Geohazard reconnaissance mapping for a settlement area


Yesiloglu-Gultekin N., Gokceoglu C., Sonmez H.

ENVIRONMENTAL EARTH SCIENCES, vol.66, no.6, pp.1653-1666, 2012 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 66 Issue: 6
  • Publication Date: 2012
  • Doi Number: 10.1007/s12665-011-0984-1
  • Journal Name: ENVIRONMENTAL EARTH SCIENCES
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1653-1666
  • Keywords: Risk and probability analysis, Rockfall, Earth slump, Egirdir (Turkey), MOUNTAINS NW TAURIDS, DEBRIS SOURCE AREAS, LANDSLIDE-SUSCEPTIBILITY, LOGISTIC-REGRESSION, TRANSPORTATION CORRIDOR, ROCKFALL, HAZARD, VALLEY, GIS, SIMULATION
  • Hacettepe University Affiliated: Yes

Abstract

To minimise the losses associated with natural hazards, it is necessary to compile and evaluate earth science data. This study describes and maps the geohazards that may affect the Egirdir (Isparta) settlement area. For these purposes, field studies were performed, and the data obtained were compiled using Geographical Information Systems (GIS). Four different types of earth slump were identified: paleo, small-scale shallow, active and potential earth slump. In addition, two rockfall source areas were identified and mapped. The ratio of the area affected by rockfall to the total area is 2.03%. Although there is no expected risk associated with active earth slump, displacement in the potential earth slump area represents a risk. The risk level calculated is 1.5% for 1 year. Based on all of the data, a geohazard reconnaissance map of the study area was prepared. Based on this map, it can be concluded that 83% of the overall study area has no risk of mass movement.