Geologic Hazard Assessment of Slopeland Villages Using Remote Sensing Techniques

Abstract

This study focuses on 53 villages located in the slopelands of Pingtung County. Remote sensing image interpretation techniques are used to identify geologic hazard areas. GIS map overlay analysis of environmental geologic maps, landslide susceptibility maps and potential debris flow torrent maps provided by local and regional governments are used to further interpret and correctly identify the extent of the geologic hazard zone. This study successfully combines both GIS and GPS techniques, and according to data analysis results, constructs a slopeland village geologic hazard assessment method.

Landslide Factors and Susceptibility Mapping on Natural and Artificial Slopes in Kundasang, Sabah

“…This level of accuracy which is almost similar to other studies (Chalkias et al 2014;Guzetti et al 2006) indicate that both maps can be used as preliminary maps to designate areas with high potential for landslides to occur. Once the landslide susceptibility data has been assessed, the data set can be expanded and this result can be used as a future disaster prevention reference (Yang & Yeh 2015).…”

Representing Landslides as Polygon (Areal) or Points? How Different Data Types Influence the Accuracy of Landslide Susceptibility Maps

“…Often, discussions on landslide analysis focus more on the material behaviours of slope, type of models (e.g. statistic, heuristic and deterministic) and the benefits of using GIS for landslide studies (Budetta et al 2008;Gahgah et al 2009;Goh et al 2014Goh et al , 2011Jaiswal et al 2010;JTC-1 2008;Komac 2006;Lin et al 2010;Matthew et al 2007;Melchiorre et al 2008;Poudyal et al 2010;Rafek et al 2012;Yalcin 2008;Yang & Yeh 2015). Each model has its own approach and therefore, it is difficult to compare the extent to which model differences affect success.…”