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Jurnal Teknik Pengairan Jurusan Teknik Pengairan Fakultas Teknik, Universitas Brawijaya Jl. MT. Haryono 167 Malang
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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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Analisis Konservasi Air Berbasis Zero Run Off (Studi Kasus Kawasan Block Office Balai Kota Among Tani Kota Batu) Dini Rosvita Tri A.; Mohammad Bisri; Ussy Andawayanti
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 10 No. 2 (2019)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2019.010.02.08

Abstract

The development of Batu as a tourist and agropolitant city has led to some concern, such as water resources. The number of springs has increasingly declined due to the conversion of forest into agriculture land, residential, and tourist sites. Therefore, it is necessary to maintain equilibrium through the process of extracting and replenishment of rain water by absorbing it into soil pores as water conservation efforts. This study examines the analysis of water conservation based on the concept of zero runoff, located in the Block Office area. It is expected to become input for the Batu City Government and be developed in those area. The analysis of surface runoff is calculated by Rational Method. The dimension of recharged well is calculated by using SNI method 03 2453 2002. The magnitude of design discharge obtained with 5 years return period is 111,408 mm. Reharged well is planned with 5 meters height and 1 meter diameter. Recharged well used for 100 m roof area is 1. Water conservation technology by using recharged well is able to collect runoff from the roof, while retention pool collect and absorb runoff from the parking area, road, and yard.
Analisis Prediksi Debit Sungai Amprong Dengan Model Arima (Autoregressive Integrated Moving Average) Sebagai Dasar Penyusunan Pola Tata Tanam Wiwin Sri Rahayu; Pitojo Tri Juwono; Widandi Soetopo
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 10 No. 2 (2019)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2019.010.02.04

Abstract

An accurate determination of water availability in the 10-day period of the Amprong River has an important role in the planting system to support the agricultural production process in DI. Kedungkandang, because if the availability of water is not precisely determined, there will be an error in regulating irrigation water and its use is not as expected. To overcome these problems, an analysis system is needed that is able to make predictions well. One of the time series models is the ARIMA (Autoregressive Intregated Moving Average) model. The model was built by 9 period discharge data, namely 2008/2009 until 2016/2017, to predict the discharge of period 2017/2018. Of the ten tentative models obtained, there are only five models that are worth using. The best model is the ARIMA model (2,0,1) (1,2,1) 36 with the value of MSE = 22,90; KR = 6.00; MSD = 8.05; MAD = 2.04; MAPE = 18.53 and MPE = -8.98. In second crop season the crop intensity of paddy increased from 55.79% to 64.50%, and the production of GBK increased by 13.50%. While the third crop season paddy crop intensity increased from 37.22% to 49.99%, and GBK production increased by 25.54%.
Analisis Keandalan Data Penakar Hujan Otomatis Sebagai Acuan Koreksi Perkiraan Hujan Radar Roby Hambali; Djoko Legono; Rachmad Jayadi
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 10 No. 2 (2019)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2019.010.02.09

Abstract

The reliability test of automatic rain gauge data in the Mt. Merapi region is highly needed considering that the data is used as a reference to correct the X-band MP radar rainfall estimates error. Rain gauge stations containing unreliable data need to be eliminated so that radar rainfall estimates can be adjusted based on reliable data only. This paper discusses the technique of examining the reliability of rain gauge data using a two-way analysis of variance. The method used in variance analyzing is the Scheffe test, where the difference in the mean value of the two rain gauge stations is compared with the critical value of the Scheffe test. The criteria appointed to declare 'reliable' is if the number of stations that have a significant difference with the reviewed station is less than two. A total of 5939 10-minute rainfall intensity data from 21 rain gauge stations in the Mt. Merapi region were used in the analysis. The results show that six of the 21 rain gauge stations contain unreliable data to use as a reference for correcting radar rainfall estimates. The Scheffe test is considered excellent and straightforward to apply to find out the variance of mean values between rain gauge stations.
Analisis Transpor Sedimen Serta Pengaruh Aktivitas Penambangan Pada Sungai Sombe, Kota Palu, Sulawesi Tengah Muhammad Iqbal Pratama; Djoko Legono; Adam Pamudji Rahardjo
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 10 No. 2 (2019)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2019.010.02.02

Abstract

   Permasalahan sedimentasi yang terjadi di Sungai Sombe merupakan suatu fenomena terbawanya butiran atau partikel sedimen yang berasal dari longsoran tebing sungai. Hal tersebut diperparah ketika terjadi hujan dengan intensitas sedang hingga tinggi menyebabkan terbawanya material sedimen bersama banjir. Selain itu, adanya aktivitas penambangan pasir di Sungai Sombe juga dapat mempengaruhi terjadinya perubahan pada dasar sungai. Tujuan dari penelitian ini adalah untuk mengidentifikasi dan memperkirakan besaran angkutan sedimen dan pengaruh dari adanya aktifikasi penambangan terhadap perubahan dasar sungai pada Sungai Sombe. Pada penelitian ini dilakukan pengukuran langsung di Sungai Sombe untuk memperoleh sampel sedimen dan data morfologi sungai serta pengamatan terhadap aktivitas penambangan yang ada di Sungai Sombe, kemudian data – data yang telah dikumpulkan akan di analisis menggunakan metode Rottner dan Van Rijn. Hasil analisis diperoleh nilai rata – rata debit sedimen di Sungai Sombe dengan kala ulang 1 Tahunan, 2 Tahunan, 5 Tahunan dan 10 Tahunan, yaitu metode Rottner sebesar 2,1 x 107 - 3,8 x 107 Ton/tahun; dan metode Van Rijn sebesar 4,0 x107 – 6,9 x 107 Ton/tahun.
Analisis Kekeringan Pada Daerah Aliran Sungai (DAS) Bedadung Berbasis Sistem Informasi Geografis (SIG) Ainur Rofiq Kurniawan; M Bisri; Ery Suhartanto
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 10 No. 2 (2019)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2019.010.02.03

Abstract

The reduced of water availability toward the needs is one thing that indicates the occurrence of a drought. The drought has received more attention from Government of Jember Regency in the form of a drought disaster area management direction. The location of this research is in the Bedadung River Basin with 13 rainfall station located in the upstream of Rowotamtu AWLR Station. Drought analysis uses the Palmer Drought Severity Index method in the form of index that informs the level of drought in an area. The results of the study showed that drought with extreme dry classification occurs from June to October with drought index values ranging from -1,82 (on June) to -14,14 (on October). Patrang, Jelbuk, Arjasa and Panti sub-districts are areas that have experienced drought with a duration of 5 months. Palmer method meteorological drought index and hydrological drought index (value of AWLR Discharge Standardized Box Cox Transformation (Z)) have unidirectional relationship and high degree of relationship, with the Pearson correlation coefficient, r = 0,91
PEMODELAN DEBIT SUNGAI KAHAYAN MENGGUNAKAN JARINGAN SYARAF TIRUAN BERDASARKAN DATA HUJAN DAN EVAPOTRANSPIRASI Dermawan, Very; Soetopo, Widandi; Alpikarigo, Jano
Jurnal Teknik Pengairan Vol 11, No 1 (2020)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Discharge is one of the bases in a plan for a water resource management activity. Determination of the discharge value can be done through measurements directly in the field or through analysis. With the analysis of rainfall on river discharge can be an alternative in water structure planning, with the right methods the results of the discharge analysis will approach with real hydrological condition. In this study, the analysis was carried out using the Artificial Neural Network method to find out the results of the modeling of river discharge based on rainfall and evapotranspiration data and to know the comparison between model discharge and real discharge. To discover the compatible between modeling discharge with real discharge, calibration and learning of Networks has been done with 6 until 9 years learning data, and verification of the model discharge by 4 until 1 years from the rest of the calibration data. In network learning, epoch 500 until 2000 are used. The error test are Mean Square Error (MSE), Mean Absolute Error (MAE), Relative Error (Kr), Correlation Coefficient (R), Nash-Sutcliffe Efficiency (NSE). The results of comparison between model discharge using the Artificial Neural Network with real discharge, based on the test results discover that in the distribution of 7 year learning data and 3 year test data with epoch 1000 that compatible with criteria and had the best value, based on result of Nash-Sutcliffe Efficiency (NSE) value, and the Correlation Coefficient (R)
PERBANDINGAN METODE EVAPORASI POTENSIAL DI BADAN METEOROLOGI KLIMATOLOGI DAN GEOFISIKA SAWAHAN KABUPATEN NGANJUK, JAWA TIMUR Suhartanto, Ery; Limantara, Lily Montarcih; Rossy Tamaya, Hana Arum
Jurnal Teknik Pengairan Vol 11, No 1 (2020)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

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Abstract

The research aims to at suitable empirical model for reasonable estimation of reference evaporation for Nganjuk region. In this research, the observations were recorded at Sawahan meteorological station are used to calculate the evaporation with the methods of BlaneyCriddle, Penman method, Radiation method, Turc-Langbein-Wundt method, Hamon method, Christiansen method and multiple linier regression. The results of each method compared with the results of the other and validation tests used relative error, Nash-Sutcliffe Efficiency, and Root Mean Square Error. Based on the calculate results it concluded that the appropriate method was multiple linier regression with validation test as follows: rate of relative error is 1,15, rate of Nash Sutcliffe Effiency is 0,70 and rate of Root Mean Square Error is 0,178.
PENENTUAN FORMULASI EMPIRIS YANG SESUAI UNTUK MENGESTIMASI KURVA INTENSITAS DURASI FREKUENSI Wahyuni, Sri; Dwirani, Yosie; Harisuseno, Donny
Jurnal Teknik Pengairan Vol 11, No 1 (2020)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

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Abstract

High rainfall intensity will cause large surface runoff and can lead to negative effects. The IDF curve makes it easy to calculate the design flood. The purpose of this study is to determine the empirical method of rainfall intensity and IDF that are suitable for the study location. The methods used are Talbot, Mononobe, Hasper Der Weduwen, and Van Breen. The result of the calculation found that the most suitable method for this location is Talbot Method. The Talbot Method has an Average Deviation of 1.49, an Average Relative Error of 8.64%, and the Average of Nash-Sutcliffe Efficiency Coefficient (NSE) by 0.98. Then the calculations for the validation of the selected method is using a 2-year return period and 5-year return period have the results of an Average Deviation value of 2.22, the Average Relative Error value of 15.11% and the Average of Nash-Sutcliffe Efficiency Coefficient (NSE) by 0.93.
KAJIAN PENGEMBANGAN JARINGAN DISTRIBUSI AIR BERSIH PADA PDAM TIRTA BARITO KOTA BUNTOK Diana, Eka Wahyu; Sholichin, Mohammad; Haribowo, Riyanto
Jurnal Teknik Pengairan Vol 11, No 1 (2020)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

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Abstract

PDAM of Buntok City is a supplier of clean water needs for the area of Buntok Kota, Hilir Sper, Jelapat and Pamait villages. Utilization of discharge is not optimal and water loss is service constraint. This study aims to realize a distribution network system that is able to serve up to 2038 by evaluating the existing conditions of clean water distribution networks,network development plans, water quality and economic analysis to determine water prices. The results of hydraulic simulation show that the existing conditions of pressure and headloss gradient meet technical criteria while the speed is not up standard. Then the development simulation meets the technical requirements of 0,3-4,5 m/s, headloss gradient 0-15 m/km, pressure 0,5-8 atm. Simulation of residual injection chlorine concentration at the inlet reservoir of 0,4 mg/l are given constantly. The results of residual chlorine simulation meet the criteria of 0,383-0,395 mg/l. Economic analysis found that water prices were Rp.6.100,00/m³,BCR 1,23 IRR 12,14% and 11-year BEP. Analysis of the ability of the community to pay Rp.4.200/m³, the amount of government subsidy is Rp.13.905.747.800,00.
KARAKTERISTIK KECEPATAN ALIRAN DI DEKAT DASAR PINTU PELUAPAN BAWAH (SLUICE GATE) Laksitaningtyas, Agatha Padma; Legono, Djoko; Yulistiyanto, Bambang
Jurnal Teknik Pengairan Vol 11, No 1 (2020)
Publisher : Jurusan Teknik Pengairan, Fakultas Teknik, Universitas Brawijaya

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Abstract

Sluice Gates are the most important and often studied in hydraulic structures that are widely used and found, located in nature or artificial open channels. Sluice gates can be opened and closed at the bottom vertically. The sluice gate functions as a regulator of water flow which functions to control the discharge, control the water level and for monitoring the discharge. Water flowing through the sluice gate can be in a free flow condition or in a submerged flow condition that depends on depth of tailwater. The characteristics of the flow that flows through the sluice are based on the equation of energy and momentum conservation law, which depends on the pressure, velocity and depth of water that is upstream or downstream of the sluice. Hydraulics of sluice especially in free-flow conditions is very dynamic, including the profile of water level, the force that occurs on the sluice gate, or the velocity distribution of the bottom sluice gate, which is largely ignored. There are several basic development formulas of flows through the floodgates, especially in the development of vena contracta. Vena contracta will produce the values of the coefficient of discharge (Cd) and the coefficient of contraction (Cc) obtained from the calculation ratio of existing methods. Calculation of events theoretically and through experiments in the laboratory. However, the equation of discharge through the sluice gate is not very effective when used in a large opening condition and in a fully submerged condition.

Page 24 of 38 | Total Record : 374

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