Spatio-temporal analysis of abrasion susceptibility effect on land cover in the coastal area of Bantul regency, Yogyakarta, Indonesia

Pratama, D.N.D. and Khakhim, N. and Wicaksono, A. and Musthofa, A. and Lazuardi, W. (2021) Spatio-temporal analysis of abrasion susceptibility effect on land cover in the coastal area of Bantul regency, Yogyakarta, Indonesia. International Journal of Geoinformatics, 17 (4). 109 – 126. ISSN 16866576

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Abstract

Shoreline dynamics naturally occur in coastal areas, and over time, are also influenced by anthropogenic processes taking place both on-site and upstream. Bordering the Indian Ocean, the coastal area of Bantul Regency in the Special Region of Yogyakarta is faced with typical strong and high waves that induce changes in its shoreline dynamics and activities. Consequently, tourism, a leading economic sector in the area, often needs to adjust to such changes. Here, shorelines were extracted from the spatial data of time-series Sentinel 2A imagery (2015, 2016, 2017, 2018, 2019, and 2020) using water index transformation, MNDWI, while the land cover changes were analyzed using the Decision Tree classification. Based on the results, accretion appeared most significant from 2016 to 2017, creating an additional 22.32 ha. In contrast, shoreline change from 2019 until 2020 indicated the most severe abrasion that led to a loss of 34.89 ha. The highest rate of landward shoreline change was 41.58 m/year. © 2021, Association for Geoinformation Technology. All rights reserved.

Item Type: Article
Additional Information: Cited by: 2
Uncontrolled Keywords: Bantul; Indian Ocean; Indonesia; Yogyakarta; abrasion; anthropogenic effect; coastal evolution; coastal zone; geomorphological response; image classification; satellite imagery; Sentinel; shoreline change; spatiotemporal analysis
Subjects: G Geography. Anthropology. Recreation > G Geography (General)
Divisions: Faculty of Geography > Departemen Sains Informasi Geografi
Depositing User: Sri JUNANDI
Date Deposited: 11 Sep 2024 01:14
Last Modified: 11 Sep 2024 01:14
URI: https://ir.lib.ugm.ac.id/id/eprint/5218

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