Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5754667 | Remote Sensing of Environment | 2017 | 9 Pages |
Abstract
In this work we exploit X- and C-band InSAR data for detecting local deformation phenomena induced by the 2016-2017 Central Italy seismic sequence. Our goal is to highlight the usefulness of multi-band InSAR analysis for Hazard assessing and Rapid Mapping purposes when in-situ investigations are difficult or dangerous to be performed. Indeed, local seismic-induced effects (such as landslides, avalanches, subsidence, etc.) could severely impact the environment and the population in the surrounding of areas hit by earthquakes. We focused on four areas, named Monte Vettore, Podalla, Bolognola and Cicconi, where InSAR outcomes revealed how the main seismic events of the sequence activated several landslides and secondary faults interested by deformation of ~Â 2-3Â cm along the satellite Line-of-Sight (LoS). The use of multi-band InSAR data allows the observation of multi-scale deformation phenomena with both different spatial resolution and coverage, highlighting the limits and constraints of different SAR sensors. Moreover, it ensures the crosschecking of displacement patterns retrieved through different InSAR products, especially when no ground truth or in situ ancillary data are available for validation purposes. As a result, the retrieved InSAR information can support the Scientific Community and the Institutions in the management of crisis emergencies.
Keywords
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Computers in Earth Sciences
Authors
Marco Polcari, Antonio Montuori, Christian Bignami, Marco Moro, Salvatore Stramondo, Cristiano Tolomei,