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Jurnal Teknik Pengairan: Journal of Water Resources Engineering
Published by Universitas Brawijaya
ISSN : 20861761     EISSN : 24776068     DOI : 10.21776
Core Subject : Engineering,
Engineering
Jurnal Teknik Pengairan is a scientific journal published regularly twice per year by Faculty of Engineering, Universitas Brawijaya. The paper submitted in this journal covers the fields of Water Resources Information System, Water Resources Conservation, Water Resources Utilization and Efficiency, Water Structure Engineering Planning and Water Resources Engineering Basic Knowledge. The submitted paper can be a summary of research reports or scientific literature review. The language used in this journal is either English or Indonesian.
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Articles 374 Documents
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Studi Pendugaan Sisa Usia Guna Waduk Sutami Dengan Pendekatan Sedimentasi Fidari, Jadfan Sidqi; Bisri, Mohammad; Suhartanto, Ery
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 4, No 2 (2013)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

Sutami Dam is a dam with the largest reservoir with managed by Perum Jasa Tirta I. This reservoir has been operating for more than 39 years (operates in 1972 and using reference to recent data in 2011). This study was performed to determine the trend of sediment discharge and reservoir live time in order to find out how the rest of the remaining Sutami reservoir for reservoir operations. Data analysis is used as the data for 6 years period and in 1972 data for comparison. Point source of sediment in the reservoir is divided into two points, Sutami sediments by direct inflow to the the Sutami Reservoir (Metro River) and outflow from Sengguruh Reservoirs (Brantas River and Lesti River). The third point is the calculation of sediment discharge to determine the most influential point sediment carrier in Sutami Reservoir. Reservoir live time to the rest of Sutami calculated using three methods of approach. Volume approach, elevation approach, and empirical approaches. 2 Tanpa nomer halaman The point that has the most impact is of the Brantas River (inflow from Sengguruh Reservoir) with Qs = 2.27 kg/sec (2011), then from the Metro River with Qs = 1.97 kg/sec (2011). ). Based on the analysis of the remaining life time for Sutami Reservoir using three methods of approach, it is known to Sutami Reservoir live time trends tend to decrease. Elevation control point (+233.3 m) with elevation approach and volume approach gives results for the remaining life of 5 years and 1.5 years, while the empirical approach with 97% trap efficiency give results 9 years for the remaining life time of Sutami Reservoir.Key words: Sutami Reservoir, Sedimentation, Reservoir Live Time
Analisa Kuantitas Dan Kualitas Airtanah Di Kecamatan Kubu Kabupaten Karangasem Provinsi Bali Wijayanti, Putu Ratih; Sholichin, Moh.; Sisinggih, Dian
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 4, No 2 (2013)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

Kubu Subdistrict is located at Karangasem District and belongs to Tejakula Groundwater Basin. It is droughty region with few rainfalls compared to other region. The purpose of this research is to determine the quantity and the quality of groundwater for agriculture. The analysis of groundwater quantity is by applying the pumping test. The pumping test is divided into two stages, which are well test and aquifer test. Result of well test at 7 (seven) production wells is obtaining the optimum discharge ranging from 10.107 liter/second to 18.604 liter/second. Aquifer test analysis involves the first stage is to determine the type of flow from each well that is steady or unsteady flows, and then determine the method that will be used based on the type of flow and type of aquifer. In determining the type of flow is obtained steady flow types for 3 (three) wells and unsteady flow types for 4 (four) wells. Groundwater quality analysis is conducted by Aquachem software version 2011.1 (demo version). Based on the analysis of groundwater quality, groundwater is containing low and medium Sodium and have high and very high salinity.Keywords: quantity, quality, groundwater, wells test, aquifer test, Sodium.
Studi Optimasi Pola Operasi Waduk Sutami Akibat Perubahan Iklim Irvani, Harvy; Bisri, Mohammad
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 4, No 2 (2013)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

The change of global climate influences the temperature, relative humidity, sunlight time, wind rate, rain rate, and river debit. The higher intensity of rain rate after the change of climate influences the fluctuation of river debit in rainy or dry season. Flood and dryness are natural occasions, which are usually occurring. Sutami Reservoir is functioned to retain water excess from rain and river debit from Brantas River, which in the future it would be stored. River debit is used to fulfill water need in dry season. Therefore, to face the extreme effect, there is needed management planning of reservoir operation managed well and optimally. Methodology used in climate change analysis toward operation model of Sutami Reservoir is Stochastic Dynamic Program and it is obtained a policy system of operation model output before and after climate change. Based on the result of analysis, it shows that there is climate change in Sutami Reservoir where it is signed that optimally reservoir output is changed. In the table of optimally reservoir output shows that before climate change the output policy is still in good condition while after it, the output policy is change where there is any displacement of wet season and dry season in which it causes the debit to Sutami Reservoir changed from what had been expected.Key words: climate change, reservoir operation model, stochastic dynamic program
Studi Penilaian Indikator Kinerja Das Konaweha Akibat Perubahan Tata Guna Lahan Berdasarkan Kriteria Hidrologis Andono, Riwin; Limantara, Lily Montarcih; Juwono, Pitojo Tri
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 5, No 1 (2014)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

Watershed assessment using hydrology indicators is a quick and effective way to know the performance of the Konaweha watershed due to land use changes. Konaweha watershed is located in Sulawesi Tenggara Province, which includes Kendari City, Konawe, and Kolaka with its ± 6020 km basin area. This study was conducted to evaluate the response of Konaweha watershed due to land use changes in the year of 2000 - 2010, and land use spatial direction (RTRW) of Sulawesi Tenggara Province, using spatial analysis methods by applying AVSWAT software. Watershed performance indicators which is used in the assessment indicators is discharge to know the value of Coefficient River Regim (KRS), runoff coefficient, and sediment transport in Konaweha Watershed. Based on both of the three indicators and the calculation of the spatial analysis showed that Konaweha Watershed is in good category. KRS values obtained in 2000 and 2010, as well as the spatial direction in between 99 - 102 indicating Konaweha watershed in medium category. Runoff coefficient indicator showed value in between 0.045 - 0.1 which indicating watershed in the good category. Furthermore, sediment transport indicators show the value of 0.5 - 0.105 were also indicating in good category. KRS values of Konaweha watershed which is in medium category, it is indicated that Konaweha watershed has poor capacity to retain and storage of water infiltration. Construction of dams, ponds, and other technical efforts are needed to be done in order to improve the performance of DAS Konaweha with decreasing the indicator score of River Regim Coefficient (KRS)Key words: Watershed Assesment, Land user changes, Hidrology
Pemodelan Debit Menggunakan Metode Arima Guna Menentukan Pola Operasi Waduk Selorejo Pramujo, Bambang; Juwono, Pitojo Tri; Soetopo, Widandi
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 5, No 2 (2014)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

Selorejo dam is located in the village of Pandansari, Ngantang Sub Regency, Malang Regency. It is located in Kali Konto, a tributary of the Brantas River. Selorejo dam has a very important function, especially for the purposes of hydroelectric power generation and irrigation. As an old dam, completed in 1970, Selorejo experiences a decreasing volume of its reservoir due to a high sedimentation rate. The decreasing volume Selorejo reservoir has impacted the function of the dam and it is important to formulate a better operating rule to optimalize the current volume. During the planning of the operating rule of Selorejo reservoir, Perum Jasa Tirta I as an operator of the Selorejo Dam use a dependable discharge in predicting inflow discharge. This study predict the inflow discharge using ARIMA forecasting method, which then used to formulate a new operating rule. This study used 10 years of 10 days period inflow discharge data, which 9 years of it used to generating the ARIMA model and the last 1-year data for calibration. The study result suggest that the best ARIMA model in predicting the dam’s inflow discharge is ARIMA (1,1,1)(2,1,1) 36. Compare to a current method, this model is proved predicts better inflow discharge which has smaller Relative Error (KR) to the real data (Model’s KR 5.5 and Operator’s KR 17.8).Keywords: ARIMA, inflow discharge, the operating rule of reservoir, reservoir of Selorejo Dam.
Analisa Penataan Outlet Channel Sungai Karang Anyar Di Kota Tarakan Irianto, Danang Bimo; Sisinggih, Dian; Priyantoro, Dwi
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 5, No 2 (2014)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

Karang Anyar outlet channel has the outlets that directly flow in to the sea and it’s influenced by the tides. Flooding often occurs when rain along with high tides. The outlet channel has a very gentle slope,initial data mentioned that outlet channel length is approximately 1625 m, elevation in the upstream = +4.40 m and +0.10 m in the downstream, with an average slope = 0.003. Elevation embankment upstream = +6.00 m and downstream = +1.50 m. Meanwhile, according to secondary data, the flood with 10 th years return periode that flow in the outlet channel is 66.4 m 3 /sec and the flood with 25 th years return periode is 75.16 m 3/sec. On average, a tide water level is +1.5 m above sea level. Based on the variety of modeling, the action concepts that can eliminate the flooding are these following action: widening the channel dimension, build the embankment on channel side, making the local storage for each sub-catchment in the downstream, making the gate for the local storage, making tidal gate to prevent the tide come into the system, making the retarding basin to accommodate flood waters from upstream when the outlet is closed due to high tide.Keyword: Outlet channel, Regional arrangement, Outlet, Karang Anyar, Tarakan
Rencana Penjadwalan Pembagian Air Irigasi Daerah Irigasi Paguyaman Kanan Kabupaten Boalemo Provinsi Gorontalo Nadjamuddin, Dedy Febrianto; Soetopo, Widandi; Sholichin, Moh.
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 5, No 2 (2014)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

Water availability is a major problem to be considered in determining cropping patterns in irrigated areas. Considering the importance of irrigation activities, there should be plan an optimal utilization of water in order to get maximum benefit from the existing water supply according to their function. Irrigation area of paguyaman is planned with two doors intercepts. Irrigation Area Paguyaman on right side, is planned to irrigate 4,176 ha of land where still have potential in the irrigated area expansion. Potential expansion of irrigated area is 1500 ha. Paguyaman Irrigation Area is still in the implementation stage of physical construction. The approach used as the basis arrangement for the water distribution is the approach in terms of a balance between the availability of water to the water requirements for crops. Allocating and distribution of water required in an integrated calculation attended by using a Linear Program.Key words: Optimization, Irrigation Area, Linear Program, Solver.
Model Spasial Dan Faktor Pengontrol Akuifer Airtanah Dangkal Untuk Penentuan Zona Konservasi Air Tanah Di Kelurahan Oebufu Kota Kupang Karels, Dolly Willy
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 5, No 2 (2014)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

The Oebufu Village geologically composed of limestones that hydrological growing in this area should be karst hydrology, but at this location, shallow groundwater are found in dig well at 5.63 m to 25.26 m depth, that are not commonly found in karst area. Therefore, the study aims to determine the spatial model of shallow groundwater in the study area and its controlling factors. Geoelectric equipment used to determine the presence of aquifer, IPI2WIN and RES2DINV software used to analyze the results of geoelectric, while the Surfer software used to create the shallow groundwater aquifer spatial model. The results of the study provide the output of the spatial model of shallow groundwater; controlling factors of the shallow groundwater are: (a) lithology, a soluble form of limestone and formed the secondary porosity; (b) the rock exposed, exposed rock thickness determines the depth of the aquifer; (c) hydrological system, is different hydrological system between the back and the foothills; and groundwater conservation zones covering the entire study site. Making watertight septic tank to accommodate domestic waste is a groundwater pollution control efforts in Oebufu Village, that its geological formation were limestone.Key word: Spatial model, controlling factor, shallow groundwater, conservation zone, Oebufu Village
Studi Analisa Kebutuhan Jumlah Stasiun Hujan Berdasarkan Evaluasi Perbandingan Antara Analisa Hidrograf Banjir Dan Banjir Historis Pada Das Limboto Provinsi Gorontalo Djafar, Haris; Limantara, Lily Montarcih; Asmaranto, Runi
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 5, No 2 (2014)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

In the hydrologic analysis activities, the Errors in basic hydrological data monitoring in a drainage area of the river will result in data are not correct and lead to the result of planning and management of water resources is not efficient and effective. The errors are usually caused by a number of rainfall stations in the watershed inadequate and dispersal patterns of uneven rainfall stations. The purpose of this study is to obtain the results of the evaluation of the amount of rainfall stations WMO standards based on existing conditions, to determine the comparison between the design flood discharge KaganRodda method and the design flood discharge conditions using the existing station network, and to obtain recommendations amount and location of rainfall stations positions. This study conducted in watershed of Limboto, with an area of watershed is 902.91 km2 .The results of this study are recommending 16 rainfall stations where the 4 stations is the existing stations, with each station rainfall density is 8.038 km.Keywords: Flood, Kagan-rodda, Rain Station, Rain Station density.
Studi Pengendalian Banjir Sungai Remu Kota Sorong Provinsi Papua Barat Pramana, Yanuar Hendra; Harisuseno, Donny; Dermawan, Very
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 5, No 2 (2014)
Publisher : Fakultas Teknik, Universitas Brawijaya

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Abstract

Sorong City where is located in West Papua Province has often experiences flooding due to overflow of Remu River. This study aims to find the proper flood management alternatives through hydrology, hydraulic, and economy approach. Based on hydrology analysis with Log Pearson III method, the highest historical rainfall that ever occured is the rainfall with return period of 16 years, that is 224.2 mm. The HEC RAS 4.1. simulation results n value of 0.021 with relative error of 2.64%. The proper flood managements are dike and retarding basin and the both of the alternatives use return period of 25 years. Dike has been choosen as then proper alternative with total ranking of 0.53 based on priority scale determination using Analyrical Hierarchy Process method with technique, economy, and easy implementation considerations.Keywords: Flood, HEC RAS, Analytical Hierarchy Process, Dike, Retarding Barsin.

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