Rainfall Thresholds and Slope Stability Assessments in Indonesia: Determining Rainfall Thresholds for Landslide Initiation Combined with Slope ... a Case Study in Wadaslintang Watershed

Landsliding is one of the most damaging natural disasters in tropical countries, such as Indonesia, especially on the mountainous and hilly terrain area. The study area, Wadas Lintang Watershed in Wonosobo District, Central Java Province, experiences landslide in yearly basis. Due to landslide, the area has been facing the loss of human lives and damages to properties. The landslide events commonly occur in rainy season, thus the rainfall can be regarded as the main trigger in the area. The condition has been being problematic due to lack of availability of information pertaining correlation between rainfall and persistent landslide events in this area. As respond to the problem, this book provides rainfall thresholds for landslide initiation in the area, combined with assessment of terrain hydrological properties, and modelling of slope stability in the area.