Analisis Perubahan Garis Pantai Menggunakan Digital Shoreline Analysis Sysyem (DSAS) (Studi Kasus : Kecamatan Samboja)

Pujirahayu, Shahrul Hidayatullah (2024) Analisis Perubahan Garis Pantai Menggunakan Digital Shoreline Analysis Sysyem (DSAS) (Studi Kasus : Kecamatan Samboja). Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Perubahan garis pantai dapat disebabkan oleh terjadinya abrasi ,erosi dan akresi. Dimana penyebab utama dari hal tersebut adalah gelombang, angin, dan arus. Gelombang saat bergerak menuju pantai akan mengalami transformasi yang kemudian membangkitkan arus di dekat pantai. Arus yang bergerak di sepanjang garis pantai akan memindahkan sedimen sehingga menyebabkan perubahan garis pantai. Kecamatan Samboja, terletak di Kabupaten Kutai Kartanegara, Kalimantan Timur, mengalami perubahan garis pantai yang signifikan akibat abrasi, dan akresi yang dipengaruhi oleh gelombang, angin, dan arus laut. Proses ini disebabkan oleh beberapa faktor alam seperti tinggi gelombang yang mencapai 1.570 m dan kecepatan arus tertinggi 0.47 m/s. Perubahan garis pantai ini juga dapat disebabkan oleh faktor manusia seperti industri, jalur pelayaran, dan reklamasi . Dengan menggunakan citra satelit, perubahan garis pantai dapat diketahui dengan menggunakan Digital Shoreline Analysis System (DSAS) dan menggunakan beberapa metode seperti SCE, NSM, EPR, dan LRR. Dengan menggunakan metode tersebut pada Digital Shoreline Analysis System (DSAS), menunjukkan variasi perubahan pada garis pantai antara mengalami akresi atau mengalami abrasi selama kurun waktu 20 tahun (2002, 2007, 2012, 2017, dan 2022) di sepanjang pesisir Kecamatan Samboja. Prediksi perubahan garis pantai ke depan mengandalkan formula CERC 1984, dengan kurun waktu prediksi perubahan garis pantai selama 10 tahun ke depan (2022-2032). Validasi hasil perhitungan prediksi garis pantai menggunakan Root Mean Square Error (RMSE) dengan nilai sebesar 5%, menunjukkan perubahan yang signifikan di masa mendatang dan perlu diantisipasi.
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Changes in coastlines can be caused by abrasion, erosion and accretion. Where the main causes of this are waves, wind and currents. When waves move towards the coast, they will undergo a transformation which then generates currents near the coast. Currents moving along the coastline will move sediment, causing changes in the coastline. Samboja District, located in Kutai Kartanegara Regency, East Kalimantan, is experiencing significant coastline changes due to abrasion and accretion influenced by waves, wind and sea currents. This process is caused by several natural factors such as wave height reaching 1,570 m and the highest current speed of 0.47 m/s. Changes in coastlines can also be caused by human factors such as industry, shipping routes, and reclamation. By using satellite imagery, changes in coastlines can be determined using the Digital Shoreline Analysis System (DSAS) and using several methods such as SCE, NSM, EPR, and LRR. Using this method on the Digital Shoreline Analysis System (DSAS), it shows variations in changes in the coastline between experiencing accretion or abrasion over a period of 20 years (2002, 2007, 2012, 2017, and 2022) along the coast of Samboja District. Predictions of future coastline changes rely on the 1984 CERC formula, with a prediction period for coastline changes over the next 10 years (2022-2032). Validation of coastline prediction calculation results using Root Mean Square Error (RMSE) with a value of 5%, indicates significant changes in the future and needs to be anticipated.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Abrasi, Akresi, Perubahan Garis Pantai, Prediksi Garis Pantai, Abrasion, Accretion, Coastline Changes, Coastline Change Predictions
Subjects:	T Technology > TC Hydraulic engineering. Ocean engineering T Technology > TC Hydraulic engineering. Ocean engineering > TC203.5 Coastal engineering
Divisions:	Faculty of Marine Technology (MARTECH) > Ocean Engineering > 38201-(S1) Undergraduate Thesis
Depositing User:	Shahrul Hidayatullah Pujirahayu
Date Deposited:	25 Jul 2024 02:04
Last Modified:	25 Jul 2024 02:04
URI:	http://repository.its.ac.id/id/eprint/108840

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