Sürdürülebilir Kalkınma Amaçları
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- Yüksek Lisans TeziAçık Erişim2026Çayeli (Rize) ilçesinde jeofizik verilerle bütünleşik heyelan duyarlılığı ve risk haritalarının oluşturulması
Zehra Sürül
Bu çalışmada, Çayeli ilçesinde heyelan duyarlılığının belirlenmesi amacıyla makine öğrenmesi tabanlı bütünleşik bir analiz gerçekleştirilmiştir. Çalışmada topoğrafik, hidrolojik, jeolojik, iklimsel ve sismik/jeoteknik faktörler birlikte değerlendirilmiş; AFAD, MTA, CORINE, OpenStreetMap ve sayısal yükseklik modeli verileri kullanılmıştır. Ayrıca Çayeli Belediyesi’nden temin edilen 55 adet jeolojik-jeoteknik rapor incelenmiş ve jeofizik veriler CBS ortamında modele dahil edilmiştir. Toplam 28 koşullayıcı faktör oluşturulmuş, VIF analizi sonucunda yüksek doğrusal bağlantıya sahip değişkenler çıkarılarak modelleme süreci 22 faktör üzerinden yürütülmüştür. Lojistik Regresyon, Rastgele Orman, XGBoost, LightGBM, SVM ve YSA dahil olmak üzere on farklı makine öğrenmesi algoritması karşılaştırılmıştır. Modeller 5 katlı çapraz doğrulama ve bağımsız test veri seti ile değerlendirilmiştir. Son aşamada SHAP analizi uygulanarak faktörlerin model tahminlerine etkisi yorumlanmıştır. Elde edilen sonuçlar doğrultusunda heyelan duyarlılık haritaları üretilmiş ve çalışma alanındaki mevcut heyelanlarla yüksek mekânsal uyum gösterdiği belirlenmiştir. Çalışma, makine öğrenmesi ve açıklanabilir yapay zekâ yöntemlerinin heyelan duyarlılık analizlerinde etkili sonuçlar sunduğunu ortaya koymuştur.
- MakaleYalnız künye2022Scopus SJRQ1GIS-based determination of potential instabilities and source rock areas on the Torul-Kürtün (Gümüşhane) motorway, rockfall, and protection structure analyses
Alemdag, Selcuk; Bostanci, Hasan Tahsin; Gacener, Elif
The Torul-Kürtün-Tirebolu motorway, one of the alternative routes for access between the Eastern Anatolia Region and the Black Sea Region, has an important traffic potential in this respect. However, rockfall events that occur frequently in almost every season especially in the part of the route between Torul and Kürtün may occasionally cause loss of life and property and lead to disruption in transportation in a much more common way. Departing from this point, the parts of the motorway that pose a greater threat in terms of slope instability and rockfall potential were selected as the study area. Instability maps produced by the kinematic analysis results showed that the probability of toppling type failure in the study area was quite higher, while the general results were as follows: the probability of toppling type failure was found in 204 different locations and approximately 97,900 m2 of area. Taking account of geographic information system (GIS)–based final instability maps, profile lines were determined for potential rockfalls in the instability-intense source rock areas. The profile lines which were determined were analyzed two-dimensionally in the RocFall 7.0 computer program. The rockfall analyses revealed that the rolling rock blocks in the section SP7 shall remain on the surface of the slope, while the rock blocks in other sections shall reach the road route. The application of barrier types determined by barrier sensitivity analysis on profile lines will minimize or completely prevent potential hazards.
AtıfScopus13WoS12OpenAlex17İncele - MakaleYalnız künye2015Scopus SJRQ2Determination to Results of Forest Management Planning Applications with Land Use Changes from 1971 to 2008 in Yalova-Turkey
Çakir, Günay; Özdemir, Mehmet
The forest conservation organizations in Turkey have recommended changing the classical forest management systems to protect forest biodiversity since 2006. This study discusses the spatio-temporal analysis of forest management activities and land use changes in Yalova Forest Ecosystems, Turkey. We focused on the Yalova City because (a) it is located in a highly urbanized area, northwestern Turkey, (b) forest is a governmental ownership and producing of many non-wood forest product and wildlife species, (c) governmental organizations are encouraged to be decreased clear-cuts to protect forest ecosystems; (d) GIS databases are available in Yalova; (e) Yalova Forestry Administration has a membership of the Mediterranean Model Forest Network in 2011, and (f) many new forest policies will be developed in Turkey after the membership of the model forest. This study used forest management plans of Yalova Forest during 1971–2008 periods and analyzed data in geographic information system (GIS). Results showed that the rate of forest area in the Yalova steadily increased from 53.4 % in 1971 to 61.2 % to 62.5 % between 1994 and 2008 respectively.
AtıfScopus2WoS3OpenAlex2İncele
