Pemetaan Potensi Kerawanan Banjir Rob di Kabupaten Gianyar

GIS; Remote Sensing; Tidal flood

  • I Kade Alfian Kusuma Wirayuda Program Studi Ilmu Kelautan, Fakultas Kelautan dan Perikanan, Universitas Udayana, Bali
  • I Wayan Nuarsa Program Studi Ilmu Kelautan, Fakultas Kelautan dan Perikanan, Universitas Udayana, Bali, Indonesia
  • I Dewa Nyoman Nurweda Putra Program Studi Ilmu Kelautan, Fakultas Kelautan dan Perikanan, Universitas Udayana, Bali, Indonesia

Abstract

Tidal flood is a water inundation phenomenon happened on the coast of the mainland or the coast which is caused by the tides of the sea. Tidal flood causes inundation on the certain parts of the mainland due to land altitude is lower than sea level at high tides. Some beaches around Gianyar, Bali, potentially experience a tidal flood. There is no research about tidal flood in Gianyar regency yet gives impact to the information about areas that potentially experience a tidal flood. This study aimed to determine the distribution of flood-prone areas in Gianyar Regency. Remote sensing and other spatial data by using scoring methods were utilized to determine prone areas of tidal flood. The parameters used included land elevation, distance area from shoreline, distance area from river, slope, land cover, and soil types. Result of the study shows that the 1104 ha of the total research area 66,37 ha or 6,02% are vulnerable areas, 684,51 ha or 62,00% are quite vulnerable area, and 353,12 ha or 31,98% are classified as non-prone areas. Spatial distribution of tidal flood potential in Gianyar Regency includes Rangkan Beach, around Purnama Beach, Saba Beach, Keramas Beach, Pering Beach, Lebih Beach and the west side of Siyut Beach . Observations and interviews toward vulnerable areas were conducted as the validation of the result of the study.

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Published
2020-08-31
How to Cite
WIRAYUDA, I Kade Alfian Kusuma; NUARSA, I Wayan; NURWEDA PUTRA, I Dewa Nyoman. Pemetaan Potensi Kerawanan Banjir Rob di Kabupaten Gianyar. Journal of Marine Research and Technology, [S.l.], v. 3, n. 2, p. 94-101, aug. 2020. ISSN 2621-0096. Available at: <https://ojs.unud.ac.id/index.php/JMRT/article/view/60512>. Date accessed: 20 oct. 2020. doi: https://doi.org/10.24843/JMRT.2020.v03.i02.p06.
Section
Articles