Analysis of Coastline Changes in Palu Bay, Central Sulawesi after the 2018 Tsunami Based on Sentinel 1 Satellite Imagery Using the Digital Shoreline Analysis System (DSAS) Method
نویسندگان
چکیده
The Palu-Donggala earthquake that occurred on September 28, 2018 caused additional disasters in the form of liquefaction and tsunami. tsunami hit coastal area Palu Bay considerable damage, indicating a change coastline. purpose this study was to determine changes coastline Bay, City, Central Sulawesi as result Tsunami. data used are Sentinel 1 satellite imagery before after Tsunami occurred. at each time is obtained from extraction imagery. Analysis shoreline uses quantitative descriptive techniques with help DSAS tool analysis based Net Shoreline Movement (NSM) method which integrated ArcGIS software. results show there has been significant Sulawesi. Coastline occur abrasion accretion conditions, but more dominated by abrasion. highest -167.53m found transect 309 located District Mantikulore, lowest value -0.43m 242 Ulujadi District. Meanwhile, 47.27m 105 West District, 0.56m 68 also magnitude influenced openness wave blows, oval narrow morphology occurrence ground deformation Palu-Koro Fault
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ژورنال
عنوان ژورنال: Jurnal Perikanan dan Kelautan
سال: 2022
ISSN: ['2721-8902', '0853-7607']
DOI: https://doi.org/10.31258/jpk.27.3.304-312