In the study both DInSAR and PSI techniques have been used to generate co-seismic and post-seismic deformation patterns for the Mw=6.3 earthquake which the Abruzzo region in Italy on April 6th, 2009. In particular, we used SAR data acquired in (wavelength of 5.6 cm) by the European Space Agency (ESA) ENVISAT satellite, and X-band (wavelength of 3.1 cm) by the Italian Space Agency (ASI) constellation COSMO-SkyMed (CSK) as well as by the German Space Agency (DLR) TerraSAR-X (TSX). Concerning the co-seismic deformation, is has been studied by processing, through standard DInSAR technique, SAR data with different values of wavelength, spatial as well as incident angles. A comparative analysis of interferometric fringe patterns is presented. Due to the low deformation rate involved, the study of post-seismic events requires the use of a multi-temporal InSAR approach. Thanks to the availability of a stacks of ascending CSK acquisitions, ad hoc programmed by ASI on the area stricken by the earthquake, it was possible to infer post-seismic deformation map through SPINUA PSI-like InSAR analysis. A first validation of these results is also presented.
|Autori interni:||CHIARADIA, Maria Teresa|
|Titolo:||On the use of C- and X-band SAR data for studying the ground deformations induced by the April 6th, 2009 Earthquake in Abruzzo|
|Data di pubblicazione:||2009|
|Nome del convegno:||Workshop Fringe 2009 - Advances in the Science and Applications of SAR Interferometry|
|Appare nelle tipologie:||4.1 Contributo in Atti di convegno|