Radar remote sensing from space for surface deformation analysis: present and future opportunities from the new SAR sensor generation

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• 作者：Eugenio Sansosti ; Michele Manunta ; Francesco Casu ; Manuela Bonano…
• 关键词：Ground deformation ; Remote Sensing ; Synthetic Aperture Radar (SAR) ; DInSAR ; Urban monitoring ; Wide area monitoring
• 刊名：Rendiconti Lincei
• 出版年：2015
• 出版时间：June 2015
• 年：2015
• 卷：26
• 期：1-supp
• 页码：75-84
• 全文大小：6,324 KB
• 刊物类别：Earth and Environmental Science
• 刊物主题：Earth sciences
  Life Sciences
  Biomedicine
  History of Science
  
• 出版者：Springer Milan
• ISSN：1720-0776

文摘

This paper discusses, through two selected case studies based on real data, how the availability of the new generation of Synthetic Aperture Radar (SAR) sensors, characterized by reduced revisiting time and improved spatial resolution or coverage, is impacting the exploitation of Differential SAR Interferometry (DInSAR) techniques for the detection and monitoring of deformation phenomena. The presented analysis is carried out using X-band data of the COSMO-SkyMed constellation satellites, as well as C-band data acquired by the Sentinel-1A sensor; furthermore, we compare the achieved results to those based on first-generation ERS-1/2 and ENVISAT satellite data. The first case study shows how the COSMO-SkyMed X-band SAR systems open new opportunities for the detection and monitoring of deformation phenomena at the scale of a single building, even when they are characterized by a rather fast dynamic. The second experiment is based on the Sentinel-1A DInSAR measurements and permits us to envisage new scenarios for deformation analysis of very wide areas. The final discussion is devoted to summarise the lessons learned through the presented case studies and to identify the main future actions needed for a full exploitation of the surface deformation measurement capability provided by the new generation of SAR sensor.