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Arbi Tri Kuswardhana
1Mahasiswa Program Studi Magiter Teknik Sipil, Jurusan Teknik Sipil, Universitas Jember
Civil Engineering, Building, Construction & Architecture

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PEMETAAN GEOSPASIAL RISIKO BANJIR DI SUB-DAS GUNTING, JOMBANG JAWA TIMUR Arbi Tri Kuswardhana; entin hidayah; Retno Utami Agung Wahyono
Rekayasa Sipil Vol. 17 No. 1 (2023): Rekayasa Sipil Vol. 17 No. 1
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2023.017.01.8

Abstract

Floods are the most recurring natural disasters and impact human life, causing a severe economic downturn. The level of flood risk is a function of hazard and vulnerability. Flood risk-prone areas need to be identified to reduce the flood risk level. This study aims to assess flood risk based on spatial analysis results with Geographic Information Systems (GIS). The flood hazard map is built from remote sensing-based data in the form of a digital elevation model (DEM) applied using the frequency ratio weighting (FR) technique. Vulnerability maps are generated from social, economic, physical, and environmental data applied through techniques overlays weighted using the analytical hierarchy process (AHP). The resulting risk map shows that 21.93% and 6.40% of the total area are at a very high and high level of flood risk. This map is very useful for planning the flood management.
Co-Authors Entin Hidayah Retno Utami Agung Wahyono