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Safety Assessment of Ocean Current in Pantar Strait for Marine Tourism

1Department of Marine Science, Faculty of Mathematic and Natural Science, Universitas Sriwijaya, Indonesia

2Study Program of Civil Engineering, Faculty of Engineering, Universitas 17 Agustus 1945 Surabaya, Indonesia

3Department of Oceanography, Faculty of Fisheries and Marine Sciences, Universitas Diponegoro, Indonesia

4 The Naval Hydro-Oceanography Center, Indonesia

5 Department of Chemical Engineering, Politeknik Negeri Sriwijaya, Indonesia

6 Graduate School of Engineering and Science, University of the Ryukyus, Japan

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Received: 14 Apr 2024; Revised: 2 Aug 2024; Accepted: 7 Aug 2024; Available online: 2 Dec 2024; Published: 11 Dec 2024.

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Abstract

The Pantar Strait with its coral reef ecosystem has encouraged many tourists to dive since the last decade. At least, ten coral reef ecosystem sites in Pantar Strait have been indicated as having potential for marine tourism, such as Munaseli Beach, Obisinga Beach, Umangdang Beach, Alor Eco Dive Resort, Ternate Island, Bakalang Beach, Pura Diving Spot, Nuhakepa Diving Spot, Pasir Putih Beach, and Savu Alor. This study illustrated the annual dynamics of ocean currents in Pantar Strait, subsequently assessing the safety rate of commercial diving at those tourism sites in each season. A three-dimensional hydrodynamic model was generated by the Delft3d flow module to illustrate the annual ocean current dynamic in the Pantar Strait. The safety assessment for marine tourism was classified into 3 levels (safe, alert, and dangerous). Ocean currents exceed maximum velocities in the west season. Various marine tourism sites close to steep slopes were not recommended for commercial diving. They are Munaseli Beach, Obisinga Beach, Pura Diving Spot, and Pasir Putih Beach. These sites experienced an increase in average currents that exceeded the safe threshold each season. Alor Eco Dive Resort was designated as the safest marine tourism, which showed a safe level for either average or maximum ocean currents in each season. Nuhakepa Diving Spot was designated as the second safest marine tourism. Several tourist sites that showed the danger of commercial diving in the west season were Umangdang Beach and Savu Alor. Many tourism sites showed an alert current for commercial diving in Springtide. Therefore, tourists are advised to avoid diving during the spring tide.

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Keywords: Pantar Strait; Marine Tourist; Commercial Diving; Ocean Current; Safety Assessment

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