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All Journal Jurnal Teknik Pengairan: Journal of Water Resources Engineering Unram Journal of Community Service (UJCS)
Ery Setiawan
University of Mataram
Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Social Sciences

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Journal : Jurnal Teknik Pengairan: Journal of Water Resources Engineering

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Analisis Ketersediaan Air Menggunakan Model Rain Run NRECA dan Tanki di DAS Babak Ida Bagus Subrata; Hartana Hartana; Ery Setiawan
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 11 No. 2 (2020)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2020.011.02.01

Abstract

Dalam penelitian ini akan ditinjau adalah pemodelan Nreca maupun Tanki pada Bendung Keru di DAS Babak yang memiliki ketersedian catatan debit air. Pemodelan dimulai dari kalibrasi model rain run sehingga mendapatkan koefisien Nreca dan Tanki pada AWLR Keru. Kemudian perhitungan debit pada Bendung Keru menggunakan data spasial serta data curah hujan dari ARR Keru. Hasil antara pemodelan pada Nreca dan Tanki dibandingkan dengan catatan debit pada Bendung Keru. Hasil dari penelitian ini adalah nilai koefisien model pada AWLR Keru di DAS Babak WS Lombok: a) Koefisien model NRECA yaitu untuk Tampungan kelengasan awal : 727; Tampungan kelengasan akhir: 312; Koefisien Reduksi: 0.27; Koefisien PSUB: 0.43; Koefisien GWF: 0.1; Beda tampungan awal dan akhir: 12; Nilai Korelasi: 0.84; Nilai Volume Error (VE): 0.33; b) koefisien model tanki yaitu Koefisien Tanki 1: Tank Awal : 868; H 1.1 : 29; H 1.2 : 28; F 1.1 : 794; F 1.2 : 661; B1: 254; Koefisien tanki 2: Tank Awal : 330; B2 : 585; Nilai Korelasi : 0.75; Nilai Volume Error (VE): 0.31. Dalam pemodelan debit untuk perhitungan ketersediaan air yang optimal di DAS Babak WS Lombok terutama pada Bendung Keru menggunakan model Tanki.
Evaluasi Rasionalisasi Stasiun Hujan Metode Kagan Rodda dengan Mempertimbangkan Kriteria Penentuan Lokasi Pembangunan Stasiun Hujan Reza Renaldhy; I Wayan Yasa; Ery Setiawan
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 12 No. 1 (2021)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2021.012.01.05

Abstract

This study aims to evaluate the rain station rationalization method using Kagan. In its application, the Kagan method can give results in the form of the number of stations and the location of the placement of the rain station network in an area. However, in its application in the field, the recommendation in the form of placement points does not meet the location criteria for the construction of a rain station. The results of the evaluation carried out at WS Sumbawa show that there are 116 rain stations that need to be added, but after being evaluated using Google Earth to see the suitability of the location against the criteria for the location of the rain station construction, only 36 points meet the criteria. To optimize this method, the recommendation points that do not meet the requirements are moved to the nearest water structure location such as a dam, embung or weir, so that 19 points are moved to the nearest water structure and 61 points are not recommended for the construction of a rain station. These results prove that the recommended number and placement points from the rationalization analysis of the Kagan method cannot be directly applied in the field, the recommendations given must be re-evaluated by taking into account the principles in determining the location of rain post construction.
Co-Authors Atas Pracoyo Dewandha Mas Agastya Didi Supriyadi Agustawijaya Hartana Hartana Hasyim Hasyim Humairoh Saidah I Dewa Gede Jayanegara I Wayan Yasa Ida Bagus Subrata Karyawan, I Dewa Made Alit Reza Renaldhy