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All Journal Jurnal Ilmu dan Teknologi Kelautan Tropis IJOG : Indonesian Journal on Geoscience
Park, Hansan
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Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Library & Information Science

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Coral Reef Restoration for Coastal Protection: Water Quality Monitoring in Indonesia Coral Reef Garden Nusa Dua, Bali Burhanuddin, Safri; Badriana, Mochamad Riam; Nur, Ashadi Arifin; Abdurrahman, Umar; Jeon, Chungkyun; Radjawane, Ivonne Milichristi; Park, Hansan; Hutahaean, Andreas Albertino
Indonesian Journal on Geoscience Vol. 11 No. 3 (2024)
Publisher : Geological Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17014/ijog.11.3.455-470

Abstract

The Indonesia Coral Reef Garden (ICRG) is a coral reef restoration program with Nusa Dua as one of five sites in Bali. A plantation program has been done by 2020, but it is necessary to monitor the condition. A field survey in Nusa Dua was carried out on October 3-4, 2022 to measure and check ocean parameters that are suitable for coral life and diving in artificial coral reefs installed. In the survey, several points had been measured through CTD Valeport Midas+ prior to measuring ocean parameters in the same location as a preliminary survey done two years in advance. The sea condition of temperature, salinity, pH, turbidity, and DO is 24.89 - 28.69 °C, 33.75 - 34.22 psu, 8.0 - 8.1, 1.19 - 4.27 FTU, and 4.47 - 5.24 mg/L, respectively. Based on the conformity of water quality, the water condition is good for coral growth. A total of 15 locations are used to put artificial coral reefs in many forms or structures. The coral plantation program in Nusa Dua shows promising progress in qualitatively consisting of species of Montipora sp., Acropora sp., and Alcyonacea sp. A continuous measurement is demanded to monitor the condition of coral growth quantitatively.
Tidal Characteristic Analysis Utilizing Radar Tide Gauge in Cirebon Seawater Badriana, Mochamad Riam; Abdurrahman, Umar; Arifin Nur, Ashadi; Jeon, Chungkyun; Miliachristi Radjawane, Ivonne; Park, Hansan
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 16 No. 1 (2024): Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitkt.v16i1.52987

Abstract

Pengukur pasang surut berbasis radar merupakan salah satu pendekatan dalam mengukur elevasi muka air yang mudah diinstal dan dipelihara. Perekaman data pasang surut yang pernah dilakukan umumnya menggunakan palem pasut atau pressure tide gauge. Pada studi ini radar tide gauge dipasang di pelabuhan Cirebon, bagian utara pulau Jawa, untuk mengetahui karakteristik pasang surut di perairan Cirebon. Data elevasi muka air direkam setiap 15 menit dari bulan Juli 2022 hingga November 2023. Komponen pasang surut dihitung menggunakan metode least square dan tipe pasang surut ditentukan melalui bilangan Formzahl. Komponen dominan pasang surut yang diketahui terdiri dari komponen semidiurnal M2, S2, N2, K2, 2N2; komponen diurnal K1, O1, P1, Q1, K1, J1, TAU1; dan komponen perairan dangkal SSA dengan tinggi secara berurutan sebesar 11.98, 5.58, 2.91, 2.11, 1.45, 11.80, 3.89, 6.11, 2.08, 1.56, dan 3.11 (dalam cm). Tipe pasang surut di area kajian adalah campuran condong semidiurnal. Tunggang pasut di daerah studi setinggi 0.8-1 m dengan kondisi pasang saat pukul 6.00-9.00 dan 18.00 - 21.00, sedangkan kondisi surut pada rentang pukul 11.00 - 14.00 dan 01.00 - 04.00. Perhitungan tinggi elevasi berdasarkan datum dilakukan dengan mengkombinasikan komponen pasang surut. Data pengukuran pasang surut menggunakan radar dapat menjadi data alternatif untuk mendukung dan melengkapi data yang terekam di Cirebon serta dapat menjadi pertimbangan untuk pembangunan dan kegiatan maritim lainnya.
Co-Authors Abdurrahman, Umar Arifin Nur, Ashadi Badriana, Mochamad Riam Hutahaean, Andreas Albertino Jeon, Chungkyun Miliachristi Radjawane, Ivonne Nur, Ashadi Arifin Radjawane, Ivonne Milichristi Safri Burhanuddin