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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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PEMBUATAN KURVA IDF DAS MELAWI MENGGUNAKAN DATA CURAH HUJAN SATELIT TRMM YANG DIVALIDASI Sidik, Muhammad; Kartini, Kartini; Soeryamassoeka, Stefanus Barlian
JeLAST : Jurnal Teknik Kelautan , PWK , Sipil, dan Tambang Vol 10, No 1 (2023): JeLAST Edisi Februari 2023
Publisher : JeLAST : Jurnal Teknik Kelautan , PWK , Sipil, dan Tambang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jelast.v10i1.62404

Abstract

Bencana banjir setiap tahunnya melanda daerah perhuluan Kalimantan Barat, demikian pula DAS Melawi. Pada tahun 2021 banjir yang terjadi di DAS Melawi mengalami intensitas curah hujan yang tinggi, sehingga berdampak kerugian pada masyarakat. Intensitas curah hujan yang tinggi diduga akibat perubahan iklim global. Sehingga diperlukan data curah hujan yang cukup akurat dan alat bantu seperti kurva IDF untuk memprediksi intensitas curah hujan. Untuk menangani hal tersebut, dapat memanfaatkan kemajuan teknologi saat ini dengan menkombinasikan data curah hujan satelit TRMM yang dikombinasikan dengan data curah hujan observasi. Selanjutnya dilakukan analisis parameter statistik dan parameter distribusi yang paling sesuai. Intensitas curah hujan dihitung dengan metode mononobe. Hasil penelitian dari data kombinasi curah hujan satelit TRMM dan curah hujan observasi distribusi yang sesuai adalah metode gumbel tipe I. Besaran intensitas periode ulang 2, 5, 10, 20, 50, dan 100 tahun dengan hasil 195.94 mm, 237.09 mm, 264.30 mm, 290.77 mm, 324.94 mm, dan 350.69 mm. Sedangkan persamaan yang didapatkan dari hubungan intensitas dan durasi pada kurva IDF didapatkan persamaan periode ulang 2 tahun yaitu Y2=-0.3215X+108.25, 5 tahun yaitu Y5=-0.3908X+131.59, 10 tahun yaitu Y10=-0.4536X+146.69, 20 tahun yaitu Y20=-0.4792X+161.38, 50 tahun yaitu Y50=-0.5356X+180.35, dan 100 tahun yaitu Y100=-0.578X+194.63. Dengan Y merupakan prediksi nilai intensitas curah hujan dan X merupakan nilai bebas data curah hujan.  Kata Kunci: Banjir, Intensitas, Melawi, Mononobe, TRMM
Perbandingan Hasil Analisis Tingkat Bahaya Erosi Antara Metode Usle dan Rusle Di Sub Das Kapuas Hulu Paraya, Mario Igor; Yulianto, Eko; Soeryamassoeka, Stefanus Barlian
Jurnal Teknologi Lingkungan Lahan Basah Vol 13, No 2 (2025): July 2025
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jtllb.v13i2.90927

Abstract

Abstract: The Kapuas Hulu Sub-watershed is a vital part of the Kapuas River ecosystem, facing the risk of soil erosion due to human activities and environmental factors This research seeks to.compare the results for erosion level analysis using the Universal Soil Loss Equation (USLE) and the Revised Universal Soil Loss Equation (RUSLE) methods.. The analysis is based on rainfall data, topography, soil type, and land cover, processed using Geographic Information Systems (GIS).In the USLE method, Bols erosivity is used as the basis for analy-sis. In the RUSLE method, surface runoff erosivity is calculated using runoff discharge from the Nakayasu Synthetic Unit Hydrograph (HSS Nakayasu) with a return period of Q100 and surface runoff volume using the SCS-CN method.Based on the analysis, USLE method produces a total erosion result of 87,865.414 ton/hectare/yr, while RUSLE method results in an erosion result of 55,558.402 ton/hectare/yr. This comparison shows that the erosion value estimated using RUSLE is approximately 0.6 times lower than that of USLE.The eroded land area in both methods is the same, at 579,955.035 hectares, indicating that the difference lies only in the estimated erosion rate, not in the distribution of the affected area. The USLE method yields a higher erosion value than the RUSLE method, suggesting that these two methods have different approaches in calculating the factors influencing erosion rates, with RUSLE generally providing lower estimated values
Perencanaan Sistem Penyediaan Air Bersih Desa Kualan Hulu Mahendra, Dandy Roffi; Soeryamassoeka, Stefanus B; Gunarto, Danang
Jurnal Teknologi Lingkungan Lahan Basah Vol 12, No 2 (2024): April 2024
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jtllb.v12i2.75271

Abstract

Saat ini Desa Kualan Hulu masih belum memiliki sistem penyediaan air bersih yang memadai, sehingga masyarakat masih menggunakan air sungai dengan kualitas yang kurang baik. Dengan memanfaatkan sumberi air baku Sungai Maap, penelitian ini dilakukan untuk mengetahui seberapa besar kebutuhan air bersih bagi Desa Kualan Hulu serta perencanaan sistem penyediaan air bersihnya dan potensi dari sumber air baku Sungai Maap. Kebutuhan air Desa Kualan Hulu ditinjau dengan menggunakan metode aritmatik, ketersediaan air ditinjau dengan metode Mock, pemeriksaan sampel air di laboratorium untuk diuji kualitas airnya dan perencanaan pipa transmisi menggunakan perangkat lunak EPANET. Dari hasil analisis kualitas air menunjukkan sumber air baku Sungai Maap dapat digunakan sebagai sumber air bersih bagi Desa Kualan Hulu dengan kualitas air yang baik. Ketersediaan air Sungai Maap maksimum pada bulan September sebesar 908,53 lt/detik dan terendah 47,02 lt/detik pada bulan November, menunjukkan ketersediaan air Sungai Maap dapat mencukupi kebutuhan air Desa Kualan Hulu sebesar 4,82 lt/detik. Pipa transmisi direncanakan menggunakan pipa HDPE dengan diameter 125-150 mm dengan panjang 6,251 km. Dari hasil analisis menunjukkan bahwa sumber air baku Sungai Maap dapat dimanfaatkan sebagai sumber air bersih bagi penduduk Desa Kualan Hulu berdasarkan syarat kualitas, kuantitas dan kontinuitasnya.
Analisis Penentuan Indeks Bahaya Erosi di Sub DAS Sekayam Liehan, James; Gunarto, Danang; Soeryamassoeka, Stefanus Barlian
Jurnal Teknologi Lingkungan Lahan Basah Vol 13, No 1 (2025): Januari 2025
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jtllb.v13i1.90748

Abstract

The Sekayam River, the main and longest river in the Sekayam Watershed (DAS Sekayam), plays a strategic role in supporting the livelihoods of local communities. Erosion not only disrupts the activities of local communities along the riverbanks but also increases the risk of flooding and worsens environmental conditions. This study aims to: (1) Identify the factors contributing to the rate of erosion in the Sekayam Sub-Watershed, (2) Determine the level of erosion hazard/erosion rate using the Universal Soil Loss Equation (USLE) method and assess the erosion hazard index in the Sekayam Sub-Watershed, and (3) Develop an erosion hazard index map for the Sekayam Sub-Watershed, illustrating the classification and severity of erosion hazards using ArcGIS software.This study analyzes the erosion hazard index in the Sekayam Sub-Watershed using the USLE method, which considers factors such as rainfall erosivity (R), soil erodibility (K), slope length and steepness (LS), land management (C), and conservation practices (P). Based on the analysis, the Sekayam Sub-Watershed has an average annual rainfall of 3,058.94 mm, with dominant soil types being Ultisol (86%) and Inceptisol (14%), and mostly flat slopes (61.75%). These factors influence the erosion hazard level, which is classified as very high, particularly in land cover types such as mixed dryland agriculture with shrubs. The erosion hazard index mapping results show an average IBE value of 7.9510, indicating a high level of erosion risk.
PRIORITIZATION OF MITIGATION AND FLOOD RISK REDUCTION EFFORTS IN KOTA SINGKAWANG Ranate, Chelsea; Soeryamassoeka, SB; Gunarto, Danang
Jurnal Teknik Sipil Vol 24, No 1 (2024): Vol 24, No 1 (2024): JURNAL TEKNIK SIPIL EDISI FEBRUARI 2024
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v24i1.76660

Abstract

Floods present significant challenges to urban areas globally, including Kota Singkawang in West Kalimantan, Indonesia, due to its susceptibility to seasonal monsoons. Mitigation efforts are crucial to protect lives, infrastructure, and sustainable development amidst urbanization and climate change. This research delves into flood risk reduction methods by integrating technical, economic, social, and environmental dimensions to aid policymakers and stakeholders in efficient resource allocation.This study aims to enhance flood resilience by identifying critical intervention areas through structured approaches, leveraging literature reviews, field surveys, and consultations with local authorities and communities. Prioritizing flood risk mitigation involves evaluating existing strategies and implementing structural measures like flood control buildings.The analysis findings indicate that the primary focus for mitigation efforts and flood risk reduction in Kota Singkawang should involve structural measures, specifically implementing flood control structures like polder systems and retention ponds to effectively address sea tides and heavy rainfall impacts. However, given the preliminary nature of this study, a more thorough investigation with comprehensive data is necessary to implement these structural technologies fully. This comprehensive analysis underscores the significance of comprehending flood risk complexities to formulate sustainable urban strategies in Kota Singkawang.
Electrocoagulation and Filtration for Brackish Peat Water Desalination Danial, Mochammmad Meddy; Soeryamassoeka, S.B.; Irmansyah, Fitri; Purnaini, Rizki; Teguh, Rahmat
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.v24i4.86660

Abstract

Electrocoagulation and filtration have been recognized as effective solutions for water treatment for many years. However, their application in the desalination process remains relatively uncommon. This research will highlight the requirement of systematic investigation into the potential of these processes for effectively reducing salinity levels on brackish water sources. Therefore, this experimental study in a laboratory setting is proposed to explore the efficacy of electrocoagulation combined with filtration in desalinating brackish peat water. The study aims to analyze the performance of these combined treatment processes by measuring key water quality parameters, including salinity and total dissolved solids (TDS), before and after treatment. Through a series of controlled experiments, the effects of varying treatment durations and operational conditions will be assessed to determine optimal parameters for maximum desalination efficiency. By employing advanced statistical analyses, such as ANOVA, this research will rigorously evaluate the effectiveness of the treatment processes. The combination of electrocoagulation (4 hours) and filtration (30 minutes) achieves significant reductions in both salinity and TDS, with a 40% to 83% improvement in water quality. ANOVA confirms these results, showing significant effects (F F-crit, P 0,05). While filtration alone is more effective than electrocoagulation, the combined approach yields even greater contaminant removal, highlighting its superior efficiency.
Mapping of Flood-Prone Area Under the Impact of Tidal Influence in Singkawang City Senoaji, Arif; Soeryamassoeka, S.B.; Gunarto, Danang
Jurnal Teknik Sipil Vol 24, No 1 (2024): Vol 24, No 1 (2024): JURNAL TEKNIK SIPIL EDISI FEBRUARI 2024
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v24i1.73031

Abstract

Flooding is a recurring seasonal hazard that occurs when water overflows its natural channels and inundates surrounding areas. In the last three years, Singkawang City has experienced frequent flooding that has disrupted community activities, including education and public services, although no casualties have been reported. To reduce flood impacts, comprehensive and integrated flood management is required, beginning with the identification and mapping of flood-prone areas. This study aims to analyze tidal characteristics and assess flood vulnerability in Singkawang City by producing a zoning map of flood-prone areas. The analysis used several parameters, including distance from the coastline, river buffer, land slope, land elevation, and land cover. Flood-prone areas were mapped using Geographic Information Systems (GIS) combined with the weighted overlay method. The results show that 24,048.449 ha (43.947%) of the study area are classified as safe from flooding, while 19,938.498 ha (36.436%) are categorized as not vulnerable. Vulnerable areas cover 9,068.206 ha (16.571%), and very vulnerable areas cover 1,666.860 ha (3.046%).
EVALUATION OF DRAINAGE CHANNEL CAPACITY ON JALAN BUDI KARYA, PONTIANAK SELATAN SUB-DISTRICT Suci, Suci; Herawati, Henny; Umar, Umar; Soeryamassoeka, SB; Gunarto, Danang
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.v22i2.59386

Abstract

Drainage is one of the most critical components to be maintained and developed in a strategically healthy and comfortable urban environment. There are often puddles of water on Budi Karya Street, especially at the Permai Reservoir Complex. In solving the existing inundation problem, primary and secondary data are needed. Primary data is in the form of longitudinal and transverse sections of the channel, while secondary data is in the form of location maps, tidal data, and rainfall data used to analyze hydrology. Based on the analysis of the capacity of Budi Karya's drainage channel using  HEC  -RAS software as a drainage channel flow modeling tool to view the water level profile along the channel, channel perspective drawing, or hydrograph, it was found that the Budi Karya drainage channel could not accommodate the planned discharge for return periods 2 and 5 Year. Therefore, it is necessary to improve drainage in the form of the normalization of drainage channels.
WATER LEVEL PROFILE IN PARIT BERKAT DRAINAGE CHANNEL OF PUNGGUR BESAR Riandini, Alfi; Nurhayati, Nurhayati; Soeryamassoeka, S.B.
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.v23i2.62537

Abstract

Floods are common natural catastrophes in Indonesia, particularly during the rainy season. The Parit Berkat water catchment region is one of the locations that frequently experience flooding. The channel's capacity must be increased to accommodate the current water discharge, resulting in this condition. Several reasons are responsible for the diminished capacity of the canal. For instance, inhabitants' activities along canal banks might contribute to the siltation of channels. This research aimed to evaluate the influence of tides and rainfall on the flow of the Parit Berkat Canal. This research provided the use of both primary and secondary data. The leading information consists of measurements of the cross-section and length of the channel and the elevation of the tidal water level over 15 days. Secondary data consists of the maximum daily rainfall data received from Balai Wilayah Sungai Kalimantan I (BWSK I) and the location map for the research. The flow profile is simulated using HEC-RAS. The findings demonstrate that when maximum rainfall and low tides coincide, 13 stations are safe in the 2-year return period of rain, eight stations are safe in the 5-year return period, and six stations are safe in the 10-year return period.
RAINFALL ANALYSIS FOR CREATING INTENSITY-DURATION-FREQUENCY (IDF) CURVE OF PONTIANAK CITY Hidayati, Nurul; Soeryamassoeka, SB; Herawati, Henny
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.v23i4.66810

Abstract

Pontianak is a lowland area prone to flooding if it rains with high rainfall intensity. Analysis of the planned flood discharge is needed to overcome the flood problem. The design flood discharge analysis can be calculated using the rational method, which requires rain intensity data in terms of duration and frequency, which can be described as an IDF curve.This research was conducted by calculating the average daily maximum rainfall after conducting consistency and homogeneity tests on the rainfall data used and determining the selected distribution based on the results of statistical parameters. The rain design with various return periods is calculated with the desired distribution that matches Pontianak City. The rainfall intensity calculation uses the Mononobe method because the rainfall data owned is daily rainfall data.The analysis results show that the Log Pearson Type III distribution corresponds to the data distribution in Pontianak. From the IDF curve, it can be seen that high rainfall intensity lasts for a short duration; this can prove the general nature of rain that the faster the rain stays, the higher the rainfall intensity and vice versa. The IDF curve can assist in calculating the design flood discharge.  
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