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All Journal JeLAST : Jurnal Teknik Kelautan , PWK , Sipil, dan Tambang Jurnal Teknik Sipil Journal of Engineering and Technological Sciences JURNAL SAINTIS Jurnal Rekayasa Teknik Sipil dan Lingkungan Jurnal Teknologi Lingkungan Lahan Basah
Stefanus Barlian Soeryamassoeka
Universitas Tanjungpura
Civil Engineering, Building, Construction & Architecture Computer Science & IT Energy Engineering Environmental Science Immunology & microbiology Materials Science & Nanotechnology Public Health Transportation

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THE USE OF TROPICAL RAINFALL MEASURING MISSION RAINFALL DATA AS INPUT DATA FOR WATER AVAILABILITY ANALYSIS WITH RAINFALL-RUNOFF MODELS IN THE MELAWI SUB-BASIN Gampo, Edi; Soeryamassoeka, SB; Kartini, Kartini
Jurnal Teknik Sipil Vol 23, No 2 (2023): JURNAL TEKNIK SIPIL EDISI MEI 2023
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jtst.v23i2.64404

Abstract

Many rain-to-discharge transformation models have been made, such as the Mock Model and the NRECA Model, which are used to make monthly synthetic discharge data when there is not enough discharge data to analyze water availability in a Sub-Basin or Sub-Basin. Tropical Rainfall Measuring Mission (TRMM) data, created by NASA and JAXA, is one type of satellite-based rainfall data that can help overcome the lack of rainfall data. However, not all areas have rainfall recording stations, and if there are, not all existing rainfall recording stations operate correctly. Such conditions also occur in the Melawi Sub-Basin in West Kalimantan. This research aims to determine how much water is available in the Melawi Sub-Basin by putting satellite-based rainfall data into the NRECA model and the Mock model, which converts rainfall to discharge.This study was done to determine how reliable TRMM satellite rainfall data are as input data for the rainfall-to-discharge transformation model used to determine how much water is available in the Melawi Sub-Basin. The goal of this study is to assess the suitability of TRMM data with observation station rainfall data in the Melawi Sub-Basin by validating TRMM satellite rainfall data with BMKG Susilo and BMKG Nanga Pinoh observation station rainfall data and to choose the appropriate rain-to-flow diversion model used in the Melawi Sub-Basin based on the results of model parameter calibration, with the models whose parameters are calibrated being the Mock Model and the NRECA.The study results show that TRMM rainfall data in the Melawi Sub-Basin that has been validated and corrected with the equation Y = 0.748089283 X + 62.19135368 can be used as input data in the analysis of water availability, and the transformation model of rainfall into discharge that is more suitable is the Mock Model. In general, both the observation station rainfall pattern and the TRMM rainfall pattern tend to have the same pattern as the discharge pattern in the Melawi Sub-Basin. The fact that August has the lowest peak is clear evidence of this. Even though the highest point doesn't happen in the same month, the trend is the same, so TRMM rainfall data can be considered valid and used to replace observational rainfall data in the Melawi Sub-Basin. Similar research can be done on other Sub-Basins in Kalimantan Barat Province to help develop and manage water resources since many observation stations in Kalimantan Barat Province no longer work, and there are many large Sub-Basins in that province.
TYPOLOGY OF CAR GLASS FILM TOWARDS CLIMATE IN ANTICIPATION TO GLOBAL WARMING Irsan, Robby; Fitrianingsih, Yulisa; Soeryamassoeka, SB.
Jurnal Teknik Sipil Vol 22, No 2 (2022): JURNAL TEKNIK SIPIL EDISI DESEMBER 2022
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jtst.v22i2.59035

Abstract

Climate change has a significant impact on the socio-economic and development of Indonesia. Transportation in this study is related to cars where cars require a lot of fuel consumption. Window Film is able to reject Infrared from sunlight which ensures that the car cabin will feel cooler can help overcome climate change. This study explains how the right type and and the percentage of window are used in the tropics to deal with global climate change. The purpose of this study was to analyze the parameters of temperature, wind speed, lighting, and noise originating from the outside of the car on the ability of each type of car window film to reduce heat. The research method used is the method of collecting data by taking data on the characteristics of temperature, lighting, wind speed and noise inside the car and outside the car which affect the window film. The results of scoring the noise quality standard using the application from SPSS using Crosstab, the quality standard is at a Moderate level between 56-65 db(A), the quality standard lighting level is at a Moderate level between 500-999 Lux, the wind speed to humans is at a very high level. The average score between Effective Temperature and Minimum Humidityis 24.46 °C with 63% Humidity. Typology of 40% window film with a combination of glasswall dampers is able to reduce the value of climate parameters from outside the car.
Flood Hazard Level Analysis of Kapuas Hulu Sub-watershed Using Geographic Information System Simanjuntak, Nunut Rialdi; Umar, Umar; Gunarto, Danang; Soeryamassoeka, S. B.
Jurnal Teknik Sipil Vol 24, No 4 (2024): Vol 24, No 4 (2024): JURNAL TEKNIK SIPIL EDISI NOVEMBER 2024
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v24i4.86222

Abstract

This article analyzes the flood hazard level in the Kapuas Hulu Sub-watershed using a Geographic Information System (GIS). The flood risk in this region is influenced by various factors such as soil types, land cover, elevation, slope, rainfall, and human activities. Ultisol (64.44%) significantly contributes to flood risk due to its low water permeability, leading to surface runoff during heavy rain. Inceptisol (31.73%) also plays a role in flood dynamics, with its water retention capacity dependent on vegetation. Smaller areas of Histosol (0.50%) and Spodosol (0.07%) pose localized flooding risks in lowland regions. The dominant land cover, primarily dryland forest, helps mitigate flooding, while settlements and agricultural zones increase vulnerability by reducing water absorption. Low-lying areas (50-100 meters) and steep slopes (25-45%) further exacerbate flood potential"”areas receiving moderate to high rainfall increase surface runoff and flood risk. GIS-based analysis categorizes flood vulnerability into low, medium, and high levels, with 57.71% of the area classified as low vulnerability. Recommendations for flood risk mitigation include soil conservation, reforestation, sustainable land management, and drainage system improvements in vulnerable areas.
ANALYSIS OF BASE SUBSECTORS AND LEADING AGRICULTURAL COMMODITIES IN SEKADAU REGENCY, WEST KALIMANTAN PROVINCE R, Hernovianty F; B, Soeryamassoeka S; Komala, Erwan; Elsa, Mukti Tri; Erni, Yuniarti
Jurnal Teknik Sipil Vol 22, No 1 (2022): JURNAL TEKNIK SIPIL EDISI JUNI 2022
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jtst.v22i1.54350

Abstract

The contribution of agriculture which has increased each year has been encouraged to be a strategic area for the economic development of Sekadau Regency. However, weakness of planning policy, insufficient quantity, and quality of infrastructure are obstacles to developing strategic areas. This study aims to analyze the basis of sub-sectors and leading commodities of agriculture in Sekadau Regency. The research approach used an exploratory qualitative with descriptive analysis methods to get an overview of agricultural productivity and Location Quotient Analysis, Shift-Share Analysis, and Klassen Typology to get the leading commodities of agriculture. The results of the study show that the productivity level of the agricultural sub-sector in Sekadau Regency is quite diverse. The agricultural and progressive sub-sector in Sekadau Regency is owned by food crops and plantations. Furthermore, the leading commodities of the food crop sub-sector in Sekadau Regency are corn, rice, and sweet potatoes. The main commodities of plantation sub-sectors in Sekadau Regency are pepper, rubber, and oil palm.
DETERMINATION OF DISCHARGE COEFFICIENT THROUGH LABORATORY TESTING USING BROAD-CRESTED WEIR Baihaqi, Reza; Herawati, Henny; Soeryamassoeka, S. B.
Jurnal Teknik Sipil Vol 24, No 2 (2024): Vol 24, No 2 (2024): JURNAL TEKNIK SIPIL EDISI MEI 2024
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v24i2.68560

Abstract

This study examined the impact of different threshold widths and channel narrowing configurations on water flow characteristics. The research involved testing three threshold widths (AL1, AL2, AL3) and six narrowing models (PM10, PM15, PM20, PT10, PT15, PT20) with varying water heights (1.0 cm, 1.5 cm, and 2.0 cm) above the threshold. Results indicated that narrowing at the upstream end increased water levels upstream and downstream, with a corresponding rise in flow velocity at the downstream end. Discharge values and coefficients varied significantly across different configurations, with non-linear increases observed in discharge coefficients due to changes in water levels and velocities. Scaling calculations provided prototype channel dimensions and flow characteristics, highlighting the study's strengths in using a fiberglass open channel and diverse testing configurations. However, limitations include the laboratory scale and exclusion of channel roughness effects.
PERFORMANCE ANALYSIS OF THE PUBLIC COMPANY REGIONAL DRINKING WATER TIRTA KHATULISTIWA IN PONTIANAK CITY Alfira, Dhea; Soeryamassoeka, SB; Yulianto, Eko
Jurnal Teknik Sipil Vol 23, No 3 (2023): JURNAL TEKNIK SIPIL EDISI AGUSTUS 2023
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v23i3.68169

Abstract

Pontianak City's only regional public water corporation is PERUMDAM Tirta Khatulistiwa. PERUMDAM must measure its SPAM management's success as the Drinking Water Supply System (SPAM) organizer. More is needed if solely financial metrics are used to quantify PERUMDAM's SPAM management success. The BPPSPAM team, BPKP, Perpamsi, and numerous PERUMDAMs developed this performance assessment based on four performance factors: financial, service, operational, and human resources. Each part has various assessment indications to improve assessment accuracy. The performance assessment results are Healthy, Less Healthy, and Sick. PERUMDAM must be healthy to operate SPAM effectively and efficiently through internal solid management to promote drinking water coverage and quality (BPPSPAM, 2014). The company's performance was assessed by PERUMDAM Tirta Khatulistiwa utilizing KEMENDAGRI Number 47 of 1999 metrics. This examination shows that low-value firm indicators still hinder performance.This article presents research on measuring the performance of PERUMDAM Tirta Khatulistiwa Kota Pontianak for the 2021 period through an assessment of the financial aspects, service aspects, operational aspects, and human resource aspects based on the Decree of the Head of the Supporting Agency for the Development of Drinking Water Supply Systems Number 002/KPTS/K-6/IV/2010 concerning Performance Assessment of Services for the Implementation of the Development of Drinking Water Supply Systems in Drinking Water Regional Companies using the Balance Scorecard approach and making the most suitable strategy for the lowest valued assessment indicator based on performance assessment in optimizing PERUMDAM Tirta Khatulistiwa's performance using SWOT analysis.Based on the study, PERUMDAM Tirta Khatulistiwa has a total score of 3.72 for all factors; this means it is a "healthy" PERUMDAM. After studying the best way to improve PERUMDAM Tirta Khatulistiwa, we found that its weaknesses should be fixed so that existing opportunities are used to their fullest. Another way to boost PERUMDAM's performance is to increase technological innovation by using more reliable technology and making apps that fit the needs of every part of PERUMDAM Tirta Khatulistiwa and improve customer service.
FLOOD MANAGEMENT STRATEGY IN THE SINGKAWANG CITY USING SWOT ANALYSIS Nathaniel, Yose Gerard; Soeryamassoeka, SB.; Yulianto, Eko
Jurnal Teknik Sipil Vol 23, No 4 (2023): JURNAL TEKNIK SIPIL EDISI NOVEMBER 2023
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v23i4.68830

Abstract

Singkawang City is a coastal city surrounded by mountains with an area of 504 km2. The Singkawang City area often experiences flooding, which gets worse every year. A deeper analysis is needed to determine strategic issues and flood management strategies in Singkawang City. This study analyzes flood control strategies and what mitigation is proper for Singkawang City. The results of this analysis are then used as a guide for stakeholders in making the best decisions to deal with floods in Singkawang City.To identify strategic issues regarding flooding, a Focus Group Discussion (FGD) on flood issues in Singkawang City was held on 21 June 2023, which credible stakeholders attended. The results of the FGD mapped out which factors are Strengths, Weaknesses, Opportunities, and Threats. Then, an IFAS and EFAS analysis is carried out to determine the most influential flood control strategy, which will be carried out by AHP analysis to determine the most priority strategy to implement. After that, the strategy timeframe was obtained using SFAS analysis for the short-term, medium-term, and long-term. This strategy is then complemented by disaster mitigation before, during, and after the flood.The analysis results show that the right strategy for flood management in Singkawang City in an integrated manner is the W-O Strategy, namely, improving the weaknesses in Singkawang City so that the existing opportunities can be maximized. The strategy with the highest priority from the AHP analysis is that the government can formulate a strategy for structuring the Singkawang River corridor with a weight of 0.247 and a score of 2.23. As well as getting flood mitigation for before, during, and after the flood.
Evaluation of the Drainage Channel Capacity of Air Ukah in Ngabang Barage, Lourdes Meirista; Gunarto, Danang; Soeryamassoeka, S. B.
Jurnal Teknik Sipil Vol 24, No 3 (2024): Vol 24, No 3 (2024): JURNAL TEKNIK SIPIL EDISI AGUSTUS 2024
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v24i3.82324

Abstract

Flooding in Ngabang, Landak Regency, Kalimantan Barat often results from high rainfall, urban expansion, and limited drainage. This study analyzes the Air Ukah drainage system, including primary, secondary, and tertiary channels, to assess current capacities against projected rainfall intensities. Hydraulic and hydrological analyses were performed using primary field data and validated rainfall records from 1999-2020. Findings reveal that the existing drainage, with the primary channel"™s 5.20 m ³/s capacity, the secondary channel at 0.36 m ³/s, and tertiary channels at 0.82 m ³/s, cannot accommodate maximum discharge, particularly for a 100-year return period rainfall of 114.27 mm/hour. To address this, channels were expanded: the primary channel was widened to 6.5 m and deepened to 3.5 m, increasing its capacity to 11.83 m ³/s. The secondary and tertiary channels were similarly upgraded, now accommodating 2.40 m ³/s and a cumulative 34.07 m ³/s. These modifications significantly enhance drainage capacity, preparing Ngabang to handle intense rain events and mitigating flood risks, particularly in urban areas. This upgraded system now meets the need for resilience against extreme rainfall, ensuring improved water management and community safety.  
BRACKISH WATER DESALINATION IN SUNGAI ITIK AREA USING REVERSE OSMOSIS (RO) METHOD Setiawan, Eric; Danial, Mochammad Meddy; Purnaini, Rizki; Soeryamassoeka, S. B.
Jurnal Teknik Sipil Vol 24, No 2 (2024): Vol 24, No 2 (2024): JURNAL TEKNIK SIPIL EDISI MEI 2024
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v24i2.61931

Abstract

This research addresses the complexities of treating brackish and seawater from Sungai Itik using Reverse Osmosis (RO), emphasizing advanced pre-treatment methods, hybrid RO systems, and fouling control. Pilot-scale tests confirmed the feasibility of these approaches in meeting clean water standards and balancing economic and environmental sustainability.Using a single ultra-low pressure (ULP) RO membrane, salinity decreased by 57.36%, Total Dissolved Solids (TDS) by 25.76%, and watercolor by 63.25%, achieving improved water quality. Expanding to a ULP and Brackish Water (BW) membrane combination further reduced salinity by 40.63%, TDS by 35.76%, and watercolor by 92.13%, highlighting the benefits of hybrid systems for varied water conditions. In seawater treatment, a ULP membrane reduced salinity by 69.48%, TDS by 93.49%, and watercolor by 97.74%, proving effective for converting seawater to potable or industrial-grade water. Combining ULP and BW membranes achieved salinity reductions of 94.67%, TDS by 94.02%, and watercolor by 34.94%, which is crucial for applications needing ultra-clean water. These findings underscore RO's potential to mitigate water quality challenges and support sustainable water management in diverse environments.
Analisis Tingkat Bahaya Erosi di Sub DAS Manday Fung, Nyit; Soeryamassoeka, Stefanus Barlian; Gunarto, Danang
Jurnal Teknologi Lingkungan Lahan Basah Vol 14, No 1 (2026): January 2026
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jtllb.v14i1.95805

Abstract

Erosion is the process by which soil particles are detached and transported from their original location to other areas, primarily driven by water and wind, through the breakdown of soil aggregates (dispersion) and surface runoff. Continuous erosion can lead to sedimentation in rivers, reducing their capacity to carry water and increasing the risk of flooding during periods of high rainfall. However, scientific studies on erosion in the Manday sub-watershed remain limited. This study aims to analyze the extent of erosion occurring in the Manday Sub-Watershed using the Universal Soil Loss Equation (USLE) method combined with Geographic Information Systems (GIS), classify the erosion hazard level (EHL) in the Manday Sub-Watershed, and produce a map of the distribution of erosion hazard levels (EHL) in the Manday Sub-Watershed. The parameters used include the erosivity factor (R), soil erodibility (K), slope length and gradient (LS), land cover (C), and land conservation measures (P). The results of the study show that erosion in the Manday Sub-Watershed amounts to 101,491.44 tons/ha/year, with five erosion hazard levels (EHL) classified: very low, low, moderate, high, and very high, with the very low category covering 176,966.41 ha (56.95%) and the low category covering 92. 773.49 ha (29.86%), while the moderate category accounted for 5.67% (17,618.21 ha), severe for 3.35% (10,397.92 ha), and very severe for 4.17% (12,971.30 ha). Mapping the distribution of erosion hazard levels (TBE) shows that areas with higher TBE are generally on steep slopes with minimal vegetation cover. This mapping underscores the need for targeted land management in high-risk areas to mitigate erosion impacts.
Co-Authors AA Sudharmawan, AA Abang Alvin Septiady Pratama Akafi, M. Ma'ruf Alfaro, Aldi Alfira, Dhea Apri Ananda Putra Azwa Nirmala Azwa, Nirmala Baihaqi, Reza Barage, Lourdes Meirista Buan, Berloskoni Candra, Diki Danial, Mochammmad Meddy Edwardo Dommy, Bung Nemesio Eko Yulianto EKO YULIANTO Ella Prastika Erlanda Elsa, Mukti Tri Elsy Ivana Clara Ivana Erni Yuniarti Erni Yuniarti Erni, Yuniarti Erwin Sutandar Fahrul Razi Fattah, Fathan Abdul Ferdyansyah, Syarif Muhammad Fikriansyah, Irfan Fikry Putra Ramadhani Fiqih Rahmanto Firjatullah, Muhammad Fitriana Meilasari Fitrianingsih, Yulisa Fung, Nyit Gampo, Edi Goewin, Felix Wesley Gunarto, Danang Haryanda, Andi Fikri Hendri Sutrisno Henny Herawati Herawati, Henny Hui, Sin Iman, Sumantri Indah, Fitriani Meta Irfansyah, Muhammad Irmansyah, Fitri Iwansyah, Iwansyah Julianto, Fidelis Kartini Kartini Kartini Kartini Kembara, Riko Komala, Erwan Kurniadi, Tedi Kurniawan, Muhammad Hafiz Liehan, James Mahendra, Dandy Roffi Manurung, Amos Parulian Meilasari, Fitriana Meirany, J. Meiteza, Shella Mesio, Marsianus Miranda, Juwita Mochammad Meddy Danial Muhammad Azhar Irwansyah Muhammad Sidik Muslim, Alfin Islami Ibnu Nathaniel, Yose Gerard Nauli, Sachika Aurelia Nurhayati Nurhayati Nurhayati Nurhayati Nurul Hidayati Paraya, Mario Igor Pradanapa, Permada Garah Pratama, Andikha Pratama, Ya'Muhammad Erdi Putra, Enggar Jaya R, Hernovianty F Ranate, Chelsea Riandini, Alfi Rifani, Hastami Riyanda Nurcahyo Rizki Purnaini Rizky, Firgenius Robby Irsan Safaruddin, Nuh M. Senoaji, Arif Setiawan, Eric Silalahi, Kevin Aglesio Simanjuntak, Nunut Rialdi Simbolon, Roy Binsar Sahat Maruli Tua Siti Aprilianti Suci Suci, Suci Susanto, Nugroho Adji Sutera, Mahardika Wira Aji Bayu Sutrisno, Hendri Syahrudin Syahrudin, Syahrudin Tangkadas, Charles Gonzaga Teguh, Rahmat Teofano, Enrico Umar Umar Umar Umar Wandi, Thomas yance yance Yuanita, Ezzy Zulfian Zulfian