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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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Analysis of Water Availability of Madi Irrigation Network Pradanapa, Permada Garah; Soeryamassoeka, S. B.; Yulianto, Eko
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.v24i3.80389

Abstract

This research analyzes the water availability of the Madi Irrigation Network through detailed assessments of evapotranspiration and discharge data from 2008 to 2019. The study reveals significant seasonal and inter-annual variations in evapotranspiration rates, which typically increase during warmer months and decrease in cooler periods. This fluctuation is closely linked to climatic conditions, influencing agricultural water demand. Monthly discharge data further illustrates these variations, showing high discharge rates in the rainy season (e.g., January and December) and lower rates during drier periods (e.g., August and September). The 80% dependable discharge rates reflect similar seasonal trends, with notable peaks and troughs correlating with rainfall patterns. These insights underscore the importance of adaptive water management strategies to optimize irrigation practices, manage water resources effectively, and address the impacts of climate variability. By understanding these patterns, water managers can better plan for periods of surplus and scarcity, enhancing agricultural productivity and sustainability.Keywords: Water Availability, Irrigation Madi, Irrigation Management, Water Management, Agricultural Water Demand.
SUPPLY AND DEMAND ANALYSIS OF BURUNG BATU BEACH TOURISM OBJECT IN SINGKAWANG, WEST KALIMANTAN Erni, Yuniarti; Indah, Fitriani Meta; Iman, Sumantri; B, Soeryamassoeka S; R, Hernovianty F
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.v22i1.54349

Abstract

Singkawang City West Kalimantan Province has one of the natural attractions of the beach is Batu Burung Beach. The attraction of this object is the panorama of the beach with granite stones which is based on the history as the gathering place of birds. The attraction of Batu Burung Beach has not been the main destination for tourists, because it has not been developed properly and realized optimally. The factor that hinders the development of tourist attractions is marketing so that not many tourists know about the existence of this attraction. This research purposed to analyse the potential of supply and demand tourist attractions Batu Burung Beach. The research method used is quantitative method and supported by qualitative method. The analysis method that used to analyse potential supplies is ODTWA analysis, while to analyse potential demands is using descriptive analysis. The results of research on Batu Burung Beach attractions show that it is worth developing as a beach tourist destination. Based on the recapitulation of the value of potential objects and tourist attractions, the beach got a potential value index of 77.33% which falls into the category worth to be developed. The criteria that requires follow-up actions so that this object can be in priority scale and developed into a beach tourist attraction is marketing. While the potential demand criteria that require follow-up actions is the need for the expansion of tourist attraction areas, widening of the entrance, procurement of sign boards, the addition of shelters, the expansion of toilets and prayer rooms, the addition of food stalls, and the procurement of social media and information brochures. Batu Burung Beach tourism object with this handling is expected to be developed into an alternative beach tourist destination in Singkawang City.
DETERMINATION OF REPRESENTATIVE MOCK MODEL PARAMETERS FOR MONTHLY DISCHARGE CURVE DEVELOPMENT IN THE UPPER KAPUAS RIVER BASIN Sutera, Mahardika Wira Aji Bayu; Soeryamassoeka, S. B.; Yulianto, Eko
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.v24i2.69008

Abstract

Representative Mock Model Parameters for Generating Monthly Discharge Curves in the Upper Kapuas River Basin provide valuable insights into hydrological processes influenced by climatic factors. Potential evapotranspiration peaks in August due to elevated temperatures and intensified sunshine during the 2005 dry season, leading to increased water demand from soil and vegetation. This results in heightened water loss to the atmosphere, reducing available water for river flow and decreasing monthly discharge, which is crucial during dry periods. Effective water resource management strategies are essential to mitigate potential water scarcity. High rainfall in the upstream Kapuas watershed significantly impacts monthly discharge, with increased surface flow directly boosting river discharge. The monthly discharge varies widely between rainy and dry seasons, notably rising during heavy rainfall, potentially causing flooding. Effective watershed management, including runoff management, reforestation, and infrastructure development, is critical to mitigate these impacts and optimize water resources for irrigation and supply, ensuring efficient utilization of increased rainfall. Correlation and RSR test results underscore the model's ability to capture variable relationships and predict outcomes accurately. Strong correlations between 0.8 to 1 and RSR values ranging from 0.5 to 0.7 demonstrate the model's reliability in various scenarios. Models with lower RSR values below 0.5 exhibit exceptional prediction accuracy, emphasizing their utility in diverse applications. These findings highlight the importance of refining models to enhance accuracy and reliability in predictive hydrological applications within the Upper Kapuas River Basin, ensuring adequate water resource management and flood risk mitigation.
EROSION HAZARD LEVEL PREDICTION IN LAKE OF SENTARUM AREA Rizky, Firgenius; Soeryamassoeka, SB.; Kartini, Kartini
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.v24i2.78718

Abstract

The Sentarum Lake region, a conservation area in Kalimantan, is integral to the Kapuas River Basin, which is recognized nationally. Ensuring its sustainability demands diverse studies, including erosion risk assessment. Accurate predictions are vital due to the region's ecosystem role in West Kalimantan. Estimating erosion magnitude provides crucial data on sedimentation, which impacts the sustainability of endemic flora and fauna. This study aims to (a) pinpoint erosion factors in Lake of Sentarum, (b) assess erosion hazard levels, (c) create an erosion hazard map with ArcGIS, and (d) prescribe soil conservation measures. Methods encompassed (a) field and institutional surveys for data gathering and (b) the USLE method for erosion hazard analysis. Identifying erosion factors in the Sentarum Lake area reveals rainfall, soil type, slope, and land cover as significant influencers. Analysis indicates heavy erosion hazards for Inceptisol and Utilosol soils, except in areas with primary dryland forest or flat-sloped dryland agriculture where hazards are heavy. Peat-containing soils are especially prone to erosion. Oxisol soils on flat slopes with agricultural land cover face heavy hazards, while moderate hazards occur in dryland agriculture on steeper slopes. The region faces considerable erosion risk, particularly in specific soil and land cover conditions, emphasizing the need for targeted soil conservation measures. Thus, the Sentarum Lake area is highly susceptible to erosion, necessitating specific soil conservation measures. Structural methods like constructing bench terraces prove more effective than non-structural ones, such as tillage and contour line planting, reducing erosion hazard by approximately 96%.
Analysis of Flood Prone Areas in Melawi Sub Watershed Using Geographic Information System Candra, Diki; Soeryamassoeka, Stefanus Barlian; Gunarto, Danang
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.v24i4.83107

Abstract

Floods are a common natural disaster in West Kalimantan, including in the Melawi Sub-Watershed, causing infrastructure damage, economic losses, and even fatalities. One of the leading causes of flooding is the destruction of catchment areas and significant land cover changes. The Melawi sub-Watershed has numerous mining areas, many of which are illegal, leading to upstream erosion and downstream sedimentation. Therefore, mapping flood-prone areas in the Melawi Sub-Watershed is crucial for disaster mitigation and preventing environmental damage that affects community activities. This study aims to map flood-prone areas in the Melawi Sub-Watershed using a Geographic Information System (GIS) and analyze the factors influencing flood susceptibility. The data include land cover, soil type, slope, elevation, rainfall, river buffers, and historical flood inundation. The overlay method was used to create the flood susceptibility map, involving scoring, weighting, and overlaying. The most dominant flood susceptibility level in the Melawi Sub-Watershed is moderate, covering 48.21% of the total area, mainly in the downstream regions. Meanwhile, the low flood susceptibility category is more prevalent upstream, with higher topography and land cover well-preserved.
ENVIRONMENTAL FRIENDLY FIELD TOURISM MANAGEMENT FROM THE PERCEPTION AND EMPOWERMENT OF FARMERS AND LAND OWNERS IN PUNGGUR KECIL VILLAGE, KUBU RAYA REGENCY Irsan, Robby; Soeryamssoeka, SB.; Fitrianingsih, Yulisa
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.v22i2.59033

Abstract

Prospects in tourism especially rice field tourism are being encouraged so that rural communities become independent both financial and sectoral. The concept of a tourism village is a form of community based tourism (CBT). The concept used in CBT is closely related to empowerment. Based on the identification and analysis of the problem, the solution that can be given is to develop community-based and sustainable tourism, to avoid uncontrolled land conversion, to raise public awareness by implementing environmental-based economic management and to harmonize the understanding of land owners to farming communities in ecotourism land management sustainable fields. The problems identified from the results of the FGD are the level of knowledge, attitudes, motivation, and experience of farmers towards the establishment of ecotourism in rice fields. This research was conducted using the PRA (Participatory Rural Appraisal) approach. Several techniques for implementing PRA include: (a) historical path tracing, (b) development needs tracing, (c) livelihood analysis, (d) preparation of activity plans, (e) focus group discussion, (f) mapping. The outputs from this research are (1) roadmap for developing Punggur Kecil agro-tourism village. (2) capacity building of knowledge, attitude, motivation, and experience of farmers in the development of ecotourism in paddy fields. The stages of implementing this research are planning, coordination with village government and land owners, group discussion forums, making a rice field ecotourism road map, mentoring, and monitoring and evaluation.
OVERVIEW OF OCCUPATIONAL HEALTH AND SAFETY IN TRANSPORTATION ACTIVITIES PT ANTAM (PT MEG CONTRACTOR PT ANTAM) Manurung, Amos Parulian; Meilasari, Fitriana; Azwa, Nirmala; Sutrisno, Hendri; Soeryamassoeka, Stefanus Barlian
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.v22i1.55050

Abstract

Occupational safety and health aim to create a safe and comfortable environment in carrying out activities or work. In PT ANTAM's bauxite transportation activities, there are still occupational safety and health risks. The purpose of this study was to determine the frequency rate, accident severity (Severity Rate), and Safe T Score in PT ANTAM's bauxite transportation activities. The research method used is a descriptive method, which is a research method that describes quantitative data according to the conditions in the field of bauxite transportation activities. The results of the study are (1) The results of the calculation of the frequency rate of 0 which indicate that there were no mining accidents in bauxite transportation activities in January-September 2019; (2) The result of the calculation of the severity rate (Severity Rate) of the accident is 0 which indicates the absence of the severity of the mining accidents that resulted in that month due to the absence of mining accidents that occurred in that month; (3) The results of the calculation of the safe T-score of 0 indicate the work accident control program does not show a significant change.
CORRECTION EQUATION OF RAINFALL DATA MAXIMUM A DAY ON TROPICAL RAINFALL MEASURING MISSION (TRMM) IN SEKAYAM SUB-WATERSHED Simbolon, Roy Binsar Sahat Maruli Tua; Soeryamassoeka, SB; Umar, Umar
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.v23i4.66744

Abstract

Flooding can occur because the volume of water flowing in a river exceeds its drainage capacity. The high rainfall intensity can cause the Sekayam River to overflow in Sanggau Regency. A maximum of 1 (one) day of rainfall data from observation stations is needed for flood control and management. However, some observation stations still need complete 1 (one) day maximum rainfall data. One alternative that can be used to obtain rainfall data is to utilize the TRMM satellite. However, the data generated by the TRMM satellite cannot be fully utilized due to interference with infrared and microwave radiation in the atmosphere. It is necessary to make corrections first before rainfall data is used. Correction is done using the correction equation obtained through the test results.    Testing begins with quality testing of observation station rainfall data by conducting homogeneity testing using the data analysis tool with the t-test method: two samples assuming equal variances in MS. Excel and consistency testing using the Worsley Likelihood Ratio Test method. Then, the TRMM satellite rainfall data is filtered by looking at the correlation coefficient results with the condition ≥ 0.5 against the observation station data, which has homogeneous and consistent data properties. TRMM rainfall data that passes will go through the calibration and validation stages. The correction equation obtained during the calibration stage and produces the most significant correlation coefficient in the validation stage will be used to correct TRMM satellite rainfall data so that TRMM satellite rainfall data will be obtained after correction. Data after correction will be tested again with data before correction to see the data quality by looking at the results of RMSE and relative bias.The homogeneity and consistency test of observation stations states that all observation stations have homogeneous and consistent results. TRMM rainfall data that passes the data filtering stage is 21 Grids. TRMM rainfall data with a correction equation with the highest correlation coefficient results is on Grid 27 with the correction equation Y = 0.976 x - 10.685 and a correlation coefficient of 0.737. The correction equation is used to correct rainfall data on 21 Grids that have passed the data filtering stage. The results of RMSE and relative bias in TRMM rainfall data after correction using the correction equation Y = 0.976 x - 10.685 show tiny and satisfactory results in interpretation so that the correction equation can be utilized as a correction of TRMM rainfall data in the Sekayam Watershed.  
GENERATION OF SYNTHETIC RAINFALL DATA IN SEKAYAM SUB-WATERSHED BASED ON TRMM SATELLITE RAINFALL DATA CORRECTION EQUATION Iwansyah, Iwansyah; Soeryamassoeka, SB.; Yulianto, Eko
Jurnal Teknik Sipil Vol 23, No 1 (2023): JURNAL TEKNIK SIPIL EDISI FEBRUARI 2023
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jtst.v23i1.61097

Abstract

The hydrological  analysis is the first stage of the review in waterworks planning. Hydrological analysis necessitates the availability of sufficient data. Data availability tends to have several problems, including a lack of availability, incomplete/empty data, a smaller number of stations, observers, and observation systems, data entry that is still manual, and slow data collection. One possible solution is to use rain satellites. However, TRMM data must be evaluated for field suitability. TRMM (Tropical Rainfall Measurement Mission) rainfall data can help overcome this. TRMM is a NASA mission that uses weather monitoring satellite technology to monitor tropical rainfall. This is also the case for the Sekayam Subwatershed, part of the Kapuas River Basin.In the Sekayam sub-watershed, there are 14 (fourteen) rainfall observation stations managed by the Balai Wilayah Sungai Kalimantan (BWSK) I, but currently only 5 observation stations are still active, namely the SGU-01 Sanggau, SGU-03 Balai Karangan, SGU-06 Entikong, SGU-19 Semuntai and SC-01 Kembayan observation stations with data recorded up to 2019, while the other 9 (nine) observation stations do not have long continuous data, because there are years where rainfall data is not recorded. This is because the recording of rainfall on average stopped until 2005, or even some have stopped operating since the 1990s or early 2000s. This study aims to generate representative synthetic TRMM daily rainfall amount data for the Sekayam sub-watershed based on the correction equations obtained in a series of TRMM rainfall data validation analyses, so that it can be used as alternative daily rainfall data in water resources planning and management in the Sekayam sub-watershed.  From the analysis, it can be seen that synthetic rainfall data in the Sekayam sub-watershed will be valid if it is generated with the linear model correction equation Y = 0.6708 X + 139.123 or can be interpreted as TRMM' = 0.6708 TRMM + 139.123.
DETERMINATION OF THE PRIORITY SCALE OF FLOOD MANAGEMENT IN THE LANDAK SUB-WATERSHED Akafi, M. Ma'ruf; Soeryamassoeka, SB; Gunarto, Danang; Nirmala, Azwa; Danial, Mochammad Meddy
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.v23i2.64168

Abstract

The Landak Sub Watershed is part of Indonesia's Kapuas River Basin, covering an area of approximately 7,921 km2 and comprising three administrative regions: Landak Regency, Kubu Raya Regency, and Pontianak City. Like other regions in Indonesia, the frequency of flood events in the Landak Sub Watershed has been increasing each year, becoming a severe problem as it has caused losses for the community. Therefore, a study is needed to provide an overview of the most suitable flood management measures to minimize floods in the Landak Sub Watershed.This article presents the research results to determine the priority scale of flood mitigation measures suitable for implementation in the Landak Sub Watershed using the Analytic Hierarchy Process (AHP). The determination of criteria, sub-criteria, and flood management alternatives is based on the results of a Focus Group Discussion (FGD) held in Ngabang City on August 30, 2022. The selected flood management alternatives combine both structural and non-structural measures. Once the hierarchy is established, a questionnaire is distributed to determine the appropriate options for flood mitigation in the Landak Sub Watershed.The study results indicate that the priority scale for flood mitigation in the Landak Sub Watershed is by revising regulations and policies. The analysis shows that the priority criterion is Law and Institutions with a weight of 0.376, the priority sub-criterion is Legislation with a weight of 0.213, and the priority alternative is the revision of regulations and policies with a weight of 0.1984. For the correction of rules and procedures to be effectively carried out, all stakeholders related to flood control in the Landak Sub Watershed must be involved.
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