Landslide zonation analysis with statistical weight of evidence approach, Paninggaran and surrounding area

Abstract

The study is being conducted in Paninggaran and the surrounding area in the Pekalongan, Central Java, district of Paninggaran. Nine villages are included in the research locations: Paninggaran, Domiyang, Lomeneng, Sawangan, Krandegan, Tenogo, Tanggeran, Bedagung, and Lambanggelun villages. Paninggaran and the surrounding area also have a landslide-like negative power. The lithology, slope rate, land usage, separation from the stream, height, slope direction, soil type, curvature, and stream density all impact this landslide. The process is WOE (Weight of Evidence). This method determines the parameter that influences landslide occurrence based on the latest data. In the validation, This method will observe the AUC curve (Area Under Curve) to determine the accuracy of the data model. Based on the result, the location was classified into four zonations, Very Low-Vulnerable Zone, Low-Vulnerable Zone, Medium-Vulnerable Zone, and High-Vulnerable Zone.