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      Deteksi Perubahan Garis Pantai Menggunakan Citra Satelit Landsat di Pesisir Kota Padang

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      Date
      2021
      Author
      Etsoni, Chiko Genta
      Siregar, Vincentius Paulinus
      Gaol, Jonson Lumban
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      Abstract
      Garis pantai selalu mengalami perubahan yang diakibatkan oleh faktor alam maupun non alam. Perubahan garis pantai perlu dipantau untuk mencegah hal-hal yang tidak diinginkan. Teknologi pengindraan jauh citra satelit sudah banyak digunakan dalam pemantauan garis pantai, salah satunya menggunakan Citra Landsat. Tujuan penelitian ini adalah mendeteksi perubahan garis pantai dengan menggunakan citra satelit multi temporal di pesisir Kota Padang dengan metode Digital Shoreline Analysis System (DSAS). Hasil dari Metode DSAS adalah nilai perubahan garis pantai yang mempunyai nilai positif dan negatif. Nilai positif berarti pantai mengalami akresi dan nilai negatif berarti pantai mengalami abrasi. Garis pantai di Padang umumnya mengalami kemunduran akibat proses abrasi. Laju abrasi terbesar terjadi di Desa Air Manis. Sementara itu, proses akresi terbesar yang menyebabkan penambahan garis pantai terjadi di di Desa Purus. Faktor-faktor yang menyebabkan terjadinya abrasi adalah terjangan gelombang dan arus sehingga terjadinya kemunduran garis pantai. Faktor-faktor yang menyebabkan terjadinya akresi adalah reklamasi pantai dan proses sedimentasi oleh aliran sungai.
       
      The coastline always changes due to natural and non-natural factors. Coastline changes need to be monitored to prevent unwanted things. Satellite image remote sensing technology has been widely used in monitoring coastlines, one of them is Landsat imagery. The purpose of this study was to detect coastline changes using multi-temporal satellite imagery on the coast of Padang City using the Digital Shoreline Analysis System (DSAS) method. The result of the DSAS method is the value of the coastline change that has positive and negative values. A positive value means the beach is accretion and a negative value means the beach is abrasion. The coastline in Padang generally had setbacks because of abrasion. The largest pace of abrasion in Air Manis Village. Meanwhile, the largest accretion process affected coastline additions in Purus Village. The factors of abrasion are the lunge of waves and sea waves so the setback coastline happens. The factors of accretion are beach reclamation and sediment process of river flow.
       
      URI
      http://repository.ipb.ac.id/handle/123456789/106877
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      • UT - Marine Science And Technology [2093]

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      Copyright © 2020 Library of IPB University
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      Indonesia DSpace Group 
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