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All Journal Jurnal Ilmu dan Teknologi Kelautan Tropis KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan JURNAL RISET TEKNOLOGI KELAUTAN Civil Engineering Journal Journal TEPAT: Teknologi Terapan untuk Pengabdian Masyarakat EPI International Journal of Engineering Jurnal Penelitian Enjiniring Fakultas Teknik Unhas Zona Laut : Jurnal Inovasi Sains dan Teknologi Kelautan Maritime Park: Journal Of Maritime Technology and Socienty Riset Sains dan Teknologi Kelautan Collaborate Daily Book Series
Hasdinar Umar
Departemen Teknik Kelautan Fakultas Teknik Universitas Hasanuddin
Automotive Engineering Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Library & Information Science Mechanical Engineering Public Health Transportation

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Socialization of Coastal and Marine Geohazard of Makassar City Coastal Tourism Area Rachman, Taufiqur; ., Juswan; Paroka, Daeng; Baeda, Achmad Yasir; Rahman, Sabaruddin; Paotonan, Chairul; Umar, Hasdinar; Alie, Muhammad Zubair Muis; ., Ashury; Husain, Firman; Assidiq, Fuad Mahfud
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 6 No 2 (2023): Let us Collaborate for Community Issues
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v6i2.451

Abstract

Coastal and marine geohazard threats can occur in coastal tourism areas in Makassar City. Several coastal tourism sites in Makassar City are managed by the community, namely by the Tanjung Merdeka Community Empowerment Agency (LPM) and acts as a partner for socialisation activities. Tourism managers are still ignorant of the potential for coastal and marine geohazards, such as the lack of information on geohazard signs and the potential for accidents that lead to disasters for tourism visitors. Socialisation of coastal and marine geohazards in Makassar City's coastal tourism areas has been carried out with an increase in the average knowledge of participants by 45.3%. The increase in partner knowledge includes awareness, preparedness, and disaster response attitudes about coastal and marine geohazard phenomena in coastal tourism activities, which can ultimately encourage and realise partners as community-based tourism managers who implement early warning of disaster risk and occupational safety. Strengthening partners is realised by handing over coastal and ocean geohazard signs as an early warning of disasters that can occur at tourist sites.
OPTIMALISASI FUNGSI BREAKWATER PELABUHAN PENDARATAN IKAN (PPI) TANAH BERU KABUPATEN BULUKUMBA Purwasih, Ratih; Rahman, Sabaruddin; Umar, Hasdinar
Riset Sains dan Teknologi Kelautan Volume 7, Nomor 2, Tahun 2024
Publisher : Departemen Teknik Kelautan Fakultas Teknik Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62012/sensistek.v7i2.41692

Abstract

At the Fish Landing Harbor (PPI) coastal protection buildings have been built to protect the area in an effort to obtain calm waters at the harbor. A breakwater is infrastructure built to break waves by absorbing wave energy. The types of wave breakers are sloping side breakwaters, vertical side breakwaters and mixed wave breakers. Waves are a form of energy that can shape beaches, cause currents and sediment transport in perpendicular directions and along the coast, and cause forces that act on coastal buildings. The aim of this research is to determine the characteristics of wave transmission and alternative breakwater construction in ports, simulated using a numerical hydrodynamic model to simulate waves. The input data is wave height, wave period and wave direction. The Fish Landing Harbor Breakwater (PPI) is not yet optimal because the waves entering the port area in the west season reach 1.2 meters. Based on the results of the breakwater design used to optimize its function, this can be proven by the existence of breakwater construction designed in modeling where the breakwater with a length of 150 m, the wave height entering the protected area is 0.81 m, the breakwater with a length of 300, the wave height entering the area protected by 0.2 m, and a breakwater with a length of 500, the wave height entering the protected area is 0.03 m.
Disaster Preparedness Psychoeducation for Students of Athirah Islamic School Umar, Hasdinar; Paotonan, Chairul; Baeda, Achmad Yasir Baeda Yasir; Rahman, Sabaruddin Rahman; Assidiq, Fuad Mahfud; Husain, Firman; Nadjmi, Nurul; Nur, Sitti Hijraini; K, Riswal; Amaliyah, Novriany; Umar, Muh. Fitrah Ramadhan; Munadiah, Nurul; Sakinah, Whina
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 7 No 2 (2024): Kolaborasi yang Kuat untuk Kekuatan Kemasyarakatan
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v7i2.469

Abstract

Makassar is one of the cities in Indonesia that is unlikely to be free from natural disasters. The problem is that the community, especially school-age children, is not yet responsive and alert and does not understand disaster preparedness's importance. Low knowledge, lack of information provision, and disaster risk management can increase the number of victims. Athirah Islamic School, one of the partners in this service, provides facilities for Psychoeducation activities for students. From this problem, a solution for disaster risk reduction is needed by giving psychoeducation (disaster mental health) and disaster preparedness around general reactions (behavior, emotion, cognition, and physical). Psychoeducation materials will be delivered by the Bosowa University psychology team, also partners in this Service activity. The implementation method of this service program includes mentoring and disaster preparedness training from a psychological perspective. The research method used in this service is experimental with a pretest-posttest design approach. The statistical analysis results showed a difference in student knowledge regarding disaster preparedness before and after participating in psychoeducation with a sig <0.05. This service concludes that the training provided to Athirah Bukit Baruga Islamic Middle School students positively impacts students' disaster preparedness knowledge.
Transplantasi Coral sebagai Aksi Peduli Lingkungan untuk Pemanfaatan yang Berkelanjutan dj, Ashury; ., Juswan; Rachman, Taufiqur; Paroka, Daeng; Baeda, Achmad Yasir; Rahman, Sabaruddin; Umar, Hasdinar; Paotonan, Chairul; Alie, Muh. Zubair; Husain, Firman; Assidiq, Fuad Mahfud; Nasir, Andi Mega Mustika
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 7 No 2 (2024): Kolaborasi yang Kuat untuk Kekuatan Kemasyarakatan
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v7i2.553

Abstract

The existence of coral reefs in Indonesia ranks first in area and type. The total area of coral reefs owned by Indonesia is 14% of the total area of coral reefs in the world. Coral reefs have an important value in life, both in terms of ecology to promising economic value. Therefore, the Department of Marine Engineering in collaboration with partners of the South Sulawesi Provincial Tourism Office held an activity “Coral Transplantation as an Environmental Care Action for sustainable use”. This activity has the aim of providing an understanding of the importance of knowledge about the economic and environmental benefits of coral reefs as a beach / sun tourism attraction for domestic and foreign tourists to visit the province of South Sulawesi, especially on Badi Island in Pangkep Regency (Pangkajene Islands). Coral reefs that have been damaged require a long time to recover, due to the slow growth rate of corals. Therefore, human intervention through various methods and means becomes indispensable to improve and rehabilitate the condition of coral reefs. One rehabilitation technique that has been widely recognized and applied in various parts of the world is coral transplantation. By using lecture and discussion methods, as well as coral reef rehabilitation efforts through the real action of coral transplantation. The results obtained showed that there was an increase in knowledge before and after the community participated in the activity and the degradation of coral reefs that occurred could be restored through transplantation of 500 donor corals. The conclusion of this activity indicates that the presentation of material in the form of lectures and discussions has increased community knowledge, and the real action of coral reef transplantation can increase coral reef colonies as a sustainable use.
A Novel Exact Solution of Longshore Current and Its Application on Permeable Groin Umar, Hasdinar; Assidiq, Fuad M.; Triatmadja, Radianta; Baeda, Achmad Y.
Civil Engineering Journal Vol 11, No 2 (2025): February
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/CEJ-2025-011-02-07

Abstract

One major environmental problem exacerbated by longshore currents is beach erosion. Groins are a common defense tactic built perpendicular to the shore. However, conventional impermeable groins promote downstream erosion and disrupt sediment movement. Permeable groins provide a more environmentally friendly option, allowing some sediment to flow through. This study examines the effects of permeable groins on longshore currents. Permeable groins are not included in currently used longshore current equations. This study fills this gap by creating a new longshore current velocity equation considering permeable groins. The longshore current equation with the groin was developed based on the momentum equation in the longshore direction without the influence of lateral mixing and the assumption that base friction will rise due to the groin. Therefore, it was determined that the base shear stress after the groin was equal to the base shear stress plus the drag caused by the groin. The result shows that the longshore current equation through the groin is a function of the breaking wave parameter and the resistance parameter owing to the groin. Longshore current velocities with and without permeable groins of different densities were measured in wave basins. We collected information on groin characteristics, current velocities, and breaking wave heights. This investigation validates the shortcomings of the current equations. Doi: 10.28991/CEJ-2025-011-02-07 Full Text: PDF
Numerical Simulation of Sedimentation Patterns at the Tallo River Estuary (Case Study of New Makassar Container Terminal 2) Umar, Hasdinar; Rahman, Sabaruddin; Tuharea, Natasha Dewanti
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 22, No 1 (2025): February
Publisher : Department of Naval Architecture - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/kapal.v22i1.67855

Abstract

The increase in community activities in the Makassar waters has made the government plan long-term development by exploiting the potential of the sea through coastal reclamation, which aims to meet increasingly limited land needs, one of which is the construction of the New Makassar Container Terminal 2. This development causes changes in coastal sedimentation patterns and current patterns. This research aims to determine the flow patterns and sediment patterns that occur in the Tallo River Estuary due to the construction of the New Makassar 2 Container Terminal and simulated with a numerical hydrodynamic model using scenarios resulting from tidal measurements and wind as generators. The research results show that the flow pattern around the Tallo River Estuary before and after the construction of the New Makassar 2 Container Terminal decreased by 51.288% from 0.105 m/s to 0.051 m/s. The direction of the current at the highest tide conditions moves from the open sea towards the estuary, while at the lowest low tide conditions, it moves from the estuary towards the open sea. The distribution of sediment in the waters of the Tallo River Estuary shows that changes in the basic morphology of the Tallo River Estuary tend to be high; namely, in the review lines 1 - 5, there is a change in sedimentation of 0.055 m; 0.096m; 0.048m; 0.158 m and 0.059 m. So, it can be concluded that the construction of the New Makassar 2 Container Terminal affects the water conditions in the Tallo River Estuary.  
Assessing Sediment Transport and Shoreline Dynamics in High-Energy Tropical Coasts Umar, Hasdinar; Paotonan, Chairul; Rachman, Taufiqur; Nur, Sitti Hijraini; Muhiddin, Amir H.; Maming, Muhammad Idhil; Andriadi, Andi M. Rezky; Assidiq, Fuad Mahfud
Civil Engineering Journal Vol. 11 No. 7 (2025): July
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/CEJ-2025-011-07-022

Abstract

This research examines coastal erosion in North Galesong, Indonesia, by validating longshore sediment transport (LST) equations and predicting shoreline changes over ten years. To evaluate sediment movement and coastline alterations, it integrates field data on sediment grain size and wave characteristics with numerical modeling techniques, including the CERC equation and finite difference methods. Sieve analysis revealed a range of sediment textures (D50: 0.17–0.65 mm), predominantly medium-fine sand. Wave analysis indicated a dominance of moderate energy southwesterly waves (1.5 m height, 6.39 s period) that aid sediment transport. The empirical LST models, calibrated with local data, closely matched numerical simulations (error <20%), predicting an annual net northward sediment transport of 406,869 m³. Shoreline analysis across 15 segments showed significant spatial variability: severe erosion occurred in Cell 4 (Δy = -0.82 m), while Cell 3 saw accretion (Δy = +0.68 m), influenced by wave direction, sediment supply, and coastal morphology. This study underscores the value of hybrid empirical-numerical methods in data-scarce regions and emphasizes the need for local model calibration to enhance coastal resilience. The findings inform sustainable management practices, promoting adaptive strategies to address sediment imbalances and hydrodynamic changes due to climate factors.
Analysis Of Restriction Rules Of Gross Tonnage Fishing Ship On The Sunda Sea Coast Umar, Hasdinar
Maritime Park: Journal of Maritime Technology and Society Volume 1, Issue 2, 2022
Publisher : Department of Ocean Engineering, Faculty of Engineering, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (644.531 KB) | DOI: 10.62012/mp.v1i2.21955

Abstract

The Sunda Strait has a significant enough fishery potential in Indonesia. Fish catches from the Sunda Strait are landed in Pandeglang Regency, one of which is at the Labuan Coastal Fishing Port. The types of fish that are targeted for catching are mackerel and tuna. The high selling price of fish causes fishing operations to continue to be improved. Fishing operations that continue to increase can lead to a scarcity of fishery resources. Therefore, it is necessary to study the rate of fish resource utilization to determine their status. This study aimed to evaluate the rate of exploitation of tuna in the Sunda Strait based on fish catch data on 30 GT vessels and analyze it using policies issued by the Indonesian government. In this study, a simple linear regression method was used. Result of analysis, in 2025, the fish stock is only 21,682 ton, while the number of fish taken is 66,497 ton, which means that in 2025 there will be no more fish because the fish stock has run out and cannot meet the number of fish that needs to be taken.
Dredging Analysis at Makassar New Port Umar, Hasdinar; Ashury, Ashury; Ayyub, Muhammad
Maritime Park: Journal of Maritime Technology and Society Volume 2, Issue 1, 2023
Publisher : Department of Ocean Engineering, Faculty of Engineering, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62012/mp.v2i1.24087

Abstract

Dredging is used to create new harbors, berths, or waterways, or to deepen existing facilities to allow vessels with heavy drafts to access them. The dredging analysis at Makassar New Port aims to calculate how much the dredging volume. With this data, research can be used as a source of reference and consideration for researchers and port authorities. The research method is descriptive, where the primary data is data obtained based on direct observation at the research location, while secondary data is data that is researched and collected by related parties. Then an analysis is carried out to calculate the volume of dredging at Makassar New Port. From the results of the analysis, it can be concluded that dredging was carried out with a dredge volume reaching 1,953,764.47 m3, with a processing time of 349 days.
Study of Identification of Microplastic Waste in Sand Sediment at Lambutoa Beach, Takalar Regency Umar, Hasdinar; Husain, Firman; Humairah, Indah Putri
Maritime Park: Journal of Maritime Technology and Society Volume 2, Issue 2, 2023
Publisher : Department of Ocean Engineering, Faculty of Engineering, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62012/mp.v2i2.27721

Abstract

Indonesia is currently one of the countries in East Asia which produces around 50% of the world's coastal waste. Microplastics in Indonesian seawater range from 30 to 960 particles/liter. The purpose of this study was to determine the size, amount, type, and microplastic polymers present on Lambutoa Beach in Takalar Regency. This study uses quantitative methods to examine certain populations or samples. Quantitative research methods are used to examine populations or certain samples, data collection uses research measuring instruments, and data analysis is quantitative/statistical in nature, with the aim of testing and proving the hypotheses that have been made/defined. The stages carried out during the research process were sand sediment sampling, sand sediment sample processing, observation and identification of microplastic types, and testing using the FTIR tool. From the results of this study, it was found that there were 49 samples of microplastic waste with an average size of 1-5 mm. There are three types of microplastic contained in the sand sediments that have been tested, namely films, fragments, and foam. For the type of polymer that is most often found in testing sediment samples using the FTIR tool on microplastic samples, these are Other (Nylon) and PET (Polyethylene Terephthalate) polymers
Co-Authors ., Ashury A. Arwin Amiruddin Abdi Kurniawan Achmad Yasir Baeda Achmad Yasir Baeda Adisasmita, Sakti Adji Alie, Muh. Zubair Alkhaer, Ilham Andi Mega Mustika Andi Muhammad Ikram Andriadi, Andi M. Rezky Ariska Ariska Ashury Djamaluddin Ashury, Ashury Assidiq, Fuad M. Assidiq, Fuad Mahfud Ayyub, Muhammad Baeda, Achmad Y. Baeda, Achmad Yasir Baeda Yasir Caronge, Muhammad Akbar Chairul Paotonan Chairul Paotonan Chairul Paotonan Chairul Paotonan Daeng Paroka Daeng Paroka Daeng Parokka Deni Mulyawan dj, ashury F.M. Assidiq Firman Husain Firman Husain Fuad Mahfud Assidiq Hasan, Wahyuni Humairah, Indah Putri Ichwanul Haq Bahtiar Ilham Alkhaer Juswan . Juswan Sade K, Riswal M. Asad Abdurrahman Maming, Muhammad Idhil Muhammad Fauzan A. Narayana Jufri Muhammad Fitrah Ramadhan Umar Muhammad Zubair M Alie Muhammad Zubair Muis Alie Muhiddin, Amir H. Munadiah, Nurul Nadjmi, Nurul Nasir, Andi Mega Mustika Nizam Nizam Novriany Amaliyah Nur Yuwono Pongmada, Silman Radianta Triadmadja Rahman, Sabaruddin Rahman Rahmi Amin Ishak Sabaruddin Rahman Sabaruddin Rahman Sabaruddin Rahman Sabaruddin Rahman Sabaruddin Rahmanr Sakinah, Whina Sitti Hijraini Nur Taufiqur Rachman Taufiqur Rachman Taufiqur Rachman Taufiqur Rachman Taufiqurrahman Taufiqurrahman Teguh Pairunan Tuharea, Natasha Dewanti Umar, Muh. Fitrah Ramadhan