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USEReST Workshop - Naples, Italy, November 11-14, 2008 The SiGRiS pilot project: producing value-added, EO-based information for the management of the.

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Presentation on theme: "USEReST Workshop - Naples, Italy, November 11-14, 2008 The SiGRiS pilot project: producing value-added, EO-based information for the management of the."— Presentation transcript:

1 USEReST Workshop - Naples, Italy, November 11-14, 2008 The SiGRiS pilot project: producing value-added, EO-based information for the management of the Seismic Risk S. Salvi 1, S. Vignoli 2, S. Zoffoli 3, P. Soddu 4, and the SIGRIS team 1 Istituto Nazionale di Geofisica e Vulcanologia 2 Advanced Computer System spa 3 Agenzia Spaziale Italiana 4 Dipartimento della Protezione Civile SiGRiS

2 USEReST Workshop - Naples, Italy, November 11-14, 2008 To exploit the full potential of EO data in the decision chain for the management of the Seismic Risk. Emphasis is put on the operational use of Cosmo- Skymed data. Scope

3 USEReST Workshop - Naples, Italy, November 11-14, 2008 Specific objectives  To generate value-added products using well- established techniques and methods for:  To carry out research to fill gaps in the above fields  To demonstrate operational use by the Civil Protection Service  To define factors limiting the EO data exploitation 1 - geophysical data extraction from EO data, 2 - geophysical interpretation through a joint modeling of EO and ground data

4 USEReST Workshop - Naples, Italy, November 11-14, 2008  The SIGRIS pilot project is funded by ASI, with 3.7 M€.  The project duration is 2007-2010.  The end User is the Italian Civil Protection Department (DPC)  The system operator will be INGV More details

5 USEReST Workshop - Naples, Italy, November 11-14, 2008 The research subjects Extraction of geophysical data from EO data –Improvement of the SBAS time-series DInSAR algorithm –Cross validation using different data sets –Integration of geophysical models in the DInSAR processing Geophysical modeling –Improve the modeling for the generation of VA products –Assure a better integration with in-situ observations –Assimilation of the model results in the Seismic Hazard Assessment procedures

6 USEReST Workshop - Naples, Italy, November 11-14, 2008 Common requirements of the system products 1.Timeliness 2.Established precision/accuracy 3.Standardization

7 USEReST Workshop - Naples, Italy, November 11-14, 2008 Products in two main SRM phases: 1.Knowledge & Prevention, i.e. support to the Seismic Hazard assessment 2.Warning & Crisis, i.e. support to the Emergency management

8 USEReST Workshop - Naples, Italy, November 11-14, 2008 Products to support Seismic Hazard assessment

9 USEReST Workshop - Naples, Italy, November 11-14, 2008 High resolution ground velocity maps Data: ERS, ENVISAT, Cosmo Skymed, CGPS Techniques: SBAS, PS-InSAR

10 USEReST Workshop - Naples, Italy, November 11-14, 2008  Research on cross validation techniques  Research on multiframe data processing (SBAS)  Research on how to assimilate ground velocities in SHA  Updated every year  Validated using CGPS, Leveling, and SAR LoS velocities from various orbits, satellites and bands High resolution ground velocity maps

11 USEReST Workshop - Naples, Italy, November 11-14, 2008 Interseismic fault models Mattinata fault model: vertical, right-lateral fault

12 USEReST Workshop - Naples, Italy, November 11-14, 2008 Interseismic fault models ~ 3 mm/yr

13 USEReST Workshop - Naples, Italy, November 11-14, 2008  Research on inversion techniques  Research on model improvements  Research on how to assimilate fault models in SHA Interseismic fault models  Obtained by analytical inversion models and numerical models  Constrained and validated by ground data

14 USEReST Workshop - Naples, Italy, November 11-14, 2008  Identification of high strain patterns  Mapping and dimensioning of active faults  Refinement of seismotectonic models Expected benefits for SHA

15 USEReST Workshop - Naples, Italy, November 11-14, 2008 Products to support the Emergency management

16 USEReST Workshop - Naples, Italy, November 11-14, 2008 Coseismic deformation and source models Data: ERS, ENVISAT, Cosmo Skymed, ALOS Techniques: Standard DInSAR

17 USEReST Workshop - Naples, Italy, November 11-14, 2008 Coseismic deformation and source models Geophysical data: Coseismic ground displacement Coseismic Displacement, cm

18 USEReST Workshop - Naples, Italy, November 11-14, 2008 Coseismic deformation and source models ModelStrikeDipRake Length (km) Width (km) Slip (cm) Depth (km) Moment (dyne cm) Mod_A154°46°-77° * 167381.984.8 x 10 24 Geophysical model: Geometry, kinematics, and slip distribution of the fault dislocation

19 USEReST Workshop - Naples, Italy, November 11-14, 2008 Early damage assessment Data: High resolution optical data, SAR data Techniques: Operator-assisted photo interpretation, DInSAR Geological effects

20 USEReST Workshop - Naples, Italy, November 11-14, 2008 Early damage assessment Data: High resolution optical and SAR data Techniques: Automatic change detection, operator-assisted photo interpretation, InSAR Urban damage

21 USEReST Workshop - Naples, Italy, November 11-14, 2008  Timeliness: damage é 1-2 days, fault model é 2-6 days  Released in successive versions with increased accuracy Crisis products  Research on dislocation modeling of DInSAR interferograms  Research on data fusion and classification (urban damage)

22 USEReST Workshop - Naples, Italy, November 11-14, 2008 Benefits for Crisis management  Assessment of possible triggering of neighbouring faults  Impact of ground deformation on the hydrological system  Assessment of an event scenario  More effective search and rescue operations  Evolution of damage increments due to aftershocks

23 USEReST Workshop - Naples, Italy, November 11-14, 2008 Requirements for Crisis product  Fast EO data programming, acquisition and delivery  Same acquisition geometry (for change detection and InSAR)  Pre-seismic data regularly updated (more frequently for X-band SAR)  Minimise processing and validation time (SIGRIS infrastructure)

24 USEReST Workshop - Naples, Italy, November 11-14, 2008 Sichuan earthquake - May 12, 2008 April 13th – May 15th stripmap interferogam 3 days after Eq Cosmo-Skymed data Cheng Du

25 USEReST Workshop - Naples, Italy, November 11-14, 2008 Sichuan earthquake - May 12, 2008 Cosmo-Skymed data LoS displacement: 7 cm (model) vs. 13 cm (observation)

26 USEReST Workshop - Naples, Italy, November 11-14, 2008 Sichuan earthquake - May 12, 2008 April 13th – May 15th stripmap image pair 3 days after Eq Cosmo-Skymed data Inferred damage in red

27 USEReST Workshop - Naples, Italy, November 11-14, 2008 Final remark on operational use of EO data for SRM 1.Data availability is the most important issue: background missions are mandatory for both K&P and W&C apps, as fast acquisitions are for W&C apps. 2.Algorithms and models should be refined further, although many can already be used operationally

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