GIS based statistical and physical approaches to landslide susceptibility mapping (Sebinkarahisar, Turkey)

Yilmaz I., Keskin I.

BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT, vol.68, no.4, pp.459-471, 2009 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 68 Issue: 4
  • Publication Date: 2009
  • Doi Number: 10.1007/s10064-009-0188-z
  • Journal Name: BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.459-471
  • Keywords: Toe erosion, Sebinkarahisar (Giresun, Turkey), Landslide, Susceptibility map, GIS, Frequency ratio, SINMAP, HAZARD, REGION, MODEL, TOPOGRAPHY, TECTONICS, STABILITY, BASIN, ZONE
  • Sivas Cumhuriyet University Affiliated: Yes

Abstract

The case study presents GIS-aided statistically and physically based landslide susceptibility mapping in the landslide-prone Avutmus district of Sebinkarahisar (Giresun, Turkey). Field investigations, analysis of geological data and laboratory tests suggested that two important factors have acted together to cause sliding: ground water pressures and toe erosion. Frequency ratio (FR) and stability index mapping (SINMAP) were used to create the landslide susceptibility maps based on a landslide inventory; distance from drainage systems, faults and roads; slope angle and aspect; topographic elevation and topographical wetness index; and vegetation cover. Validation of the models indicated high quality susceptibility maps with the more realistic results were obtained from the statistically based FR model.