How second generation SAR systems are impacting the analysis of ground deformation (Articolo in rivista)

Type
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  • How second generation SAR systems are impacting the analysis of ground deformation (Articolo in rivista) (literal)
Anno
  • 2014-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.jag.2013.10.007 (literal)
Alternative label
  • Eugenio Sansosti, Paolo Berardino, Manuela Bonano, Fabiana Calò, Raffaele Castaldo, Francesco Casu, Michele Manunta, Mariarosaria Manzo, Antonio Pepe, Susi Pepe, Giuseppe Solaro, Pietro Tizzani, Giovanni Zeni, Riccardo Lanari (2014)
    How second generation SAR systems are impacting the analysis of ground deformation
    in International journal of applied earth observation and geoinformation; Elsevier BV, Amsterdam (Paesi Bassi)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Eugenio Sansosti, Paolo Berardino, Manuela Bonano, Fabiana Calò, Raffaele Castaldo, Francesco Casu, Michele Manunta, Mariarosaria Manzo, Antonio Pepe, Susi Pepe, Giuseppe Solaro, Pietro Tizzani, Giovanni Zeni, Riccardo Lanari (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 28 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 11 (literal)
Note
  • Scopus (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Istituto di Ricerca per il Rilevamento Elettromagnetico dell'Ambiente (IREA) (literal)
Titolo
  • How second generation SAR systems are impacting the analysis of ground deformation (literal)
Abstract
  • In recent years, a second generation of Synthetic Aperture Radar (SAR) satellite sensor has been designed and, partially, put into operation, leading to an important breakthrough in Earth Science studies. The common characteristics of such new systems are, indeed, a reduced revisit time (as short as a few days) and, in most cases, an improved spatial resolution (as small as a few meters), providing scientists with unprecedented data for the mapping and monitoring of natural and human-induced hazards. This paper provides an overview on the new observational capability offered by the second generation of SAR sensors, especially in the field of ground deformation analysis for mitigating the risk associated with natural and human-induced hazards. In particular, we exploit the high resolution X-band data acquired by the COSMO-SkyMed (CSK) constellation to show how deformation phenomena characterized by limited spatial extent and extremely fast dynamics can be detected and investigated in details. Whenever possible, we compare the achieved results with those obtained by using data collected by the first generation ERS-1/2 and ENVISAT systems. A comparison with one ALOS satellite dataset is also included. Most of the results, based on the application of Differential SAR Interferometry (DInSAR) techniques, highlight how this technology is not anymore just a sophisticated tool for remotely studying surface deformation phenomena, but it is becoming an operational system for near-real time deformation monitoring. Moreover, we also show how the improved spatial resolution extends the possibility to exploit SAR image amplitude, instead of phase, for direct comparison with optical data and for imaging large defor- mation episodes, typically associated with strong seismic events, for which DInSAR may fail. (literal)
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