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All Journal Journal of Civil Engineering and Vocational Education
Arlius, Apriwandi
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Civil Engineering, Building, Construction & Architecture Education Engineering Environmental Science Transportation

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Evaluation of the Level of Vulnerability of Flood Disaster Prone Areas in the Batang Gasan River Basin using the Weighted Product (WP) Method Arlius, Apriwandi; Frinaldi, Aldri; Rembrandt, Rembrandt; Lanin, Dasman; Umar, Genius
CIVED Vol. 11 No. 3 (2024): September 2024
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v11i3.597

Abstract

Indonesia is an area that is prone to hydro-meteorological natural disasters such as floods, landslidesand so on. In Indonesia, especially West Sumatra, the cause of flooding is dominated by high rainfall, as is the case in the Gasan Gadang watershed. In an effort to overcome problems resultingfromflooding, there are several ways, one of which is knowing the causes of flooding and the target areafor flooding, which depends on the characteristics, hydrology and physical conditions of the area. Themain objective of this study is to determine the level of vulnerability to flood disasters and tomapflood-prone areas in the Batang Gasan watershed area to obtain the level of vulnerability andverifyflood-prone areas with measurement results. This research uses several stages of analysis, namelyweighted product (WP) analysis and dynamic analysis. The research results show that areas that havea high level of flood vulnerability are IV Koto Aur Malintang sub-district and Batang Gasansub- district. The area that is vulnerable to moderate-scale flooding is Tanjung Mutiara District. Andthearea that has a low scale flood vulnerability is Sei Geringging District. For areas that are pronetohigh-scale flooding, using the Dynamic Analysis method, the area area can be reduced over the next two year period. And in the 10th (tenth) year the flood area can be reduced by 85.88%. Efforts madeto reduce the area of the flood area are by installing check dams and dredging sediment along the river for District IV Koto Aur Malintang and Batang Gasan District.
Co-Authors Aldri Frinaldi Dasman Lanin Rembrandt, Rembrandt Umar, Genius