Deteksi Perubahan Garis Pantai Menggunakan Citra Landsat di Pesisir Sumur, Pandeglang, Banten.
Date
2021-08-15Author
Setya Budi, Pandu
Paulus Siregar, Vincentius
Nurjaya, I Wayan
Metadata
Show full item recordAbstract
Pesisir merupakan kawasan peralihan antara darat dan laut sehingga sangat potensial sebagai lokasi pembangunan dan cenderung mendapat tekanan yang berat sehingga rawan terhadap perubahan. Penginderaan jauh efisien dan efektif dalam pemantauan perubahan garis pantai. Penelitian ini dilakukan di pesisir Sumur, Pandeglang, Banten. Metode Digital Shoreline Analysis System (DSAS) digunakan untuk menghitung statistik laju perubahan garis pantai. Program DSAS membutuhkan beberapa parameter dalam pengukuran laju perubahan garis pantai seperti baseline, shoreline yang sudah terkoreksi pasang surut, dan transek. Perubahan garis pantai dihitung pada transek dengan perhitungan Net Shoreline Movement (NSM) dan End Point Rate (EPR). Abrasi terjadi pada subzona A2, A3, B3, C3, D1, D2, dan D3.Wilayah yang mengalami akresi meliputi subzona A1, A2, A3, B1, B2, dan B3. Perubahan garis pantai berupa abrasi terbesar terjadi di sub zona D1 dengan nilai -77 m. Nilai perubahan berupa akresi terbesar terjadi pada sub zona A3 yaitu sebesar 61,11 m. Perubahan yang terjadi disebabkan adanya arus menyusur pantai yang dipengaruhi oleh angin. Perubahan garis pantai yang terjadi bersifat ringan hingga sedang. Coastal area is a transitional area between land and sea which is very
potential to be developed and tends to be under heavy pressure, thus it is
vulnerable to change. Remote sensing is an efficient and effective tools in
monitoring shoreline changes. This research was conducted on the coast of
Sumur, Pandeglang, Banten. The Digital Shoreline Analysis System (DSAS)
method was used to calculate the rate of change of the time series of shoreline
vector data. The DSAS program requires several parameters in measuring the
rate of shoreline change in this study, such as the baseline, tide-corrected
shoreline, and transects. Shoreline changes were calculated on the transect
by calculating the Net Shoreline Movement (NSM) and End Point Rate
(EPR). Abrasion was occurred in subzones A2, A3, B3, C3, D1, D2, and D3.
Accretion was occurred in subzones A1, A2, A3, B1, B2, and B3. Larges
abrasion in shoreline was occurred in sub zone D1 with a value of -77 m. The
larges accretion occurred in the A3 sub zone, which was 61.11 m. The
changes are caused by the current along the coast which is influenced by the
wind. Changes in the coastline that occur are mild to moderate.