Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal)
Vol. 7 No. 4 (2026): November (In Press)

Analisis Spasial Zonasi Daerah Rawan Banjir Menggunakan Sistem Informasi Geografis Dikecamatan Tilango

Ronal Tahir (Universitas Negeri Goronntalo)
Sri Maryati (Universitas Negeri Gorontalo)
Asrul (Universitas Negeri Gorontalo)



Article Info

Publish Date
15 Sep 2026

Abstract

Floods are a hydrometeorological disaster that frequently occurs in Tilango Subdistrict, Gorontalo Regency. The topography, which is dominated by low-lying areas, the proximity to Lake Limboto and river flows, as well as changes in land use, increase flood vulnerability in the region. This study aims to analyze the spatial zoning of flood-prone areas in Tilango Subdistrict using a (GIS). This study employs a quantitative descriptive method with a spatial analysis approach using scoring, weighting, and overlay techniques applied to parameters such as rainfall, slope, elevation, river buffers, soil type, and land cover. The data were processed using ArcGIS 10.8 to generate a flood vulnerability map. The results of the analysis show that flood vulnerability in Tilango Subdistrict is divided into three classes: non-vulnerable (21.25 ha), vulnerable (498.03 ha), and highly vulnerable (39.93 ha). The vulnerable class dominates the study area, while Tabumela Village has the highest level of vulnerability. Field validation results show a correlation between the vulnerability zones and the locations of actual flood events. This study concludes that rainfall, slope gradient, elevation, soil type, land cover, and river buffers influence the level of flood vulnerability in Tilango Subdistrict. The research results can be used as a basis for disaster mitigation and regional spatial planning.

Copyrights © 2026






Journal Info

Abbrev

GeoScienceEdu

Publisher

Subject

Agriculture, Biological Sciences & Forestry Chemistry Education Physics

Description

Jurnal Pendidikan, Sains, Geologi dan Geofisika (GeoScienceEd Journal): |e-ISSN: 2723-2913, p-ISSN: 2723-2905| diterbitkan 2 (dua) kali dalam setahun (Peride Juni dan Desember) dan dimulai pada bulan Juni 2020 oleh Program Studi Pendidikan Fisika FKIP Universitas Mataram. Artikel dapat diterima ...