Karakteristik Natuna Off-Shelf Current (NOC) Berdasarkan Komputasi Data Laut Skala Kecil Berbasis Awan

Characteristics of Natuna Off-Shelf Current (NOC) on Cloud-Based Small-Scale Marine Data Computation

Authors

  • Agung Kurniawan Laboratorium Hidro-Oseanografi, Sekolah Tinggi Teknologi Angkatan Laut (STTAL) Jakarta, Indonesia
  • Widodo Setiyo Pranowo Pusat Riset Iklim dan Atmosfer, Badan Riset dan Inovasi Nasional (BRIN), Bandung, Indonesia https://orcid.org/0000-0002-5798-4181
  • Nurul Khakim Fakultas Geografi, Universitas Gadjah Mada, Yogyakarta, Indonesia
  • Agus Iwan Santoso Pusat Hidro-Oseanografi TNI Angkatan Laut, Jakarta, Indonesia
  • Ezikri Yasra Laboratorium Hidro-Oseanografi, Sekolah Tinggi Teknologi Angkatan Laut (STTAL) Jakarta, Indonesia
  • Kurnia Malik Program Studi Hidrografi, Sekolah Tinggi Teknologi Angkatan Laut (STTAL), Jakarta, Indonesia

DOI:

https://doi.org/10.37875/chartdatum.v9i1.259

Keywords:

Natuna Off-Shelf Current (NOC), Komputasi awan, Google Earth Engine, HYCOM, Arus

Abstract

Morfologi perairan Laut Natuna Utara yang unik menghasilkan arus yang memiliki kecepatan yang signifikan sebagai perpanjangan dari Vietnam Coastal Jest (VCJ) yang disebut sebagai Natuna Off-Shelf Current (NOC). Identifikasi NOC dilakukan untuk melihat pola arus pada setiap musim serta pengaruh fenomena ENSO terhadap pola arus yang dihasilkan. Visualisasi dilakukan menggunakan pendekatan komputasi awan berkecepatan tinggi diproses melalui platform google earth engine (GEE) dengan menggunakan input data dari HYCOM. Artikel ini bertujuan untuk melakukan identifikasi dan visualisasi NOC menggunakan pendekatan data berbasis raster yang diolah menggunakan komputasi awan di GEE. Tahun kajian sebagai periode observasi diantaranya adalah periode La Niña tahun 2022, periode El Niño kuat pada tahun 1997, dan tahun netral pada tahun 1996. Secara visual NOC terbentuk akibat perpanjangan VCJ pada bulan musim barat, dan terlihat di semua tahun kajian observasi. Arus paling signifikan dijumpai pada musim barat tahun 1996 (tahun netral) dengan kecepatan 1,7 m/detik di lapisan permukaan, 1,4 m/detik di kedalaman 50m untuk bulan November 1996 (tahun netral), dan 1,4 m/detik di kedalaman 100m pada November 1997 (periode ENSO) dan Februari 1996 (tahun netral).

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Published

2023-07-27

How to Cite

Kurniawan, A., Pranowo, W. S., Khakim, N., Santoso, A. I., Yasra, E., & Malik, K. (2023). Karakteristik Natuna Off-Shelf Current (NOC) Berdasarkan Komputasi Data Laut Skala Kecil Berbasis Awan: Characteristics of Natuna Off-Shelf Current (NOC) on Cloud-Based Small-Scale Marine Data Computation . Jurnal Chart Datum, 9(1), 61–76. https://doi.org/10.37875/chartdatum.v9i1.259

Issue

Vol. 9 No. 1 (2023): Jurnal Chart Datum

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Artikel

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