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S. Abdikan

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Open access Jul 2026

Sensitivity of Spaceborne LiDAR, Optical, and SAR Features for Forest Biomass Modelling: A GEDI–Sentinel-2–SAOCOM Analysis

Abstract. This study evaluates the synergy of NASA’s Global Ecosystem Dynamics Investigation (GEDI) spaceborne LiDAR, Sentinel-2 multispectral imagery, and L-band Argentine Satellite System for Emergency Management (SAOCOM) 1A SAR data for aboveground biomass (AGB) estimation in the Belgrade Forest, Istanbul. Utilizing...

Eren Gursoy Ozdemir, Omer Gokberk Narin, S. Abdikan · 0 citations
Open access Jul 2026

Leveraging PolSAR Features and Machine Learning for Improved Land Cover Discrimination with ALOS-2 PALSAR-2: A Comprehensive Evaluation over the Istanbul Metropolitan Region

Results confirm that systematic feature engineering and algorithm tuning are as critical as classifier selection in SAR-based land cover mapping and lay the foundation for scalable operational workflows applicable to rapidly urbanizing regions.

Melih Altay, B. Tavus, Fatih Fehmi Şi̇mşek et al. · 0 citations
Open access Jul 2026

Evaluating Metro Construction Impacts on Urban Ground Stability Using Multi-Temporal Sentinel-1 InSAR

Abstract. Large cities are complex areas containing densely populated areas along with their infrastructure. Surface movements can pose risks to the safety of structures, such as subway lines, in urban areas. Advanced multi-temporal Interferometric Synthetic Aperture Radar (InSAR) methods are used to obtain surface def...

Suat Coskun, Ç. Bayık, Fusun Balik Sanli et al. · 0 citations
Open access Jul 2026

A Novel Label-Free Approach for Post-Fire Environmental Assessment Based on Zero-Shot Segment Anything Model (SAM)

A zero-shot burned-area mapping framework based on the Segment Anything Model (SAM) and multispectral Sentinel-2 imagery and integrating index-based composites with SAM outputs significantly enhances the discrimination between burned and unburned surfaces by reducing boundary fragmentation and spectral confusion in het...

Melih Altay, Fatih Fehmi Şi̇mşek, S. Abdikan · 0 citations

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