Indonesian Journal of Geography
Vol 54, No 3 (2022): Indonesian Journal of Geography

Flood Risk Mapping Using GIS and Multi-Criteria Analysis at Nanga Pinoh West Kalimantan Area

Ajun Purwanto (Departmen of Geography Education IKIP PGRI Pontianak)
Rustam Rustam (Departmen of Counseling Guidance Education IKIP PGRI Pontianak)
Dony Andrasmoro (Departmen of Geography Education IKIP PGRI Pontianak)
Eviliyanto Eviliyanto (Departmen of Geography Education IKIP PGRI Pontianak)



Article Info

Publish Date
20 Dec 2022

Abstract

Flood is one of the disasters that often hit various regions in Indonesia, specifically in West Kalimantan. The floods in Nanga Pinoh District, Melawi Regency, submerged 18 villages and thousands of houses. Therefore, this study aimed to map flood risk areas in Nanga Pinoh and their environmental impact. Secondary data on the slope, total rainfall, flow density, soil type, and land cover analyzed with the multi-criteria GIS analysis were used. The results showed that the location had low, medium, and high risks. It was found that areas with high, prone, medium, and low risk class are 1,515.95 ha, 30,194.92 ha, 21,953.80 ha, and 3.14 ha, respectively. These findings implied that the GIS approach and multi-criteria analysis are effective tools for flood risk maps and helpful in anticipating greater losses and mitigating the disasters.

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Journal Info

Abbrev

ijg

Publisher

Subject

Earth & Planetary Sciences

Description

Indonesian Journal of Geography ISSN 2354-9114 (online), ISSN 0024-9521 (print) is an international journal of Geography published by the Faculty of Geography, Universitas Gadjah Mada in collaboration with The Indonesian Geographers Association. Our scope of publications includes physical geography, ...