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This study presents a geotechnical stability risk model for assessing land and structural movements in archaeological sites. Using synthetic aperture radar (SAR) data from Sentinel-1 and COSMO-SkyMed, the analysis applies differential SAR interferometry (DInSAR) and persistent scatterer interferometry (PSI) to generate displacement and coherence maps for risk assessment. Two distinct data processing chains are used: the open-source Sentinel Application Platform (SNAP) for Sentinel-1 and ENVI® SARscape® for COSMO-SkyMed. Both incorporate DEM data for topographic corrections and advanced algorithms for phase unwrapping and noise reduction. The results include geocoded vertical displacement maps and multiyear average displacement models, providing critical insights into long-term structural stability. Case studies from Amathus (Cyprus) and Falerii Novi (Italy) highlight variations in deformation behavior influenced by geological conditions and historical urban layouts. A comparative analysis evaluates the effectiveness of SAR processing techniques, highlighting the resilience of PSI against decorrelation and the robustness of DInSAR in coherent terrain. The study integrates hazard, exposure, and vulnerability analyzes to develop a risk assessment framework for cultural heritage sites. This model facilitates detailed risk mapping to support preservation efforts. The methodology has scalable applications in diverse archaeological settings, advancing remote sensing science and heritage management. Key findings include a comparative evaluation of SAR techniques, their performance in different terrains, and their role in multidisciplinary risk assessments. The research underscores the transformative impact of remote sensing on protecting archaeological heritage from geotechnical risks.

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Land Movement Risk Assessment Using Synthetic Aperture Radar (SAR) Data: Comparative Analysis and Methodological Insights from RESEARCH Project

  • 会议论文

  • 发表日期：

    2025年

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  • Eirini Marinou,
  • Betty Charalampopoulou,
  • Christos Kontopoulos

摘要

This study presents a geotechnical stability risk model for assessing land and structural movements in archaeological sites. Using synthetic aperture radar (SAR) data from Sentinel-1 and COSMO-SkyMed, the analysis applies differential SAR interferometry (DInSAR) and persistent scatterer interferometry (PSI) to generate displacement and coherence maps for risk assessment. Two distinct data processing chains are used: the open-source Sentinel Application Platform (SNAP) for Sentinel-1 and ENVI® SARscape® for COSMO-SkyMed. Both incorporate DEM data for topographic corrections and advanced algorithms for phase unwrapping and noise reduction. The results include geocoded vertical displacement maps and multiyear average displacement models, providing critical insights into long-term structural stability. Case studies from Amathus (Cyprus) and Falerii Novi (Italy) highlight variations in deformation behavior influenced by geological conditions and historical urban layouts. A comparative analysis evaluates the effectiveness of SAR processing techniques, highlighting the resilience of PSI against decorrelation and the robustness of DInSAR in coherent terrain. The study integrates hazard, exposure, and vulnerability analyzes to develop a risk assessment framework for cultural heritage sites. This model facilitates detailed risk mapping to support preservation efforts. The methodology has scalable applications in diverse archaeological settings, advancing remote sensing science and heritage management. Key findings include a comparative evaluation of SAR techniques, their performance in different terrains, and their role in multidisciplinary risk assessments. The research underscores the transformative impact of remote sensing on protecting archaeological heritage from geotechnical risks.