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Analysis Of Geomorphology Using the Coastal Vulnerability Index Method on the Coast of Prancak Village, Bangkalan Regency, Indonesia Zakariyya, Muhammad Zaiki; Ilham Cahya; Wicaksono, Ashari; Lailiyah, Inayatul
Maritime Park: Journal of Maritime Technology and Society Volume 5, Issue 1, 2026
Publisher : Department of Ocean Engineering, Faculty of Engineering, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62012/mp.vi.48209

Abstract

Coastal areas are highly dynamic environments facing increasing threats from both natural processes and human activities, such as coastal erosion, sea level rise, and land use changes. Prancak Village is one such coastal area vulnerable to geomorphological changes. This study aims to assess coastal vulnerability through geomorphological analysis using the Coastal Vulnerability Index (CVI) method. Data were collected from primary and secondary sources, including satellite imagery, field surveys, digital elevation models (DEMs), and data from relevant agencies. The analyzed parameters comprised coastal morphology, beach slope, shoreline change, wave height, and tidal range. The CVI calculation yielded a value of 6.93, which falls within the 5.8–10.06 range classified as “low vulnerability” (20–40% vulnerability level), indicating that the study site has relatively low susceptibility to the physical factors assessed Although the overall index is low, local physical dynamics still pose risks in certain areas, confirming that geomorphology and coastal ecosystem conditions are more decisive in determining vulnerability than oceanographic parameters such as wave height.
Implementation of the Least Square Method in Tidal Harmonic Analysis Using Python Programming rahmadania, Suci Fitra; Cahya, Ilham; Wicaksono, Ashari; Lailiyah, Inayatul
Maritime Park: Journal of Maritime Technology and Society Volume 5, Issue 1, 2026
Publisher : Department of Ocean Engineering, Faculty of Engineering, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62012/mp.vi.48211

Abstract

This study aims to analyze the tidal characteristics in the southern coastal area of ​​Madura using the least squares-based harmonic analysis method with Python programming. This method is used to obtain tidal harmonic constants and determine the tidal type in the study area. The analysis results show that the M₂ component is the dominant component with an amplitude of 0.498 m, followed by the K₁, O₁, and S₂. The Formzahl value of 1.056 indicates that the tidal type in the southern coastal area of ​​Madura is a mixed tide tending to be semidiurnal. Model validation using the Root Mean Square Error (RMSE) produced a value of 0.201 m, indicating that the modeling results have a fairly good level of accuracy. The results of this study are expected to be a reference in the planning and management of coastal areas in Madura waters.