kurva-Durasi Debit
title_full Perkiraan Koefisien-koefisien Karakteristik Daerah Aliran Sungai Krengseng untuk Membangun Kurva-Durasi Debit
title_fullStr Perkiraan Koefisien-koefisien Karakteristik Daerah Aliran Sungai Krengseng untuk Membangun Kurva-Durasi Debit
title_full_unstemmed Perkiraan Koefisien-koefisien Karakteristik Daerah Aliran Sungai Krengseng untuk Membangun Kurva-Durasi Debit
title_short Perkiraan Koefisien-koefisien Karakteristik Daerah Aliran Sungai Krengseng untuk Membangun Kurva-Durasi Debit
title_sort perkiraan koefisien koefisien karakteristik daerah aliran sungai krengseng untuk membangun kurva durasi debit
topic Krengseng river
Watershed characteristics
Mock model
NRECA model
url http://ejournal.undip.ac.id/index.php/mkts/article/view/7831
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