Karakteristik Pola Arus Laut Di Perairan Selat Sunda Periode Tahun 2013 - 2023

Yuhana, Rofikoh Latif (2025) Karakteristik Pola Arus Laut Di Perairan Selat Sunda Periode Tahun 2013 - 2023. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Selat Sunda merupakan salah satu jalur pelayaran paling strategis di Indonesia dimana terdapat jalur penyeberangan Merak – Bakauheni. Keselamatan dan efisiensi aktivitas pelayaran di Selat Sunda sangat dipengaruhi oleh cuaca diantaranya arus laut, sehingga diperlukan identifikasi karakteristik pola arus laut serta menganalisis hubungan antara arus laut dengan faktor oseanografi seperti angin, gelombang, dan pasang surut. Data yang digunakan meliputi data model arah dan kecepatan arus dari Marine Copernicus selama rentang tahun 2013-2023 yang divalidasi menggunakan data arah dan kecepatan arus dari High Frequency Radar (HF Radar) dengan metode statistik, termasuk Root Mean Square Error (RMSE) dan koefisien korelasi. Visualisasi dan analisis data dilakukan menggunakan perangkat lunak seperti ArcGIS, SPSS, dan Jupyter Notebook. Hasil verifikasi awal antara data model dengan pengamatan diperoleh nilai RMSE = 0,26 m/s mengindikasikan adanya selisih yang relatif kecil dan r = 0,77 menunjukkan hubungan yang kuat antara keduanya, sehingga model dianggap cukup baik digunakan dalam analisis karakteristik arus laut di wilayah studi. Selama musim barat arah arus persisten menuju utara/timur laut, memasuki musim timur arah arus menuju selatan / barat daya dan pada saat musim peralihan arah arus cenderung variabel. Pengaruh pasang surut yang dominan, ditunjukkan oleh anomali permukaan laut atau Sea Level Anomaly (SLA) sebagai prediktor terkuat dalam analisis korelasi (r = -0,328) dan regresi (Beta = -0,308). Hubungan negatif ini sangat informatif, menunjukkan bahwa tingkat air laut yang lebih tinggi terkait dengan kecepatan arus yang lebih rendah.
Kata kunci : arus laut; gelombang; pasang surut; Selat Sunda; validasi data.
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The Sunda Strait is one of the most strategic shipping lanes in Indonesia where the Merak - Bakauheni crossing route is located. The safety and efficiency of shipping activities in the Sunda Strait are greatly influenced by weather, including ocean currents. Therefore, it is necessary to identify the characteristics of ocean current patterns and analyze the relationship between ocean currents and oceanographic factors such as wind, waves, and tides. The data used include current direction and speed model data from Marine Copernicus for the period 2013-2023 which was validated using current direction and speed data from High Frequency Radar (HF Radar) with statistical methods, including Root Mean Square Error (RMSE) and correlation coefficients. Data visualization and analysis were performed using software such as ArcGIS, SPSS, and Jupyter Notebook. Initial verification results between the model data and observations yielded an RMSE value of 0,26 m/s, indicating a relatively small difference, and an r value of 0,77 indicating a strong relationship between the two. Therefore, the model is considered adequate for analyzing ocean current characteristics in the study area. During the west monsoon, the current direction is persistent towards the north/northeast, entering the east monsoon, the current direction is towards the south/southwest, and during the transition season, the current direction tends to be variable. The dominant tidal influence is indicated by the Sea Level Anomaly (SLA) as the strongest predictor in both correlation (r = -0,328) and regression (Beta = -0,308) analyses. This negative relationship is highly informative, indicating that higher sea levels are associated with lower current speeds.
Keywords: ocean currents; waves; tides; Sunda Strait; data validation.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	arus laut; gelombang; pasang surut; Selat Sunda; validasi data. ocean currents; waves; tides; Sunda Strait; data validation.
Subjects:	G Geography. Anthropology. Recreation > GC Oceanography G Geography. Anthropology. Recreation > GC Oceanography > GC89 Sea Level
Divisions:	Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Geomatics Engineering > 29101-(S2) Master Thesis
Depositing User:	Rofikoh Latif Yuhana
Date Deposited:	28 Jan 2026 06:27
Last Modified:	28 Jan 2026 06:27
URI:	http://repository.its.ac.id/id/eprint/130778

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