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Jurnal Komposit : Jurnal Ilmu-Ilmu Teknik Sipil
Published by Universitas Ibn Khaldun Bogor
ISSN : 35132615     EISSN : 2655934X     DOI : -
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture Engineering Transportation
Jurnal Komposit: Jurnal Ilmu-ilmu Teknik Sipil adalah jurnal yang mempublikasikan hasil-hasil penelitian, ulasan ilmiah, teori dan aplikasi serta informasi lain di bidang ilmu pengetahuan, teknologi, dan sains (IPTekS), terutama teknik sipil, lingkungan, dan perencanaan wilayah-kota.Jurnal Komposit terbit dua kali dalam setahun. Jurnal Komposit: Jurnal Ilmu-ilmu Teknik Sipil is a journal that publishes research results, scientific reviews, theory and applications as well as other information in the fields of science, technology and science (IPTekS), especially civil engineering, environment, and urban planning. Jurnal komposit issued biannually. Articles to be published in the Jurnal Komposit: Jurnal Ilmu-ilmu Teknik Sipil are compiled from articles prepared by the author(s) and sent to the editorial board of Jurnal Komposit: Jurnal Ilmu-ilmu Teknik Sipil Departement of Civil Engineering, Faculty of Engineering and Science, Universitas Ibn Khaldun Bogor. Articles should be written in English or Bahasa Indonesia. Research scope in general is civil engineering and environmental engineering study.
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
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Search results for , issue "vol. 10 no. 2 (2026)" : 1 Documents clear
Pemetaan Kerawanan Banjir Berbasis Topografi Menggunakan Metode GIS-AHP di DAS Air Bengkulu Egi Ahmad Fahrezi; Gusta Gunawan; Khairul Amri; Besperi Besperi; Rena Misliniyati
Jurnal Komposit: Jurnal Ilmu-ilmu Teknik Sipil Vol. 10 No. 2 (2026)
Publisher : Universitas Ibn Khaldun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/komposit.v10i2.24064

Abstract

Flooding in the Air Bengkulu Watershed is related to the physical characteristics of the area, particularly the topographic differences between the upstream and downstream regions. Downstream areas with low elevation and gentle slopes tend to have higher potential for surface runoff accumulation. This study aims to map topography-based flood susceptibility using the Geographic Information System and Analytical Hierarchy Process (GIS-AHP) as preliminary information for identifying flood-prone areas in the Air Bengkulu Watershed. The parameters used were elevation and slope, derived from the National Digital Elevation Model (DEMNAS), then reclassified into five susceptibility classes and weighted using AHP. The weighting results showed that elevation had a weight of 0.667, while slope had a weight of 0.333. The integration of both parameters through weighted overlay produced a topography-based flood susceptibility map, with the very high class covering 121.21 km² or 24.27% and the high class covering 104.49 km² or 20.92% of the classified area. Combined, both classes covered 225.70 km² or 45.19% of the classified area, mainly distributed in the downstream to middle parts of the watershed. Spatial validation using verified flood occurrence data showed spatial agreement between documented flood locations and areas identified as flood-prone based on the mapping results. Therefore, this study provides preliminary spatial information to support the identification of priority areas for flood mitigation, particularly in the downstream part of the Air Bengkulu Watershed. However, the resulting map represents an initial topography-based susceptibility assessment, not a complete representation of all flood-causing factors.

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