Landslide-Triggering Factors in Korucak Subbasin, North Anatolian, Turkey
Küçük Resim Yok
Tarih
2015
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
ELSEVIER SCIENCE BV
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Korucak Creek Basin is located within upper course of the Yesilirmak River Basin and southern Middle Karadeniz (Black Sea) section which is known to have the potential of landslide and flood risk. The purpose of identification of landslide-triggering factors is to highlight the regional distribution of potentially unstable slopes and to guide decision makers for regional planning purposes. We assessed morphometric parameters for landslide-triggering factors of Korucak Creek Basin using GIS (Geographical Information System). These parameters are Stream Power Index (SPI) and Compound Topographic Index (CTI). Moreover, slope and elevation values of the basin were classified and superposed over the geologic map. Landslide locations were identified from topographic maps and verified with field observation. The total catchment area of the basin is about 55 km2. More than half of the total basin is covered by metamorphic rock types such as schist, which has high permeability and weakness against erosion and is one of the main causes of the landslides. The results show that the main triggering factors are slope and lithology. Thus, northern and western of the Korucak subbasin are under the highest-risk landslide areas. (C) 2015 The Authors. Published by Elsevier B.V.
Açıklama
1st World Multidisciplinary Earth Sciences Symposium (WMESS) -- SEP 07-11, 2015 -- Prague, CZECH REPUBLIC
Anahtar Kelimeler
landslide, natural hazard, schist, risk evaluation, Tokat
Kaynak
WORLD MULTIDISCIPLINARY EARTH SCIENCES SYMPOSIUM, WMESS 2015
WoS Q Değeri
N/A
Scopus Q Değeri
Cilt
15
