Satellite data, InSAR

We are developing satellite radar data processing tools for ground motion analysis. As these tools have to handle ever-increasing data flows and volumes, HPC and distributed computing expertise has been added to take advantage of regional computing infrastructures.

Our processing chain NSBAS relies on the ROI_PAC software roipac.org of the Jet Propulsion Laboratory/Calltech to manage the processing of radar interferometry data (InSAR) from raw radar data provided by space agencies to time series analysis.

The codes and documentation associated with NSBAS are available on the OSUG forge, in the isterre-nsbas repository.

The business expertise of the technical staff involved are :
– Radar interferometry theory
– Spatial and temporal analysis of ground deformations for geophysical applications
– High-performance computing, distributed computing

Contacts for the activity’InSAR’ :

– Team Seismic cycles and transient deformations

  • Marie-Pierre Doin, CNRS Research Officer
  • Cécile Lasserre, CNRS Research Officer
  • Erwan Pathier, UGA Senior Lecturer
  • Virginie Pinel, IRD Research Officer
  • Anne Socquet, UGA Assistant Physicist
  • Franck Tollard, CNRS Research Engineer

Specific skills

– Langages C, Fortran, Perl, Python
– Parallel computing, distributed computing, especially MPI standard

Hardware and software resources backed by the’InSAR’ activity

– Link to CIMENT calculation means
– Link to ISTerre calculation methods

Links with other IT activities and resources in ISterre and OSUG

– Laboratory IT resources

Link to the websites of the research projects in which the members of the "InSAR" group participate

The research projects related to the activity are :
– ANR projects :

  • LONGRIBA : Understanding the tectonics of the eastern margin of the Tibetan plateau (2011 - 2013)
  • LIBRIS : Contribution to the study of seismic risk in Lebanon (2010 - 2013)
  • EFIDIR : Method for measuring displacements in Radar Imaging (2009 - 1012)
  • G-GAP : Seismic risk associated with subduction (2009 - 2012)

– LabEx :

  • OSUG@2020 : innovative strategies for the observation and modelling of natural systems (2013)

– Others :

  • TOSCA : (2013 - 2014)
  • DRAGON : China’s major dropout vulnerabilities (2012 - 2016)
  • MASTODONS : Data masses (2013 – )
  • PNTS