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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Agromet Journal of Climate Change Society
Yon Sugiarto
Department Of Geophysics And Meteorology, Faculty Of Mathematics And Natural Sciences, IPB University, Dramaga Campus, Bogor, Indonesia 16680
Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemistry Earth & Planetary Sciences Economics, Econometrics & Finance Electrical & Electronics Engineering Environmental Science Physics Social Sciences

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Determining Rainfall Thresholds of Landslide Events for Sumatra Islands Perdinan; Yon Sugiarto; Bambang Dwi Dasanto; Raynaldi Rachmat; Ayu Arista Andarini Putri
Journal of Climate Change Society Vol. 3 No. 2 (2025)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jccs/Vol3-iss2/67

Abstract

Extreme weather can trigger a number of meteorological disasters such as landslides. This disaster may cause serious losses on livelihoods and hamper the growth of economy or development targets. This research focuses on determining a threshold triggering landslide events. Rainfall is considered as one of the common factor contributing to the landslide occurrence. The rainfall intensity as the trigger for landslides can be determined using a series of statistical methods. The threshold determination is performed using statistical techniques composed of Cumulative Rainfall Threshold (CT) and sorting analysis, dummy regression, cluster analysis, and change detection method. The methods are applied to determine the thresholds for landslides occurring in Sumatra Islands for the period of 2010-2017 retrieved from the website Data Informasi Bencana Indonesia managed by Badan Nasional Penanggulangan Bencana (DIBI BNPB). We evaluated daily rainfall data for the period of 2010-2017 compiled for 10 climate stations operated by Bureau Meteorology, Climatology, and Geophysics named in Bahasa Indonesia Badan Meteorologi, Klimatologi, dan Geofisika that are accessible for the Sumatra Island. The analyses suggest that the rainfall thresholds that should be monitored for detecting the potential occurrences of landslides in the study area are 15 mm per day, 30 mm per day, dan 65 mm per day. These values can be seen as warnings at different levels with the largest value, i.e., 65 mm, indicated higher confidence for the landslide event to occur. In other words, these values represent different levels of alert for the landslide occurrence that provide inputs for designing strategies of disaster prevention to mitigate the adverse impacts of landslide disaster.
Co-Authors Aji Irsyam N. Sukarta Alexander Knohl Alexander Knohl Anisa Isnaeni Ariesta Kusuma Wardhani Artika Ayu Arista Andarini Putri Bambang Dwi Dasanto Bambang Sapto P Bregas Budianto Budi Kartiwa Christian Stiegler Christian Stiegler Dori Kurniawan Dwi Adelianingsih Handoko Handoko Nani Heryani P. Perdinan Raynaldi Rachmat Resti Salmayenti Rini Hidayati Tania June Tri Handayani Wahyu Sukmana Dewi Woro Estiningtyas Yonny Koesmaryono Za’immatul Mu’allimah