Determination of Landslide Distribution and Characteristics in the Upper Ceyhan Basin

Mehmet Emin Cihangir

Makale detayları

Determination of Landslide Distribution and Characteristics in the Upper Ceyhan Basin

Yazarlar:

Mehmet Emin Cihangir

Yayıncı:

Cukurova University

Ana Başlıklar:

Coğrafi Bilgi Sistemleri ve Mekansal Veri Modelleme

Dergi:

Çukurova Üniversitesi Mühendislik Fakültesi Dergisi Vol.39 Issue 1, pp.239-250

Belge Tipi:

Makale

Yayın Tarihi:

3/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001314541

pISSN:

2757-9255

Anahtar kelimeler:

Özet:

 The Upper Ceyhan Basin is an area where topographic and lithological transitions are frequent. The aim of the study is to examine in detail the factors that affect the distribution and fundamental characteristics of landslides in the defined area where settlement, tectonic activity, and surface shaping are intensive. This purpose has been defined through high-resolution satellite images for landslide inventory. The accuracy of the inventory has been ensured through field studies. It has been determined that 441 different types of landslides cover 3.6 of the basin in the study area. The majority of landslides are identified as sliding type 70, in addition to falling and flowing type landslides. It has been revealed that the size distribution of landslides ranges widely from 0.0005 km² to 10.1 km². It has been determined that various geological and geomorphological processes are effective in this, and different mechanisms contribute to it. In this regard, topographic factors associated with landslides in the literature and geological factors have been evaluated specifically for the study area by an expert. Accordingly, slope, elevation, relief, and topographic wetness index control landslides at different levels depending on the type of landslide. The paleo-landslides occurred at the sharp relief transition between the mountain and plain. Landslides are concentrated in sandstone-mudstone-limestone units. Despite the presence of small landslides in the fault-proximal zone, the earthquakes on February 6, 2023 caused minor collapses in these boundaries. Landslides exhibit distribution based according to on the characteristics of topographic and geological factors. Finally, we can say that landslides occur as a result of the complex interaction of geological, topographic, and environmental factors. Therefore, the analyses conducted in this study are important in terms of considering landslide susceptibility, hazard, and risk studies for the region.

 The Upper Ceyhan Basin is an area where topographic and lithological transitions are frequent. The aim of the study is to examine in detail the factors that affect the distribution and fundamental characteristics of landslides in the defined area where settlement, tectonic activity, and surface shaping are intensive. This purpose has been defined through high-resolution satellite images for landslide inventory. The accuracy of the inventory has been ensured through field studies. It has been determined that 441 different types of landslides cover 3.6 of the basin in the study area. The majority of landslides are identified as sliding type 70, in addition to falling and flowing type landslides. It has been revealed that the size distribution of landslides ranges widely from 0.0005 km² to 10.1 km². It has been determined that various geological and geomorphological processes are effective in this, and different mechanisms contribute to it. In this regard, topographic factors associated with landslides in the literature and geological factors have been evaluated specifically for the study area by an expert. Accordingly, slope, elevation, relief, and topographic wetness index control landslides at different levels depending on the type of landslide. The paleo-landslides occurred at the sharp relief transition between the mountain and plain. Landslides are concentrated in sandstone-mudstone-limestone units. Despite the presence of small landslides in the fault-proximal zone, the earthquakes on February 6, 2023 caused minor collapses in these boundaries. Landslides exhibit distribution based according to on the characteristics of topographic and geological factors. Finally, we can say that landslides occur as a result of the complex interaction of geological, topographic, and environmental factors. Therefore, the analyses conducted in this study are important in terms of considering landslide susceptibility, hazard, and risk studies for the region.

 The Upper Ceyhan Basin is an area where topographic and lithological transitions are frequent. The aim of the study is to examine in detail the factors that affect the distribution and fundamental characteristics of landslides in the defined area where settlement, tectonic activity, and surface shaping are intensive. This purpose has been defined through high-resolution satellite images for landslide inventory. The accuracy of the inventory has been ensured through field studies. It has been determined that 441 different types of landslides cover 3.6 of the basin in the study area. The majority of landslides are identified as sliding type 70, in addition to falling and flowing type landslides. It has been revealed that the size distribution of landslides ranges widely from 0.0005 km² to 10.1 km². It has been determined that various geological and geomorphological processes are effective in this, and different mechanisms contribute to it. In this regard, topographic factors associated with landslides in the literature and geological factors have been evaluated specifically for the study area by an expert. Accordingly, slope, elevation, relief, and topographic wetness index control landslides at different levels depending on the type of landslide. The paleo-landslides occurred at the sharp relief transition between the mountain and plain. Landslides are concentrated in sandstone-mudstone-limestone units. Despite the presence of small landslides in the fault-proximal zone, the earthquakes on February 6, 2023 caused minor collapses in these boundaries. Landslides exhibit distribution based according to on the characteristics of topographic and geological factors. Finally, we can say that landslides occur as a result of the complex interaction of geological, topographic, and environmental factors. Therefore, the analyses conducted in this study are important in terms of considering landslide susceptibility, hazard, and risk studies for the region.

 Yukarı Ceyhan Havzası topoğrafik ve litolojik geçişlerin sık olduğu bir bölgedir. Çalışmanın amacı yerleşmenin, tektonik aktivitenin ve yüzey şekillenmesinin yoğun olduğu sınırları belirlenen alanda heyelanların dağılımı ve temel karakteristiklerini etkileyen faktörleri detaylı bir şekilde incelemektir. Bu amaçla yüksek çözünürlüklü uydu görüntülerinden heyelan envanteri tanımlanmıştır. Envanterin doğruluğu arazi çalışmaları ile sağlanmıştır. Çalışma alanında 441 farklı tip heyelanın havzanın 3,6sını kapladığı tespit edilmiştir. Heyelanların çoğunun ana tip olarak kayma tipinde olduğu 70, bunun yanı sıra düşme ve akmalarda belirlenmiştir. Heyelanların büyüklük dağılımının 0,0005 km2-10,1 km2 arasında oldukça geniş olduğu ortaya çıkmıştır. Buna çeşitli jeolojik ve jeomorfolojik süreçlerin etkili olduğu ve farklı mekanizmaların rol oynadığı belirlenmiştir. Bu doğrultuda literatürdeki heyelan ile ilişkilendirilen topoğrafik faktörler ve jeolojik faktörler uzman tarafından çalışma sahasına özgü olarak değerlendirilmiştir. Buna göre eğim, yükselti, rölyef ve topoğrafik nemlilik indeksi topoğrafik faktörlerin heyelan tipine göre farklı seviyelerde heyelanı kontrol etmektedir. Paleo heyelanların dağ-ova arasındaki keskin rölyef geçişinde gelişmektedir. Havzada heyelanlar kumtaşı-çamurtaşı-kireçtaşı birimlerinde yoğunlaşmaktadır. Faya yakın zonda küçük heyelanlar bulunmasına rağmen 06 Şubat 2023 depremleri bu sınırlarda küçük düşmelere neden olmuştur. Heyelanlar dağılım topoğrafik ve jeolojik faktörlerin özelliğine göre değişiklik göstermektedir. Sonuç olarak heyelanların jeolojik, topoğrafik ve çevresel karmaşık etkileşimi sonucunda meydana geldiğini söyleyebiliriz. Bu nedenle çalışmaya ait analizler bölge için heyelan duyarlılık, tehlike ve risk çalışmalarında dikkate alınması açısından önemlidir.

Makale detayları

Determination of Landslide Distribution and Characteristics in the Upper Ceyhan Basin

Yazarlar:

Mehmet Emin Cihangir

Yayıncı:

Cukurova University

Ana Başlıklar:

Coğrafi Bilgi Sistemleri ve Mekansal Veri Modelleme

Dergi:

Çukurova Üniversitesi Mühendislik Fakültesi Dergisi Vol.39 Issue 1, pp.239-250

Belge Tipi:

Makale

Yayın Tarihi:

3/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001314541

pISSN:

2757-9255

Landslide distribution

Geomorphological processes

Ceyhan Basin

KahramanmarasHeyelan dağılımı

Jeomorfolojik süreç

Ceyhan havzası

Kahramanmaraş

Sayı

Makale detayları

Yazarlar: Mehmet Emin Cihangir

Yayıncı: Cukurova University

Ana Başlıklar: Coğrafi Bilgi Sistemleri ve Mekansal Veri Modelleme

Dergi: Çukurova Üniversitesi Mühendislik Fakültesi Dergisi Vol.39 Issue 1, pp.239-250

Belge Tipi: Makale

Yayın Tarihi: 3/2024

Belge Dili: Türkçe

Document ID (Org No.): 2001314541

pISSN: 2757-9255

Sayı

Yazarlar:

Mehmet Emin Cihangir

Yayıncı:

Cukurova University

Ana Başlıklar:

Coğrafi Bilgi Sistemleri ve Mekansal Veri Modelleme

Dergi:

Çukurova Üniversitesi Mühendislik Fakültesi Dergisi Vol.39 Issue 1, pp.239-250

Belge Tipi:

Makale

Yayın Tarihi:

3/2024

Belge Dili:

Türkçe

Document ID (Org No.):

2001314541

pISSN:

2757-9255