Analisa Perubahan Garis Pantai Dan Alternatif Penanganannya Di Pantai Batu Kora Kabupaten Kepulauan Aru

Ch. Joseph, M F Telussa, Christina Karelau

Abstract


Batu Kora Beach, located in Aru Islands Regency, is one of the beaches with the most obvious damage due to changes in the coastline. There are conditions where the land near the coast turns into cliffs due to erosion. In fact, conditions like this have a negative impact on public facilities owned by the community. This study aims to analyze the height, length, and depth of the breaking waves, the magnitude of the shoreline changes that have occurred, and what alternatives are appropriate for the beach. This research begins with a survey at the research location, a literature study, then measuring the coastline, collecting tidal data, and collecting wind data. From these date, an analysis was carried out to answer the purpose of this study. Based on the results of the date analysis, the height of the breaking wave in the northwest direction (Hb) = 5,621 m, the west direction (Hb) = 4,212 m, the wavelength in the northwest direction (Lb) = 29,725 m, the wavelength in the west direction (Lb) = 21,263 m, and the depth of the breaking waves towards the northwest (db) = 4,272 m, for the west (db) = 3,201 m. The shoreline changes that occurred at Batu Kora Beach in 10 years caused erosion of 2.40 m at the 10th slope. An alternative treatment that can be used is the Breakwater Building


Keywords


Waves; Beach; Alternative

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References


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DOI: https://doi.org/10.51135/manumatav9i1p1-10

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