Analisis Arus Dan Gelombang Terhadap Keselamatan Pelayaran Pada Alur Ketapang - Gilimanuk

Nugraha, Syahrindra Rif'at (2025) Analisis Arus Dan Gelombang Terhadap Keselamatan Pelayaran Pada Alur Ketapang - Gilimanuk. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pelabuhan Ketapang dan Gilimanuk merupakan simpul transportasi laut vital yang menghubungkan Pulau Jawa dan Bali dengan intensitas pelayaran tinggi. Dalam mendukung keselamatan pelayaran di koridor ini, pemahaman terhadap dinamika oseanografi seperti arus dan gelombang sangat krusial, mengingat kondisi hidrodinamika di Selat Bali dipengaruhi oleh musim, pasang surut, dan morfologi dasar laut. Penelitian ini bertujuan untuk menganalisis karakteristik arus dan gelombang serta mengevaluasi pengaruhnya terhadap keselamatan pelayaran kapal feri, berdasarkan simulasi numerik menggunakan perangkat lunak MIKE 21 pada 16 titik observasi. Hasil simulasi menunjukkan bahwa pada musim timur, arus cenderung lebih kuat, dengan kecepatan maksimum lebih dari 1,12 m/s di beberapa titik, sementara pada musim barat arus lebih tenang (kurang dari 0,56 m/s). Tinggi gelombang signifikan (Hs) maksimum pada kedua musim berada di bawah 1,25 meter, sehingga secara umum aman untuk pelayaran kapal feri berdasarkan standar Badan Meteorologi Klimatologi dan Geofisika (BMKG). Namun, untuk aktivitas sandar, beberapa titik mendekati batas kritis 0,5 meter berdasarkan standar Technical Standard of Port and Harbour Facilities in Japan (TSPHFJ). Analisis temporal juga menunjukkan bahwa waktu paling aman untuk operasi pelayaran adalah ±2 jam dari puncak pasang dan surut, ketika arus lemah. Berdasarkan hasil validasi model, nilai RMSE dan MAE yang rendah menunjukkan simulasi cukup representatif. Penelitian ini merekomendasikan strategi pelayaran melawan arah arus dominan serta penentuan waktu operasi berdasarkan dinamika pasang surut guna meningkatkan keselamatan pelayaran lintas Ketapang–Gilimanuk.
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Ketapang and Gilimanuk Ports serve as vital maritime transport nodes connecting Java and Bali Islands, with high-intensity ferry traffic. To ensure safe navigation along this corridor, a comprehensive understanding of oceanographic dynamics—particularly currents and waves—is essential, given that the hydrodynamic conditions in the Bali Strait are influenced by seasonal changes, tidal forces, and seabed topography. This study aims to analyze current and wave characteristics and assess their impact on ferry navigation safety through numerical simulations using the MIKE 21 model across 16 observation points. The simulation results indicate that during the eastern monsoon, currents tend to be stronger, with peak velocities exceeding 1,12 m/s at several locations, while the western monsoon season features weaker currents, generally below 0,56 m/s. The maximum significant wave height (Hs) in both seasons remains below 1,25 meters, which is considered safe for ferry operations according to Badan Meteorologi Klimatologi dan Geofisika (BMKG) standards. However, during docking operations, several points approach or exceed the critical threshold of 0,5 meters based on the Technical Standard of Port and Harbour Facilities in Japan (TSPHFJ) standards. Temporal analysis reveals that the safest operational windows occur within ±2 hours of high or low tide peaks, when currents are at their weakest. Model validation using RMSE and MAE yielded low error values, indicating good agreement with real-world conditions. This study recommends sailing against the dominant current direction and optimizing operational timing based on tidal dynamics to enhance ferry navigation safety across the Ketapang–Gilimanuk route.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Pemodelan Hidrodinamika, Mike 21, Keselamatan Pelayaran, Arus, Gelombang, Hydrodynamic Modelling, Mike 21, Safety Navigation, Current, Wave.
Subjects:	Q Science V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM293 Shipping--Indonesia--Safety measures
Divisions:	Faculty of Civil Engineering and Planning > Geomatics Engineering > 29202-(S1) Undergraduate Thesis
Depositing User:	Syahrindra Rif'at Nugraha
Date Deposited:	25 Jul 2025 04:52
Last Modified:	25 Jul 2025 04:52
URI:	http://repository.its.ac.id/id/eprint/121751

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