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All Journal Jurnal Ilmiah Merpati (Menara Penelitian Akademika Teknologi Informasi) Journal of Marine and Aquatic Sciences Buletin Udayana Mengabdi Ecotrophic, Journal of Environmental Science ILMU KELAUTAN: Indonesian Journal of Marine Sciences Jurnal Kelautan : Indonesian Journal of Marine Science and Technology Scientific Journal of Informatics Journal of Marine Research and Technology INTERNATIONAL JOURNAL OF ENVIRONMENT AND GEOSCIENCES Ulil Albab
I Dewa Nym. Nurweda P.,
Program Studi Ilmu Kelautan, Fakultas Kelautan Dan Perikanan, Universitas Udayana Kampus Unud Jimbaran, Badung, Bali, Indonesia
Religion Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science Social Sciences

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Journal : Ecotrophic, Journal of Environmental Science

 1 
STUDY OF OCEAN CIRCULATION IN INDONESIAN ARCHIPELAGO SEA USING THREE DIMENSIONAL OCEAN MODEL I Dewa Nym. Nurweda P.,; Takahiro Osawa; I Wayan Arthana
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 4 No 2
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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Abstract

The Regional Ocean Modeling System (ROMS) was used to simulate the Indonesian Archipelago Sea current and temperature with two different vertical mixing schemes. One corresponds to the newly developed K-Profile Parameterization (KPP) scheme and the other is adapted from the stability frequency of Brunt-Vaisala Frequency mixing (BVF). It is found that, both of schemes produce reasonably realistic sea surface temperature (SST); however, the root mean square error (RMSE) values from the BVF vertical mixing were less than the KPP vertical mixing. The RMSE values from the BVF vertical mixing at northwest and southeast monsoons can be reduced down to 5.1607E-01 0C and 5.7639E-01 0C respectively. These validation results reveal that accuracy of the BVF vertical mixing is better than the KPP vertical mixing.The model results based on the BVF vertical mixing scheme show that the direction of Java Sea, Karimata and Sunda Straits surface current are strongly affected by the zonal wind system. The direction of surface current was change following the monsoonal wind system. On the other hand, the Makasar Strait surface current tend to flow southward throughout the year with annual variations in transport are related dynamically to the monsoon winds. These southward surface currents are known as Indonesian Through Flow (ITF) and it is governed by strong pressure gradient from the Pacific to the Indian Oceans. The signals of El Nino 2002 event also can be detected by the model results. It recognized that the strong Equatorial Counter Current flows to eastward to the central part of the Pacific Ocean. The Makasar Strait surface current was stronger than usual but the Karimata Strait surface current was weaker during this period.
Co-Authors A. A. Md. Ananda Putra Suardana Alanis Ismi Akasia Anak Agung Kompiang Oka Sudana Ayu Wirdiani Brasika, Ida Bagus Mandhara Dewa Ayu Mira Prabaswari Diah Pertami Dzaki Adilla Razaan Dzaki Adilla Razaan Elok Faiqoh Eloq Faiqoh Elvita Rahmani G M Arya Sasmita Gede Surya Indrawan Gede Surya Indrawan Gede Yuda Kamajaya Hendra Yoga Pratama Herlambang Aulia Rachman I Dewa Gede Alit Sujana I Gede Hendrawan I Gusti Bagus Sila Dharma I Gusti Ngurah Putra Dirgayusa I Gusti Putu Ary Wedangga I Gusti Putu Bayu Arri Putra I Kade Alfian Kusuma Wirayuda I Kadek Vidyananda S Rahadiarta I Ketut Adi Purnawan I Komang Agus Parnata I Made Putra Kresnabayu I Made Satya Prayoga I Nyoman Januarta Triska Putra I Putu Agung Bayupati I Putu Yogi Darmendra I Wayan Arthana I Wayan Gede Astawa Karang I Wayan Nuarsa I Wayan Nuarsa Ida Bagus Andika Putra Ida Bagus Kade Putra Susila IGA Ayu Mirah Indraiswari Kadek Ayun Wardimas Karina Santoso Kholifatul Aziz Komang Gede Kurniadi Kuncoro Teguh Setiawan Luh Putu Puspita Dewanti Made Pande Darmawan Mark Johannes Wiggers Ngurah Padang Adnyana Ni Kadek Ayu Dwi Lestari Ni Luh Eta Yuspita Ni Luh Putu Ria Puspitha Ni Made Pitria Menala Saputri Ni Putu Ayu Aryanti Ni Wayan Ayu Astini Sari Ni Wayan Sintaningsih Nur Asni Puspita Sari Pande Komang Egar Prihandana Priscilla Princessa Amalo Putra, I Nyoman Giri Putu Hernanda Krishna Ariszandy Putu Natalia Sarasvati Putu Wira Buana Ramadhani Ahmad Rowand Danny Sebastian Adinegoro Septi Novita Sari Suprapto, Nyoman Arto Syifa’ul Qolbiyatun Nisa Takahiro Osawa Takahiro Osawa Tania Maria Octarina Taradhita, Dewa Ayu Nadia Valenthio Sidauruk Veranita Lamrotua Sihombing Widiastuti Karim Widiastuti Karim Widiastuti Widiastuti Widiastuti Widiastuti Yasa, Putu Kumara Yulianto Suteja