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All Journal IJOCE (International Journal of Offshore and Coastal Engineering) Jurnal Laot Ilmu Kelautan Riset Sains dan Teknologi Kelautan
Arfena Deah Lestari
Universitas Tanjungpura
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Engineering Environmental Science Industrial & Manufacturing Engineering

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Pemetaan Daerah Rawan Bencana Dalam Upaya Mengurangi Risiko Banjir Rob Berbasis Sistem Informasi Geografis (SIG) Di Pesisir Kabupaten Mempawah Provinsi, Kalimantan Barat Indah Hairunnisah; Jasisca Meirany; Nana Novita Pratiwi; Arfena Deah Lestari; Mochammad Meddy Danial
Jurnal Laot Ilmu Kelautan Vol 8, No 1 (2026): Jurnal Laot Ilmu Kelautan
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jlik.v8i1.12334

Abstract

Banjir rob merupakan masalah yang sering terjadi di wilayah pesisir, termasuk Kabupaten Mempawah yang memiliki potensi tinggi untuk mengalami banjir rob. Kabupaten Mempawah tercatat sebanyak 49 kali mengalami banjir rob selama tahun 2013-2024. Penelitian ini bertujuan untuk perencanaan dan rekomendasi mitigasi bencana banjir rob di Pesisir Kabupaten Mempawah. Penelitian ini menggunakan metode kuantitatif yaitu overlay dan skoring terhadap parameter kerawanan bencana banjir rob. Adapun parameter yang digunakan meliputi kemiringan lereng, ketinggian lahan, penggunaan lahan, jenis tanah, jarak dari pantai, serta pasang surut air laut. Hasil penelitian menunjukkan potensi banjir rob di Pesisir Kabupaten Mempawah yaitu potensi rendah dengan interval 5-11 memiliki luasan sebesar 2.642,783 ha. Potensi sedang yang berada pada interval 12-17 memiliki luasan sebesar 18.787,175 ha, dan potensi tinggi dengan interval 18-23 mencakup luasan sebesar 21.029,920 ha. Rekomendasi mitigasi bencana mencakup tahap pra-bencana dalam bentuk mitigasi struktural dan non-struktural. Mitigasi saat bencana meliputi evakuasi korban dan distribusi pangan ke posko-posko korban banjir rob. Sedangkan mitigasi pasca-bencana berupa pembersihan tempat tinggal dan lingkungan.
Design and Construction of Flap Type Wave Maker Using Servo-Motor Equipped with The Reducer for Generating Waves in 3-D Wave Tank Mochammad Meddy Danial; Seno Darmawan Panjaitan; Arfena Deah Lestari; Jasisca Meirany; Teguh Suratman; Muhammad Abqari
International Journal of Offshore and Coastal Engineering Vol. 7 No. 2 (2023)
Publisher : Department of Ocean Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25800914.v7i2.2364

Abstract

Laboratory physical models in ocean engineering field are beneficial methods to conduct various research experiments. One of the most important equipment in the ocean engineering laboratory is a wave maker to generate and mimic the actual ocean wave. This research aims to design and construct a wave maker to generate waves on the wave tank with the dimensions of 7.5 m x 15 m x 1 m. The selected type of wave maker is a flap with hinged at the bottom, which is driven by a 3-phase motor 5 HP and gearbox reducer WPA 80 with a ratio of 1:40. The flap was connected to pulley B1-12 by shaft. There are three designs of wave maker system, i.e., stroke length of 0.5 m and the gearbox reducer with ratio 1: 40; stroke length of 0.5 m and the gearbox reducer with vbelt and pulley; stroke length of 0.05 m and the gearbox reducer with ratio 1: 40. The performance of the wave maker shows that the third design is more satisfying and suitable than the two others. However, the absorption structure must be added from both ends of the wave tank to reduce the wave reflection.
DESAIN DAN STABILITAS KAPAL WISATA GALAHERANG MENGGUNAKAN SOFTWARE MAXSURF Aqilla Ananta; Arfena Deah Lestari; Mochammad Meddy Danial
Riset Sains dan Teknologi Kelautan Volume 8, Number 2, Tahun 2025
Publisher : Departemen Teknik Kelautan Fakultas Teknik Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to analyze the design and stability of the Galaherang tourist vessel operating on the Kapuas River, Pontianak, using Maxsurf software. The Galaherang is a river-based passenger vessel designed to accommodate approximately 97 passengers and 4 crew members. The analysis includes hull form modeling using Maxsurf Modeler and stability simulation using Maxsurf Stability. The study encompasses hydrostatic calculations, equilibrium analysis, and large angle stability assessment. The results show that the vessel has principal dimensions of LOA 21 m, LWL 17.6 m, beam 5 m, depth 3 m, total height 8 m, and draft 1.61 m. The vessel’s transverse metacentric height (GMt) is 0.957 m under full load conditions. The righting arm (GZ) curve reaches a maximum of 0.523 m at a heeling angle of 45.5°, with an area under the curve of 71.583 m·deg for the 0–30° range. Simulations under dynamic conditions, such as passenger crowding and turning, result in heel angles ranging from 7.5° to 10°, which remain within safe limits. The design complies with the minimum stability criteria set by IMO Resolution A.749(18) Chapter 3 and the BKI standards for passenger vessels, meeting requirements for initial stability, large-angle stability, and longitudinal balance.
Co-Authors Aqilla Ananta Indah Hairunnisah Mochammad Meddy Danial Muhammad Abqari Pratiwi, Nana Novita Seno Darmawan Panjaitan Teguh Suratman