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I Made Rastika Yasa
Program Studi Teknologi Rekayasa Penginderaan Jauh, Universitas Pendidikan Ganesha

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Hubungan Curah Hujan Bulanan dengan Risiko Bencana Longsor di Kecamatan Baturiti, Kabupaten Tabanan I Made Rastika Yasa; Wayan Damar Windu Kurniawan; I Gede Yudi Wisnawa
Jurnal ENMAP (Environment and Mapping) Vol. 7 No. 1 (2026): Maret 2026, Jurnal ENMAP
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/enmap.v7i1.122600

Abstract

This study aimed to determine the relationship between monthly rainfall and landslide risk in 2025 in Baturiti District, Tabanan Regency, Bali. Baturiti District is a mountainous area with hilly terrain and steep slopes, making it vulnerable to landslides. This study used a quantitative method with descriptive and correlational approaches. The data used were monthly rainfall data for 2025 obtained from the Climate Hazards Group InfraRed Precipitation with Station data and landslide hazard index data obtained from the Regional Regulation on Disaster-Prone Areas of Tabanan Regency. The relationship between the two variables was analyzed using Pearson correlation, while spatial analysis was conducted using a Geographic Information System. The results showed that the highest rainfall occurred in January, November, and December, with an average of more than 400 mm per month, while the lowest rainfall occurred from June to August. The Pearson correlation analysis indicated that the relationship between monthly rainfall and landslide risk was generally very weak to weak. The strongest correlation occurred in August with a value of -0.482, which was categorized as moderate with a negative direction. These results showed that rainfall was not the only factor influencing landslide risk. Other factors, such as slope gradient, soil type, land use, and geology, also had an influence. The results of this study are expected to serve as a basis for landslide risk reduction and regional planning in Baturiti District.