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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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An Assessment of Sea Wall Capabilities at Penimbangan Beach in Buleleng Regency Yanti Dewi, Ni Komang; Aryastana, Putu; Gede Suranata, Putu; Windy Candrayana, Kadek
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 15 No. 2 (2024)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2024.015.02.4

Abstract

Penimbangan Beach, located in Bakti Seraga Village, Buleleng, has functioned as an area for fishermen to catch fish but has now been changed to become a tourism destination. The coastline of Penimbangan Beach is 803 meters, according to direct measurements with coastal protection sea wall along the shoreline in the field. With the change in function, many traders’ kiosks are now selling on the sea wall, and coastal protection has caused damage. Besides that, wave overtopping often occurs during high tides, causing objects that should be protected by the sea wall to be exposed to wave overtopping. Based on the issues mentioned above, a coastal damage assessment is required, divided into 16 segments, each segment being 50 meters. The results of the coastal damage assessment yielded the scales of Priority C (preferred), Priority D (less prioritized), and Priority E (not prioritized). The result of evaluating the physical condition of all of the sea walls received fairly good results. The performance function of the coastal protection at Penimbangan Beach shows that segments 1-5 have good functional performance, requiring only monitoring of the sea wall. However, segments 6-16 have poor functional performance due to wave overtopping, necessitating a reassessment of the sea wall.
Assessment of the Pelangwot-Sedayu Lawas Floodway Capacity for Managing Floods in the Lower Bengawan Solo River Amalia, Dewi; Sumiadi, Sumiadi; Dermawan, Very; Ivan, Hans
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 15 No. 2 (2024)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2024.015.02.7

Abstract

The Pelangwot-Sedayu Lawas floodway is the main infrastructure for a flood control system in the Lower Bengawan Solo. However, frequent flooding still occurs in the Turi and Kali Tengah subdistricts of Lamongan Regency. Therefore, the number of emergency gates in the floodway has been increased. An important aspect of this flood control is ensuring that, despite the increase in capacity of the Pelangwot-Sedayu Lawas floodway gates, the water surface elevation at Pelangwot does not lead to overflow and that the floodway channel from Pelangwot to Sedayu Lawas effectively conveys the maximum discharge. This study aims to assess the capacity of the emergency gates to convey a flood discharge of 1000 m³/s and the capability of the floodway channel to accommodate flows from both the emergency gates and outlet of Jabung Retarding Basin, which amounts to 1140 m³/s. The analysis of floodway capacity involves calculating the discharge through five floodway gates and simulating the floodway channel to manage flood discharge using the HEC-RAS 5.0.7 software. Results indicate that with a gate opening of 5 m, the five gates can discharge 1000 m³/s at a water surface elevation of +7.03 masl, reducing floods by 32.09%. To improve capacity, the embankment must be elevated by 1.0 meters, with a crest width of 4.00 meters along the left bank for 4.4 km and the right bank for 4.35 km. These modifications are essential to enhance flood management and protect downstream areas.
Impact of Land Use Changes on Irrigation Systems and Water Balance in the Cimanuk River Basin Ariyani, Dwi; Trisno Lestari, Rini; Prautama Dewi, Atri; Yasmin Kanwar, Sonia; Putri Kirani, Fachriza
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 15 No. 2 (2024)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2024.015.02.9

Abstract

Water resources are crucial for life and the economy, especially in the Cimanuk River Basin, where irrigation supports agricultural productivity. Population and economic growth have led to significant changes in land use that impact irrigation systems. The shift from agricultural to non-agricultural land, along with factors such as urbanization, flooding, drought, and pests, has reduced the area of farmland and decreased rice productivity in West Java. This study aims to analyze changes in land use and their effects on the irrigation system in the Cimanuk River Basin. The research methods include analyzing combined data such as remote sensing, statistical tests, evapotranspiration calculations, and irrigation water needs to assess the water balance of irrigation based on water availability and demand. The findings reveal a significant decrease in agricultural land coverage, from 37.48% of the total area of the Cimanuk River Basin in 2000 to 22.79% in 2023. This change in land cover affects irrigation needs and impacts the water balance in the Cimanuk River Basin, resulting in a water deficit between availability and irrigation needs. The water deficit occurs during peak dry months, such as July, with a maximum deficit of 215.72 m³/second, indicating that the water requirements for irrigation are often not met optimally.
Hazards and Risk Assessment for Physical Hydraulic Structures of Dam Model in the Laboratory Wiyono Wit Saputra, Anggara; Rubiantoro, Prasetyo; Tri Juwono, Pitojo; Harisuseno, Donny; Sidqi Fidari, Jadfan
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 15 No. 2 (2024)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2024.015.02.10

Abstract

Some workers often neglected Occupational Health and Safety (OHS) regulations in the laboratory environment, resulting in potential hazards that ultimately led to workplace accidents. The physical hydraulic model of dam structures in this laboratory involved activities that posed potential risks. Hazard assessment and the risk of workplace accidents were identified through direct field observations to pinpoint potential risks associated with these activities. Questionnaires and interviews with personnel involved in laboratory activities, including workers and technicians, were conducted to gather relevant data concerning the research problem. This study aimed to identify potential risks and hazards using a Job Safety Analysis approach and to assess the risks associated with each activity stage. Risk levels at various stages of work were determined through job safety analysis within the OHS management system. Risk identification encompassed impacts on individuals, equipment, materials, and the environment. The highest high-risk and moderate-risk identified from the assessment are the demolition of the previous dam model in the site preparation step and the preparation of the electric water pump with a capacity of 100 l/second in the running stage. Generally, based on the identified risk categories, risk mitigation for dam model testing work in the laboratory included using Personal Protective Equipment (PPE) such as ear protection, masks, helmets, safety shoes, and gloves to prevent work-related accidents.
Residential Drainage System Planning X Sidoarjo District Maulana, Akmal Dzikri; Setyowati, Rr Diah Nugraheni; Utama, Teguh Taruna
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 16 No. 2 (2025)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2025.016.02.10

Abstract

An increase in the population growth rate leads to a rise in the need for housing. Housing development can reduce water catchment areas, potentially leading to increased flooding. This drainage system planning aims to determine the flood discharge and channel capacity. The hydrological analysis employs the Gumbel distribution method to determine rainfall with return periods of 5 and 2 years. Rainfall for the 2- and 5-year return periods is equal to 109.5 mm/hr and 136.8 mm/hr. Furthermore, the hydraulic analysis for channel drainage capacity uses the continuity equation and SWMM 5.2 modeling. The results of the hydraulic analysis showed that the channel capacity can accommodate the flood discharge. This is reinforced by the modeling results, which state that the whole conduit and junction can accommodate the flood discharge. This is based on the simulation results of channel conduits that are not red. The channel conduit is marked with green, blue, and yellow markings. This indicates that the planned channel has complied with planning rules. Based on the results of research and planning of the residential drainage system in X Sidoarjo Regency, it can be concluded that the drainage channel plan’s capacity is sufficient to accommodate flood discharge. This is based on mathematical calculation results and modeling simulation results from the SWMM (Storm Water Management Model).
Determination of Rainfall Thresholds as Flood Triggers in the Klopogowok Watershed, Jember Qatrinnada, Winona Fritzie Putri; Hidayah, Entin; Halik, Gusfan
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 16 No. 2 (2025)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2025.016.02.1

Abstract

The Klopogowok Watershed in Bangsalsari District, Jember Regency, often experiences flooding, which disrupts community activities and causes quite severe traffic congestion. This study aims to determine the rainfall threshold that triggers flooding using empirical methods to provide early warning and more effective mitigation measures. The data used in this study include rainfall data from the Global Precipitation Measurement (GPM) satellite and local observation data from 2014 to 2023. The approach used is consistency and correlation analysis between satellite and observation data. The analysis results show that flooding in the Klopogowok Watershed occurs with rainfall intensity ranging from 45 to 145 mm, lasting 6 to 19 hours. The empirical model obtained is I = 17.727D0.4858. This model has been proven to predict flood events, with the intensity-duration (I–D) equation able to identify the rainfall threshold that causes flooding quite well, with a coefficient of determination (R2) value of 0.732. Model validation using flood event data shows that this model can be used to provide early warning of potential flooding as a preventive measure. With integration into a real-time weather monitoring system, this model can be used as a basis for early warning of flooding in the Klopogowok Watershed. These findings will help policymakers in disaster mitigation, more effective water management planning, and improve community preparedness for flood disasters.
Review of Gelar Reservoir Operation Simulation in Jembrana Regency Nuraga, I Ketut; Putri , Putu Indah Dianti
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 16 No. 2 (2025)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2025.016.02.3

Abstract

As one of the most vital natural resources, water resources must be utilized and handled carefully and comprehensively. Water utilization for irrigation and drinking water is one of the various alternative uses of water in a river basin. In the East Tukad Daya river area, Jembrana Regency, a preliminary study has been carried out regarding plans to build a reservoir or dam to meet the irrigation water needs of 1,198 hectares and drinking water for the community in Melaya District and parts of Kota Negara. This research aims to simulate reservoir operations to ensure the reliability of storage operations in meeting existing water needs. The analytical method used is a simulation method based on the water balance formulation in the reservoir. The reservoir storage simulation results showed that the total storage capacity was 1,350.514 x 103 m3 at an overflow lighthouse height of + 180.0 m. The dead storage due to sedimentation is 12.817 x 103 m3, so the height of water withdrawal at the low water level (LWL) is set at an elevation of + 158.71 m. Based on the total area of storage and dead storage, the effective storage is 1,337.697 x 103 m3. This research provides an overview of the operating patterns that can be used as a reference for discharge release operations according to the service area’s needs.
Flood Identification Using Google Earth Engine and Correlation with Disaster Risk Level in Tanjungpinang City Dewi, Dian Kharisma; Zulfakar, Muhamad; Sukmawan, Muhammad Fatwa; Oktavia, Ferly
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 16 No. 2 (2025)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2025.016.02.4

Abstract

Tanjung Pinang, the capital city of Kepulauan Riau Province, experienced a significant flood in early January 2021. The rainfall intensity during this event reached approximately 282.6 mm/hour, the highest recorded since 2011. This flood caused extensive damage to several facilities and residential areas. The impact of such disasters can be mitigated through identification, evaluation, and preventive measures. One such preventive approach is flood identification, which involves mapping flood extent areas. This study utilized Google Earth Engine (GEE), a web-based application platform, to achieve this. The advanced capabilities of GEE enabled the identification of flood distribution in January 2021. The results revealed that the cumulative flood distribution area was 37.89 hectares on January 2 and 149.88 hectares on January 10, with the largest affected area in Tanjungpinang Timur, covering 89.858 hectares. Based on the disaster risk level guidelines outlined in Regulation Number 02/2012, issued by BNPB, the floods on January 2 and 10, 2021, were classified as ‘High-Level’ disasters.  
The Effect of Groundsills on the Degradation and Aggradation Processes of the Parit Raya Riverbed Andriantari, Nur Fadhlillah; Andawayanti, Ussy; Hendrawan, Andre Primantyo; Putra, Farhan Akbar Darma
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 16 No. 2 (2025)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2025.016.02.8

Abstract

Parit Raya is part of the drainage system of the Ngasinan River in Trenggalek and Tulungagung regencies. It is designed to reduce flooding and manage waterlogging caused by the construction. However, in the rainy season, the high flow velocity often causes damage to groundsills, triggering riverbed degradation or aggradation. This study aims to analyze the degradation and aggradation phenomena in Parit Raya River and the effect of two groundsill to reduce these actions using Hydrologic Engineering Center’s River Analysis System (HEC-RAS) simulations. The flow and sediment dynamics analysis uses Meyer Peter Müller (MPM), Engelund Hansen, and Laursen Copeland methods. The research locations focus on three river sections, consisting of 74 cross-sections, with two groundsills. By using the MPM, Englund-Hansen, and Laursen-Copeland methods modeled in HEC-RAS 6.0.0 software, this study can help in evaluating the effectiveness of groundsills in controlling sediment, preventing excessive erosion, and maintaining the stability of other hydraulic structures in rivers. The analysis reveals that conditions upstream of the groundsill tend to experience aggradation due to sediment deposition in STA 120, STA 103.60, and STA. 79.40, downstream conditions are characterized by degradation, indicated by riverbed erosion resulting from increased flow velocity between STA 120 and STA 47. Among the methods applied, the MPM and Engelund-Hansen methods provided results that closely align with field conditions compared to the Laursen-Copeland method.
Performance Evaluation of the GPM Satellite Rainfall in the Wampu Basin, North Sumatera, Indonesia Hakim, Anita Maulidiyah Rahma; Harisuseno, Donny; Sisinggih, Dian; Asmaranto, Runi
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 16 No. 2 (2025)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2025.016.02.7

Abstract

Rainfall data is crucial in water resources management, particularly associated with its quantity, quality, and spatial and temporal availability in a basin. This study aims to assess the feasibility of Global Precipitation Measurement (GPM) satellite rainfall data to represent rainfall in the Wampu basin. The observed and the GPM rainfall data were collected for 2001 – 2022. Rainfall data from observations and satellites are classified into seven rainfall depth classes with an interval of 10 mm for each class. The GPM was calibrated by determining each class’s correction factor (CF). Calibration is carried out by adjusting the CF value until the difference between the probability of occurrence of satellite and observation data for 2001 – 2017 shows a minimum value. The accuracy of the yielded CF was then validated by evaluating the estimated rainfall from the GPM with the observed rainfall for 2018 – 2022. The results show that the CF of GPM varies from 0.9 – 1.012 for rainfall intervals 0 – 10 mm, 10 – 20 mm, 20 – 40 mm, 40 – 50 mm, 50 – 100 mm, 100 – 110 mm, and >110 mm, respectively. Then, the validation results show an “Excellent” level of accuracy between the corrected GPM and the observed data.   

Page 37 of 38 | Total Record : 374

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