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Crustal faulting and deformation processes observed by InSAR, GPS and modelling techniques (co-organized)
Convener: T. R. Walter  | Co-Conveners: R. Lanari , R. Malservisi , F. Zucca 
Oral Programme
 / Tue, 24 Apr, 10:30–12:00  / 13:30–17:00  / Room 11
Poster Programme
 / Attendance Tue, 24 Apr, 17:30–19:00  / Hall A
Poster Summaries & DiscussionsPSD2.12 

This session aims to bring together scientists working on natural and antropogenic induced crustal deformation processes monitoring and interpretation. In this section we are seeking contribution both from geodetic and modeling community to analyze and interpret observations from InSAR and other modern geodetic methodologies. The detection of crustal deformation allows uncovering spatial and temporal patterns of subsurface processes such as fault slip, occurrence of land subsidence, magma intrusions and volcano activity, as well as liquid and gas reservoir changes. InSAR allows long-year measurements of tectonic processes at unprecedented and steadily improving spatial and temporal resolution. Recent advances of InSAR techniques and combinations with independent ground truth data permit through inversions indirect source quantification and theoretical and conceptual model developments.

Due to improved satellites and higher resolution processing, combined with modern techniques of numerical modeling and inversion, it is now possible to investigate parameter as characteristics of the source of deformation, rheologic behavior of the surrounding rocks, effects of fault complexities and complex heterogeneous mechanical properties. Digital signal processing and the improved spatial/temporal resolution of geodetic measuremnt inspire more sophisticated interpretation of these long time-series, with an analysis of time-dependent processes with the far field goal to provide new tools for the assessment of natural hazard and mitigation/monitoring of human activities as mining or wells operation.

The fundamental goal of using modern geodetic techniques is advancing our understanding of crustal deformation processes, hence this session highlights but is not limited to:
- InSAR time series methods
- Errors sources, contamination and correction procedures
- Analytical and numerical inverse and forward modelling strategies and model deficiencies
- Joint or hybrid combination of InSAR data with independent data (GPS, levelling, or gravity) and detailed observations from tectonics and geology
- The use of the space and ground based observation for monitoring natural hazards and human induced deformation

This co-organized session provides a forum for interdisciplinary discussions. We hope to stimulate interest in the method application and discuss new ways of data handling and processing. Moreover we highlight the application of InSAR in the broad field of tectonics and structural geology and emphasize modelling strategies and result interpretations.We also aim to bridge the gap between the communities studying human induced deformation (reservoir monitoring, water pumping, carbon sequestration…) and deformation induced by natural processes (magma migration, volcanic deformation, hydro-geothermal activities…) to highlight similarity and differences between the two approaches.