Studi Hidrodinamika Dan Transport Sedimen Di Selat Madura Serta Implikasinya Terhadap Pamurbaya

Rahmat, Muhammad Farhan (2026) Studi Hidrodinamika Dan Transport Sedimen Di Selat Madura Serta Implikasinya Terhadap Pamurbaya. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pengembangan Reklamasi Surabaya Waterfront Land (SWL) di kawasan strategis Selat Madura menghadapi tantangan dinamika pesisir berupa sedimentasi dan erosi yang kompleks. Penelitian ini bertujuan menganalisis kondisi hidrodinamika, transport sedimen, dan perubahan morfodinamika di wilayah tersebut menggunakan metode pemodelan numerik dan pendekatan sediment budget tahunan. Hasil simulasi menunjukkan bahwa hidrodinamika di Selat Madura didominasi oleh arus pasang surut dengan karakter flood dominant, ditandai oleh asimetri arus yang muncul 4 jam lebih awal dari puncak elevasi. Meskipun gelombang relatif rendah (Hsig < 0,5 m), interaksinya dengan arus memicu resuspensi sedimen yang kemudian terakumulasi di area dengan energi lemah. Pola morfodinamika memperlihatkan erosi di area penyempitan selat akibat percepatan arus, khususnya pada cell C dan D1 dengan defisit sedimen masing-masing sebesar 570.785 m3/tahun dan 184.141 m3/tahun. Sebaliknya, kawasan Pamurbaya teridentifikasi sebagai zona akumulasi utama akibat konvergensi dan pelemahan arus. Analisis sediment budget mencatat surplus sedimen signifikan pada cell E2 (114.008 m3/tahun), E3 (51.566 m3/tahun), dan E4 (85.363 m3/tahun). Temuan tersebut memberikan implikasi penting bagi rencana pengembangan kawasan SWL, terutama pada area dengan akumulasi sedimen terbesar (E2, E3, dan E4) yang memerlukan manajemen sedimentasi terpadu demi menjaga stabilitas morfologi kawasan dalam jangka panjang.
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The reclamation based development of the Surabaya Waterfront Land (SWL) in the strategic waters of the Madura Strait is influenced by complex coastal dynamics involving both sedimentation and erosion. This study aims to assess the prevailing hydrodynamics, sediment transport processes, and the resulting morphodynamic evolution within the area by employing numerical modeling and an annual sediment budget approach. The simulation results indicate that the hydrodynamic regime of the Madura Strait is predominantly tide-driven, exhibiting a flood-dominant character marked by current asymmetry that precedes the peak tidal elevation by approximately 4 hours. Although wave energy in the region is relatively low (Hsig < 0,5 m), wave–current interactions contribute to sediment resuspension, followed by deposition within zones of reduced flow energy. The morphodynamic analysis reveals localized erosion within the constricted sections of the strait, primarily driven by current acceleration, with sediment deficits recorded in cell C and D1 of 570.785 m3/years and 184.141 m3/years, respectively. Conversely, the Pamurbaya sector functions as a major deposition zone as a result of flow convergence and current attenuation. The sediment budget assessment identifies substantial sediment surpluses in cell E2 (114.008 m3/years), E3 (51.566 m3/years), and E4 (85.363 m3/years). These findings provide essential insights into the morphodynamic tendencies of the SWL coastal system, highlighting the need for integrated sediment management strategies, particularly within the high accumulation zones (E2, E3, and E4), to maintain longterm morphological stability.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Transport Sedimen, Sediment Budget, Hidrodinamika, Morfodinamika, Selat Madura, Sediment Transport, Sediment Budget, Hydrodynamic, Morphodynamic, Madura Strait
Subjects:	Q Science > QE Geology > QE571 Sedimentation and deposition. Sediment transport. Erosion.
Divisions:	Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38101-(S2) Master Thesis
Depositing User:	Muhammad Farhan Rahmat
Date Deposited:	31 Jan 2026 07:23
Last Modified:	31 Jan 2026 07:23
URI:	http://repository.its.ac.id/id/eprint/131544

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