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February 1991 - present
Publications
Publications (114)
The seismic zoning map of Turkey that is used in connection with the national
seismic design code (versions issued both in 1997 and 2007) is based on a probabilistic
seismic hazard assessment study conducted more than 20 years ago (Gu¨lkan et al. in En
son verilere go¨re hazırlanan Tu¨rkiye deprem bo¨lgeleri haritası, Report No: METU/EERC
93-1, 199...
Turkey is located in one of the most seismically active regions in the world. Characterizing seismic source zones in this region requires evaluation and integration of geological, geophysical, seismological and geodetical data. This first seismotectonic database for Turkey presented herein was prepared, under the framework of the National Earthquak...
Heyelanların bölgesel ölçekte etkilerinin anlaşılması ve zararlarının azaltılmasında heyelanların mekansal olabilirliğini gösteren duyarlılık haritaları önemli katkı sağlamaktadır. Heyelan duyarlılık haritalarını oluşturulurken, kütle hareketlerinin karmaşık yapısı ve bu hareketleri kontrol eden faktörler iyi bilinmelidir. Heyelan duyarlılık harita...
The role of geoenvironmental information is becoming increasingly important as legislative changes have forced developers
and planning authorities to consider more implications and impact on the environment of large-scale development initiatives.
Therefore, integration of surface and subsurface geoscientific information for development needs has pr...
Landslides constitute recurrent natural hazards worldwide with greater socioeconomic impacts in low-income places. Landslide susceptibility studies are carried out to determine the potential for landslides to occur in a region, to predict possible risks in the future and to integrate this information into sustainable planning and management strateg...
Northern Turkey has long been severely affected by landslides in addition to large earthquakes and floods. During this study, the first landslide inventory was prepared for an area of 222,000 km², almost one-third of Turkey. Landslide frequency-size statistics were then considered, and the completeness of the inventory was evaluated. Finally, an at...
İçinden diri fay geçen yerleşimlere bir örnek olarak Şekeroba'nın durumu yüzey yırtılma haritası dikkate alınarak anlatılmakta ve Fay Yasasının önemi vurgulanmaktadır.
The surface rupture and offset data of the 2023.02.06 (10:24:49 UTC) (Mww=7.5) Ekinözü earthquake
During the last 20 years, image-processing using the different techniques of Remote Sensing have become a directing and hopeful tool for lithological investigation and mineral mapping. Discrimination of chromite bearing mineralized zones associated with ophiolite complex has been successfully carried out in recent years. In the Adana regiοn, οphiοl...
The Büyük Menderes watershed is the largest drainage watershed in Western Anatolia with an area of approximately 26,000 km². In the study area, almost 863 landslides occurred, extending over 222 km² with a mean landslide area of 0.21 km². In this study, landslide susceptibility assessments were carried out using artificial neural network method, wh...
Afete dönüşen doğa olayları, insan hayatını ve doğal yaşam alanlarını kesintiye uğratmakta, belirli bir coğrafi bölgede büyük hasarlara ve birçok problemlere neden olmaktadır. Büyük Menderes havzası içerisinde yer alan Germencik-İncirliova (Aydın) bölgesi, havza içerisinde heyelanlardan kaynaklı problemlerin yaşandığı bölgelerden biridir. Batı Anad...
Bu çalışmada, Hopa ilçesi ve çevresinde, 24 Ağustos 2015 tarihinde, 18.36-27.12 mm/saat şiddetindeki yağışların etkisi altında meydana gelen heyelanlar, Google Earth görüntüsü üzerinde sayısallaştırılarak, bölgenin olay envanter haritası hazırlanmıştır. İlgili tarihte, 75.3 km2’lik Hopa havzasında, büyüklüğü 55 m2 ile 17990 m2 arasında değişen, 560...
Despite important scientific and technological developments in risk management and mitigation techniques, landslides, along with other natural events such as earthquakes and floods, often turn into disasters and cause significant social and economic losses in our country. Effective management against losses caused by landslides requires a sound und...
The first record of the carbonate-hosted Pb-Zn deposits in Turkey dates back to the Roman period. The carbonate-hosted Pb-Zn deposits in Turkey are economically important and found in the Aladaglar-Zamantı Province. Mineral exploration and geological mapping through the utilization of the traditional geological method still remain very challenging...
Watershed management requires multidisciplinary approaches that take into account the interactions between various natural processes and land uses. It is important to evaluate the entire watershed in disaster risk management and planning studies against natural events such as landslides and floods. The aim of this study is to prepare a landslide su...
Topographic and drainage network features are important parameters in watershed
management planning due to the physical characteristics of the watershed in terms of
controlling the sustainability of water resources. In this study, physical characteristics and
geomorphometric features were evaluated in the sub-waterheds of the Eastern Black Sea that...
The Büyük Menderes watershed is the largest drainage watershed in Western Anatolia with an area of approximately 26000 km ² . In the study area, almost 863 landslides occurred, extending over 222 km ² with a mean landslide area of 0.21 km ² . In this study, landslide susceptibility assessment was carried out using Artificial Neural Network method w...
Landslide inventory mapping studies around Mersin and Erdemli regions of southern Turkey revealed that numerous old large-scale and recent small-scale landslides were presumably aroused in different time intervals. While the recent active landslides have been mostly triggered by excessive rainfall, old landslides are considered to be occurred by ge...
The accurate prediction of the extreme rainfall is of great interest in geology to make provision for nature events such as landslide. The extreme value theory is widely used to predict the daily extreme rainfall probability. In this study, we introduce a new extreme value model based on the Kumaraswamy generalized-Pareto distribution by applying i...
Maximum entropy method produce criteria to build up probability distributions depending on partial knowledge considering available environmental variables with least biased estimation. In this study, rock fall susceptibility was evaluated by maximum entropy method in Göksu river watershed (11213 km2) which is the largest sub-basin in the Eastern Me...
Dinar Fault is an active breakaway fault that plays an essential role in the southwestern Anatolia extensional tectonic regime's neotectonic development. The Dinar Fault's seismicity was proven by October 1, 1995, Dinar Earthquake (Mw 6.2). It consists of three geometric segments called Gümüşsu, Kızıllı and Dikici, respectively, from northwest to s...
Due to the subduction of the African Oceanic lithosphere, which dived northward along the Aegean-Cyprus Arc, NW-SE trending and SW dipping normal faults were developed in upper crust of SW Anatolia. Because of the slab pull of trench, the southwestern blocks of these faults move faster than the northeastern blocks, towards to the southwest. This re...
Land use planning is central for a sustainable development processes and should be structured in harmony with geo-environmental constrains. In this study, land use change detection was determined in Denizli residential area between the years 1984 and 2018. In the analyses, Landsat-5TM and Landsat-8 OLI images were used for 1984 and 2018, respective...
The idea of protecting the nature and natural resources in order to prevent the damages caused by unconscious and uncontrolled use of the land pieces constituting the habitats increases the importance of land use planning. The region between Tarsus (Mersin) and Karataş (Adana) located in the Ramsar protected areas, including the Akyatan wildlife de...
Kayseri and Adana region of Taurus mountain belt is considered in the second range for iron mineralization in Turkey. The region is
characterized by high-grade iron οre deposits under exploitation, development and exploration stage. The objective of this research is
to assess the potential of Landsat-8 OLI and Advanced Spacebοrne Thermal Emission a...
Kayseri and Adana region of Taurus mountain belt is considered in the second range for iron mineralization in Turkey. The region is
characterized by high-grade iron οre deposits under exploitation, development and exploration stage. The objective of this research is
to assess the potential of Landsat-8 OLI and Advanced Spacebοrne Thermal Emission a...
Landslide susceptibility, hazard and risk assessments at regional and medium scale
In this study landslide susceptibility assessments were evaluated using logistic regression method around the Babadağ town extending to 1133 km 2. Almost 300 slide type landslides corresponding 44km 2 were identified in the area. Some of the residential areas, agricultural lands and lifeline systems has been severely damaged by landslides and more...
Kayseri and Adana region are considered as second in iron mineralization in turkey. The study area is located in the North Adana (Tufanbeyli and surrounding). This region is characterized by high-grade iron οre deposits under exploitation, development and exploration stage. The objective of this research is to evaluate the potential of Landsat-8 OL...
Dünyada Olduğu gibi Türkiye'de de taşkınlar afete dönüşerek önemli sosyal ve ekonomik kayıplara yol açmaktadır. Taşkınlar, yaşandığı bölgenin iklim koşullarına, jeoteknik ve topoğrafik niteliklerine bağlı olarak gelişen bir doğa olayıdır. Günümüzde küresel ısınma ve buzullardaki erimeler her kıtayı etkileyen iklim değişikliklerine sebep olmuştur. Ü...
Büyük Menderes river basin is the largest drainage basin in the Western Anatolia with approximately 26000 km2. The study area has been involved almost 700 landslides, extending over 210 km2 with mean landslide area of 0.25 km2. In this study, landslide susceptibility assessment was carried out by using logistic regression method that is one of the...
Due to the geographical structure, climate and geological characteristics of our country, landslides are repeated in the same
region and turned into disasters. The main purpose of mitigating landslide damages is by developing and supervising the
approaches that will eliminate the risk of loss of life and property or reduce it for a long time. In th...
Ermenek Nehri havzası 4020 km2 ile Göksu nehrinin ana alt havzalarından birini oluşturmaktadır. Havzada heyelanlar yaygın olarak yanal ve düşey geçişli Miyosen kırıntılı ve karbonatlı birimlerin içerisinde gözlenmektedir. 1000 m’nin üzerinde derinliğe sahip vadi yamaçlarında derin kayma türü heyelanlar, resifal kireçtaşlarının oluşturduğu platform...
River systems are among the most important external forces that configure the landforms and river basins are generally controlled by factors such as climate, lithology and tectonics. The evaluation of the drainage network structure and river catchment with the help of geomorphometric indices in Geographic Information Systems environment contributes...
Next-generation sequencing (NGS) technologies have produced large volumes of genomic data. One common operation on heterogeneous genomic data is genomic interval intersection. Most of the existing tools impose restrictions such as not allowing nested intervals or requiring intervals to be sorted when finding overlaps in two or more interval sets. W...
Türkiye ve çevresindeki yoğun sismik aktivite, levha hareketleri sonucu çok sayıda levha içi aktif faylar, transform fay sistemleri ve dalma-batma kuşağı gibi ana tektonik yapılar tarafından kontrol edilmektedir. Bu sebep ile deprem tehlikesinin yüksek olduğu ülkemizde, deprem tehlike değerlendirme çalışmaları daha önce birçok kere farklı model ve...
We have updated the active fault map of Turkey and built its database within GIS environment. In the study, four distinct active fault types, classified according to geochronological criteria and character, were delineated on the 1:25,000 base map of Turkey. 176 fault segments not included in the former active fault map of Turkey, have been identif...
Over the years, several local and regional seismic hazard studies have been conducted for the estimation of the seismic hazard in Turkey using different statistical processing tools for instrumental and historical earthquake data and modeling the geologic and tectonic characteristics of the region. Recently developed techniques, increased knowledge...
A review on the historical evolution of seismic hazard maps in Turkey is followed by summarizing the important aspects of the updated national probabilistic seismic hazard maps. Comparisons with the predecessor probabilistic seismic hazard maps as well as the implications on the national design codes conclude the paper.
In this study, landslide susceptibility assessments were achieved using logistic regression, in a 523 km2 area around the Eastern Mediterranean region of Southern Turkey. In reliable landslide susceptibility modeling, among others, an appropriate landslide sampling technique is always essential. In susceptibility assessments, two different random s...
Maximum entropy method produce criteria to build up probability distributions depending on partial knowledge considering available environmental variables with least biased estimation. In this study, rock fall source zones were modelled in an area of 3000 km2 between Mut (Mersin) and Tashkent (Konya) using maximum entropy approach. The study area i...
ÖZ: Bu çalışmada, Göksu nehri havzasının ana kollarından biri olan Gökçay nehri havzasında (4425 km 2) karar ağacı yöntemi ile heyelan duyarlılık değerlendirmesi yapılmıştır. Çalışma alanında toplam alanı 77 km 2 olan 152 adet kayma türü heyelan bulunmaktadır. Karar ağacı yönteminde Ki-kare otomatik etkileşim dedektörü algoritması kullanılmıştır. H...
ÖZ: Heyelanların mekansal olabilirliğini gösteren duyarlılık haritaları bölgesel ölçekte heyelanlardan kaynaklı gelişebilecek zararların azaltılmasında önemli katkı sağlamaktadır. Heyelan duyarlılık haritalarının hazırlanması; heyelanların tipi, dağılımı ve envanter haritasının güvenilirliği başta olmak üzere, çalışılan bölgenin özelliklerini yansı...
GIRIŞ
Türkiye dünyanın en aktif deprem kuşaklarından biri olan Alp-Himalaya dağ sırası içinde, Doğu Akdeniz bölgesinde bulunur. Türkiye ve yakın çevresinde son yüzyılda büyüklüğü 6,0 ve üzeri olan 203 deprem kayıt edilmiştir (Kadirioğlu vd., 2016). Bu depremler arasındaki 72 yıkıcı deprem, bu coğrafyada yaşayan 90 binden fazla kişinin ölümüne ve t...
GIRIŞ
Doğu Akdeniz güncel levha hareketlerinin meydana geldiği bir bölgedir (Şekil 6.1). Bölgedeki levha hareketleri Geç Kretase döneminden günümüze değin güney Neotetis Okyanusu'nun kapanmasına yol açan Arap-Afrika levhaları ile Avrasya levhası arasındaki yakınsama süreciyle ilişkilidir (Mc Kenzie, 1972, 1978; Şengör ve Yılmaz, 1981).
Neotetis Oky...
GIRIŞ
Türkiye Alp-Himalaya Sıradağı içinde Doğu Akdeniz bölgesinde bulunur. Batı Avrupa’dan Asya’ya yaklaşık 9 bin km uzunluktaki bu sıradağın oluşumu günümüzde de devam etmektedir. Bu oluşum sırasında meydana gelen tektonik olaylar nedeniyle Alp-Himalaya Sıradağı dünyanın en aktif deprem kuşaklarından birisidir. Türkiye’nin sismotektonik özellikle...
In line with the development of a new seismic design code for Turkey, the need also aroused for an updated national seismic hazard map, leaving the approach of seismic zoning to define the earthquake loads, which was adopted in connection with the 1997 and 2007 versions of the seismic design code and moving towards the concept of design spectra tha...
Ülkemizde heyelan sıklığının en yüksek olduğu bölge Doğu Karadeniz bölgesidir. Doğu Karadeniz bölgesinde engebeli arazi yapısı, bol yağışlı iklim özellikleri, ayrışma, doğal bitki örtüsünün kaldırılarak fındık ve çay bahçelerine dönüştürülmesi, kırsal yerleşim birimlerinin dağınık yapılaşması, dağınık yapılaşmaya paralel düşük standartlı ulaşım ağı...
Heyelan duyarlılık değerlendirmelerinde niteliksel ve niceliksel olarak farklı yaklaşımlar kullanılmaktadır. Niceliksel heyelan duyarlılık yöntemlerinde geçmişte heyelanlara neden olan faktörlerin gelecektede heyelanların mekansal dağılımında etkili olacağı varsayımı yapılmaktadır. Buna göre duyarlılık haritalarının başarı ve tahmin kapasitesi gene...
Turkey is located in one of the highest seismic hazardous region in the world. Earthquake is the major natural hazard that causes maximal social and economic losses in Turkey. Seismic source zones in this region require characterisation of combined geological, geophysical, seismological and geodetical data. Seismotectonic database for Turkey presen...
Türkiye ve çevresindeki yoğun sismik aktivite, güncel levha hareketleri etkisi altında gelişmiş çok sayıda levha içi aktif faylar, transform fay sistemleri ve dalma-batma kuşağı gibi ana tektonik yapılar tarafından kontrol edilmektedir. Bölgedeki deprem tehlikesi daha önce birçok çalışmada farklı yöntemlerle ele alınmıştır. Ancak, deprem tehlike he...
Türkiye ve çevresindeki yoğun sismik aktivite, güncel levha hareketleri etkisi altında gelişmiş çok sayıda levha
içi aktif faylar, transform fay sistemleri ve dalma-batma kuşağı gibi ana tektonik yapılar tarafından kontrol
edilmektedir. Bölgedeki deprem tehlikesi daha önce birçok çalışmada farklı yöntemlerle ele alınmıştır. Ancak,
deprem tehlike he...
Z Heyelan duyarlılık değerlendirmelerinde istatistiksel yaklaşımlar yanısıra, son zamanlarda sayısal veri işleme yöntemlerinden yapay sinir ağları ve uzman görüşüne bağlı Bulanık Mantık yöntemleri de oldukça yaygın olarak kullanılmaktadır. Bu çalışmada, Osmaniye ili Kadirli ilçesi dolayında toplam 523 km 2 'lik bölgenin, Matlab ve Coğrafi Bilgi Sis...