Application of Landsat Imagery for Landslide Hazard Mapping in Gumelar District, Banyumas Regency
Daniel Radityo1, Septyo Uji Pratomo1, Nandra Eko Nugroho2, Arnia Fitri1, Dimas Cahya Wicaksana1, Muhammad Raihan Didi Murdana1

1Geological Engineering Department of UPN Veteran Yogyakarta
2Environmental Engineering Department of UPN Veteran Yogyakarta

Abstract

Landslides are land movements caused by both natural and human-induced factors. Natural factors are influenced by the area^s geological structure, rock type, slope gradient, and rainfall intensity, while human-induced factors are dynamic, such as land use and infrastructure development. Remote sensing techniques using satellite imagery can be applied to map landslide-prone areas. Satellite images are recordings of the earth^s surface of multiple bands with specific wavelengths. These bands are composited to enhance object visibility, simplifying land cover classification. In the case of Gumelar District, Banyumas Regency, the zoning of landslide-prone areas is mapped using a weighting and scoring method. The parameters influencing landslides, including geological structure, rock type, rainfall, slope, infrastructure, and land cover derived from satellite imagery, are weighted and scored. The results indicate that the landslide potential in Gumelar District is predominantly in the moderate to high category. Landslide-prone area mapping is crucial as a mitigation measure to minimize the impact of landslides.

Keywords: landslides, satellite imagery, mapping, Gumelar District, ground movement.

Topic: Engineering