A5088080597- GNSS positioning and interference
- Geophysics and Gravity Measurements
- Inertial Sensor and Navigation
- earthquake and tectonic studies
- Ionosphere and magnetosphere dynamics
- Earthquake Detection and Analysis
- Historical Geography and Cartography
- Disaster Response and Management
- Statistical and numerical algorithms
- Engineering Applied Research
- High-pressure geophysics and materials
- 3D Shape Modeling and Analysis
- Climate change and permafrost
- Cryospheric studies and observations
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Benford’s Law and Fraud Detection
- Arctic and Antarctic ice dynamics
- Scientific Measurement and Uncertainty Evaluation
- Geological Modeling and Analysis
- Maritime Navigation and Safety
- Landslides and related hazards
- Solar and Space Plasma Dynamics
Tokat Gaziosmanpaşa Üniversitesi
2023-2025
Yıldız Technical University
2018-2023
GFZ Helmholtz Centre for Geosciences
2023
Daimler (Japan)
2021
An earthquake doublet (Mw 7.8 and Mw 7.6) occurred on the East Anatolian Fault Zone (EAFZ) February 6th, 2023. The events produced significant ground motions caused major impacts to life infrastructure throughout SE Türkiye NW Syria. Here we show results of relocations first 11 days aftershocks rupture models for both inferred from kinematic inversion HR-GNSS strong motion data considering a multi-fault, 3D geometry. We find that event nucleated previously unmapped fault before transitioning...
Abstract The 6 February 2023 Mw 7.8 Pazarcık and subsequent 7.5 Elbistan earthquakes generated strong ground shaking that resulted in catastrophic human economic loss across south-central Türkiye northwest Syria. rapid characterization of the earthquakes, including their location, size, fault geometries, slip kinematics, is critical to estimate impact significant seismic events. U.S. Geological Survey National Earthquake Information Center (NEIC) provides real-time monitoring globally,...
An earthquake doublet (Mw 7.8 and Mw 7.6) occurred on the East Anatolian Fault Zone (EAFZ) February 6th, 2023. The events produced significant ground motions caused major impacts to life infrastructure throughout SE Türkiye NW Syria. Here we show results of relocations first 11 days aftershocks rupture models for both inferred from kinematic inversion HR-GNSS strong motion data considering a multi-fault, 3D geometry. We find that event nucleated previously unmapped fault before transitioning...
Abstract. We have developed an open source ray-tracing tool for space geodetic techniques. The software uses the geometric optics approximation to calculate signal travel time delay induced by atmosphere between two given points. is written in Fortran and OpenMP speed up computation. input are 3D pressure-, temperature- humidity fields. Earths magnetic- electron density field optional. For neutral (troposphere) accepts NetCDF files from atmospheric reanalysis ERA5 mesoscale model WRF....
Abstract Following the catastrophic 6 February 2023 Mw 7.8 and 7.6 Kahramanmaraş earthquakes in East Anatolian Fault Zone (EAFZ; southeast Türkiye), numerous aftershocks occurred along major branches of this left‐lateral shear zone. The spatio‐temporal distribution implied stress‐triggering effects co‐seismic ruptures on closely connected fault segments over large distances. On 20 two with 6.4 5.2 struck Hatay (Türkiye) located near Samandağ‐Antakya segment EAFZ. To understand rupture...
Determining and monitoring ground deformations is critical for hazard management studies, especially in megacities, these studies might help prevent future disaster conditions save many lives. In recent years, the Golden Horn, located southeast of European part Istanbul within a UNESCO-protected region, has experienced significant changes regional linked to rapid population growth, infrastructure work, tramway construction. this study, we used Interferometric Synthetic Aperture Radar (InSAR)...
Günümüzde jeodezik amaçlı yapılan çalışmaların birçoğunda Küresel Konumlama ve Uydu Sistemleri'ne (Global Navigation Satellite System, GNSS) ait veriler kullanılmaktadır. GNSS yapısında, GPS, GLONASS, Galileo BeiDou uydu sistemleri beraber değerlendirilerek konum bilgisi elde edilebilmektedir. Uluslararası Servisi (International Service, IGS) bu amaç doğrultusunda farklı sinyal sistem verilerinin toplanması, izlenmesi analiz edilmesi için Multi-GNSS Experiment (MGEX) adında bir proje...
Hassas Mutlak Konum Belirleme (Precise Point Positioning - PPP) tekniği, harita/geomatik mühendisliği uygulamalarında son yıllarda öne çıkan önemli konulardan birisidir. PPP tekniğinde konumu belirlenecek noktada yalnızca bir tek Küresel Navigasyon Uydu Sistemleri (Global Navigation Satellite Systems (GNSS)) alıcısının kullanılması yeterlidir. Bu nedenle kullanıcılar bu tekniği birçok uygulamada geleneksel bağıl konumlama yöntemine göre tercih etmektedirler. ile yapılan çalışmalarda veri...
Bir datumdan diğer bir datuma olan koordinat dönüşümü jeodezinin temel problemlerinden tanesidir. Genel olarak problem, matematiksel eşitlikler kullanarak koordinatların, kartezyen sisteminde iki eksenin kesişimi ile tanımlanan başlangıç noktasından başka sisteme tanımlanmaktadır. Dönüşüm parametrelerinin hesaplanması için, her sistemde koordinatları bilinen yeterli sayıdaki ortak noktanın olması gerekmektedir. Problem boyutlu ya da üç sistemlerinin dönüşümünü içerir. Koordinat dönüşümünde...
GPS teknolojisi, tektonik aktivitelerin izlenmesi, deformasyon analizi, hassas nokta konumlama gibi pek çok jeodezik çalışma için veri sağlamaktadır. Bu çalışmalarda kullanılacak doğruluğu yüksek verinin analizi uydulardan gönderilen sinyallerin yolluluk etkisinden arındırılması gerekmektedir. Genel bir tanım olarak, uydudan yayılan sinyalin GPS/GNSS alıcısına birden fazla yoldan ulaşmasına denir. genellikle alıcının yakın çevresinde bulunan yansıma yüzeylerinden kaynaklanmaktadır. Böylece,...
The coronavirus disease first identified in mid-December 2019 Wuhan, China is an ongoing pandemic and the virus has spread around world. As of 13 March 2020, number new cases started to increase significantly Europe, Europe was considered as center Covid-19 announced by WHO. Confirmed case rate (CCR), computed from numbers confirmed over tests countries can be used confirm quality numbers, detect manipulation for health surveillance systems managing situation testing whether or not follow...
<p>Global Navigation Satellite Systems (GNSS) are used for different geodetic applications such as monitoring deformations and determining plate velocities. Precise positions of stations needed studies. GNSS error sources should be modelled or eliminated to achieve precise coordinates. Some (e.g., receiver satellite clock errors) can by differencing techniques in relative point positioning. However, positioning (PPP) these errors since the technique uses un-differenced...
Being accessible and processible of the raw GNSS data smartphones has been an innovation for low-cost positioning studies. With release world’s first smartphone with dual frequency chipset Mi8 by Xiaomi in May 2018, studies on smartphone-based engineering applications have gained great momentum. Considering these development dynamics, this study, repeatedly collected static observations two days two-hour time span were processed using GipsyX RTKLIB software epoch kinematic Precise Point...