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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.
Arjuna Subject : -
Articles 364 Documents
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Analysis of Water Availability in Tilong Reservoir, East Nusa Tenggara Due to Climate Change Bees, Azarya; Mooy, Merzy
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 15 No. 1 (2024)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2024.015.01.8

Abstract

This study aims to determine the availability of Tilong Reservoir inflow related to climate change. Water availability can be seen from the high inflow into the reservoir, obtained using the Mock model to simulate the inflow. The modeling results using the Mock model in the historical period are then compared with the results of future projections using GCM CanESM2 data from SSP119 to SSP585 scenarios. The historical period is modeled using rainfall from 2000 to 2019, while the projection period is divided into two periods, namely the 2030s (2020-2039) and 2050s (2040-2059). The projection results show that the highest increase in rainfall will occur in the SSP245 scenario for the 2030s and 2050s. The highest increase in future rainfall occurs in June, while the highest decrease occurs in August. With the increase in rainfall, there will also be an increase in inflow into the Tilong Reservoir, especially in December, which is more than 100% for each SSP scenario. In addition, an increase in water availability can also be seen by an increase in the dependable discharge, especially at SPP245, where there was an increase in the highest dependable discharge of 64.23% in the 2030s and 76.80 in the 2050s. The increase in dependable discharge is seen to positively impact the water availability of the Tilong Reservoir. However, it is necessary to pay attention to the reservoir’s operational pattern so that the existing water can be used optimally.
Rationalization Rain Gauge Density using the Stepwise Method Wahyuni, Sri; Sisinggih, Dian; Kriswardhana, Willy; Widyaningrum, Aprilia; Atika , Yumna
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 15 No. 1 (2024)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2024.015.01.9

Abstract

Establishing and maintaining hydrometeorological networks in sub-watersheds is challenging. An analysis of an established network of Rain Gauge Station (RGS) is provided in this study in the form of a comprehensive statistical framework. Hydrometeorological observations are monitored by this network, which aims to gather the most pertinent information while minimizing expenditures. The study location is at Ngasinan Hulu watershed (East Java, Indonesia), with ten rain gauge stations and one automatic water level recorder (AWLR). Errors in reviewing hydrological data in a watershed can cause the resulting data to be inaccurate. Therefore, to solve the problem of incorrect data, it is necessary to rationalize rain gauge stations. The rationalization for this study uses the Stepwise method. The results of the Stepwise-Enter method produce a combination of six rain gauge stations with measured rainfall data and a combination of four rain gauge stations with CHIRPS satellite rainfall data. Therefore, this combination of rain gauge stations is rational because it meets the classical assumption test, and the area is evenly distributed according to WMO standards.
Improving Drinking Water Management Efficiency in Batu City Water Utility with System Dynamics Modelling Approach Arief, Amalia Mardhatillah; Siswoyo, Hari; Andawayanti, Ussy
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 15 No. 1 (2024)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2024.015.01.7

Abstract

The increasing demand for drinking water due to population growth presents significant challenges for the Among Tirto Water Utility (ATWU) in Batu City, East Java, Indonesia. In 2022, ATWU faced low service coverage (36%) and high water loss (38%), exceeding the 20% threshold. Some previous research discusses the System Dynamics (SD) used to overcome the water shortage problem. In this study, the SD is used to overcome excess water. Therefore, This study aims to enhance efficiency by adding piping networks and controlling water losses. This research uses an SD approach method that includes simulations from 2017 to 2042 or for 25 years using the Powersim application. Methodologies include analyzing drinking water availability, constructing causal loop diagrams (CLD) and stock and flow diagrams (SFD), verification, validation, and designing policy scenarios. The required data are the number of customers, service coverage, actual production capacity, water loss, total community water consumption, business revenue, business expenses, and other data related to water management in ATWU. The study identifies Scenario Two as the most effective in addressing location-specific issues. If water loss control is implemented to reduce loss rates to 20%, ATWU could expand service coverage by 58.44%, increasing water availability and a projected profit of 3.6 billion rupiahs by 2042. The results of this study can improve operational efficiency and facilitate better decision-making for the Water Utility of Batu City.
Spatial Incidence and Characteristics of Microplastics Around Industrial Zones (Case Study: Surabaya Industrial Estate Rungkut, Indonesia) Haribowo, Riyanto; Shiddik, Muchammad Ja'far; Wirawan Putra, Rizky Almarendra; Anggani, Tsabita Putri; Wahyuni, Sri; Prasetyorini, Linda; Fadhillah, Arriel
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol. 15 No. 1 (2024)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.pengairan.2024.015.01.6

Abstract

Microplastics found in drainage channels are a significant contributor to river pollution. Among the potential contributors to this issue are industrial activities. In this investigation, we focused on assessing the occurrence of microplastics within the Surabaya Industrial Estate Rungkut (SIER) industrial area, which discharges into the Tambakoso River in East Java, Indonesia. Surface water tests were obtained from 19 particular focuses. The extraction of microplastics included filtration, wet peroxide oxidation, and density separation techniques. Recognizable proof of polymers was accomplished utilizing Fourier change infrared (FTIR) spectroscopy. Statistical analysis was conducted employing the Ward cluster test method within the IBM SPSS Statistics software. The findings revealed a gradual increase in the abundance of MPs from upstream to downstream locations, with the highest concentration observed at point 19 (548.33 particles/L). The majority of microplastics were characterized by their small size (<1 mm), fragment shape (45.93%), and black color (56.18%). The types of polymers are mostly polypropylene (PP) and polyethylene (PE). Findings derived from the cluster analysis highlight the substantial involvement of the food and beverage, pharmaceutical, and plastics sectors in microplastic pollution within the drainage channels of the SIER industrial zones.
Stability Analysis of Bagong Maindam using Geostudio Fakhruddin, Daffa Budi; Marsudi, Suwanto; Cahya, Evi Nur; Nurjati Hidayat, Muhammad
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.2024.015.02.1

Abstract

This research investigates the stability and seepage analysis of Bagong Dam, which is an important factor in dam planning. The planned dam must withstand various loads and forces acting on it. Seepage analysis was conducted using the Seep/W program in Geostudio software. For dam stability analysis, the Bishop Method was utilized with the assistance of the Slope/W program in Geostudio software. The safety factor (SF) in seepage analysis and dam stability must meet the required threshold to confirm the dam's safety. The results of the seepage analysis for Bagong Dam indicate safety, as the seepage discharge (QNWL = 0.005018039 m3/s; QFWL = 0.005412454 m3/s; and QMWL = 0.002444141 m3/s) is less than 1% of the Bagong River inflow discharge (0.06791 m3/s). In the stability analysis, the safety factor (SF) results for the dam under conditions without earthquakes and 100 and 200-year Operational Based Earthquakes (OBE) indicate that the dam is safe. However, the dam is considered unstable under an earthquake load with a return period of 10,000 years (Maximum Design Earthquake, MDE). Deformation analysis using the Makdisi and Seed Method was performed to ensure its safety. The results indicated that the maximum displacement was less than permissible, indicating that the dam is safe.
Analysis of Flood Risk Areas by Weighting the Analytic Network Process (ANP) Method Suciana, Ajeng Titin; Suhartanto, Ery; Wahyuni, Sri
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.2024.015.02.2

Abstract

Flooding is one of the disasters that often occurs in the Karangmumus Sub Watershed, causing more than 400 housing units to be flooded in 2021. In this study using the Weighted Scoring method, the parameters are soil type, slope, land cover, rainfall, and land use. They determine the weight of each flood parameter using the Analytic Network Process (ANP) method. ANP is a decision-making method that takes into account the relationships and dependencies. This research study aims to identify flood-risk areas that produce flood-risk maps. The ANP analysis results show that the land use parameter weighs 50% of the total weight. The risk class is divided into four parts: not risk, somewhat risk, risk, and very risk. The largest flood-risk area is the “very riskous” class, with an area of 29,288 km2. The suitability of the analysis results with BNPB data is 80%, thus indicating that the suitability is very high. The map of the analysis results with the map from BNPB shows an NSE value of 0.764 and an R-value of 0.956, identifying the plot and the relationship between the two data as very strong. The research results are expected to be a parameter for effective and efficient policy-making in flood disaster management. Map-making uses a Geographic Information System (GIS) with an intersect tool.
Development of Clean Water Network in Ngasinan Village Bojonegoro Regency Rozi, Maksum; Sugiarto Waluyo, Budi; Rizal Sutikno, Fauzul
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.2024.015.02.6

Abstract

Ngasinan Village is one of the areas where clean water distribution is managed by Ngasinan Village Regional Drinking Water Company (PAMDes). There are still several problems, especially regarding the provision of clean water. Currently, the managed clean water network has not reached the entire Ngasinan Village area, with 30.18% still using wells and rain-fed wells. This has an impact when the dry season occurs, which decreases water discharge and causes water scarcity. Therefore, to improve the provision of clean water, Ngasinan village needs to build a comprehensive clean water network for the community. The method was used quantitatively with water demand forecasting analysis techniques and in planning a water network with Epanet 2.0. Based on the forecasting results for 2033, the need for water is 1.92 liters/second, with a standard water requirement of 60 l/day/capita. The average water requirement in 2033 is 2.77 liters/second, including domestic and non-domestic needs. The development plan of Ngasinan Village is to add one water source, namely the Temulus source, with an installed capacity of 7 l/s, which will serve 112 customers. The planned length of the water distribution pipe is 3123.60 meters with a 2-3 inch PVC pipe type, pipe speed in the range of 0.26-0.88 m/s, and pressure in the range of 51.13 - 58.92 m. This study contributes to the clean fulfillment efforts, especially in supporting the 100-0-100 program. Recommendations are given to village policymakers to optimize the existing clean water potential for better clean water services.
The Role Of Social Capital In Community Based Drinking Water Programs in Sranak Village, Bojonegoro Kukuh Nur Cahyo, Moh.; Rizal Sutikno, Fauzul; Rini Dwi Ari, Ismu
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.2024.015.02.8

Abstract

The ability of a community to manage water supply networks is significantly influenced by the type and extent of social capital, which helps to elucidate interaction patterns within water supply community groups. In 2018, Sranak Village in the Trucuk District became the first to implement the PAMSIMAS 7 Sumber program. This initiative involved community groups responsible for managing the program, with water network installations being independently distributed and maintained by the private sector. This research aims to assess the distribution of social capital and the level of community participation to enhance community-based water and sanitation management in Sranak Village. Utilizing Social Network Analysis (SNA), this study maps and examines the connections, networks, and information flows within the community. Data collection includes primary sources through direct observation and secondary sources from community water management groups. The findings reveal that Sranak Village possesses a robust social network and high levels of trust, which contribute to the effective management of water supply infrastructure. Moreover, social capital plays a crucial role in bridging gaps between community groups, thereby fostering development and sustainability. The study underscores the importance of social capital in community-based initiatives and suggests that enhancing these networks can lead to improved management and sustainability of water and sanitation systems.
Analysis of Land Cover Change Trends at Rejoso Watershed, Pasuruan Regency, East Java Province Nurrohma Amalia, Nadhea; Suhartanto , Ery; Andawayanti, Ussy
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.2024.015.02.3

Abstract

Human activities such as urbanization, population growth, agricultural expansion, deforestation, and industrialization significantly influence changes in land cover and the environment. The United Nations World Urbanization Prospects reports that by 2030, around 60% of the world’s population will live in cities, increasing from 54% in 2014 to 66% in 2050. This change in land cover can cause environmental disasters such as erosion and flooding, resulting in biodiversity loss, land degradation, and pollution. Therefore, monitoring land cover changes is a priority for researchers and policymakers. This research analyses land cover changes from 2012, 2017, and 2022, predicting 2027 and 2032. Landsat satellite image processing to create land cover maps for 2012, 2017, and 2022 uses a supervised classification method in GIS software and predicts land cover for 2027 and 2032. It was carried out with the help of TerrSet software with a CA-Markov model using spatial data on land cover maps for 2012, 2017, and 2022. The results of this process show that land cover of lakes, forests, plantations, and rice fields decreased in each period, while land cover of dry land, residential areas, bushes, and ponds experienced an increase. The result validation value in 2012 was 81.98%, in 2017, 76.83%, and in 2022, 79.57%, and validation in 2022 on Terrset of 0.7190.
Musle Model Development in Laboratory Studies Using a Rainfall Simulator Aulia Zahira, Nabila; Andawayanti, Ussy; Suhartanto, Ery; Ramadhani, Rizki
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.2024.015.02.5

Abstract

Various methods are available for sediment calculation, including the USLE and MUSLE methods, developed based on field observations. For the MUSLE method, it is important to determine the peak flow rate and surface runoff volume. This data is crucial for identifying areas vulnerable to erosion and implementing erosion prevention measures. However, in practice, calculations are often adjusted based on the available data and parameters. This research compares the calculated results of peak flow discharge and surface runoff volume between the Rational Method and the SCS Method with laboratory observations and the applicability of the USLE and MUSLE methods to laboratory sediment observations. Laboratory experiments use a rainfall simulator with intensities of 1 liter/minute, 1.5 liters/minute, and 2 liters/minute, and a maximum land slope of 5%. The research results show that calculating peak flow discharge and surface runoff volume using the Rational Method aligns more closely with laboratory conditions than the SCS Method. However, both methods are considered unsuitable for laboratory observations, as validation calculations and relative error results indicate a mismatch with model performance. Meanwhile, the USLE method is considered more suitable for sediment calculations than the MUSLE method, as the MUSLE method requires adjustment analysis to fit laboratory observations better.

Page 33 of 37 | Total Record : 364

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