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The SPICE project Expected seismic simulation data Results of ORFEUS/SPICE Meeting May 7, 2004

S eismic wave P ropagation and I maging in C omplex media: a E uropean network Suggestions for synthetic data storage. H., Igel, J. Wassermann, M. Stupazzini (Munich) J.-P. Vilotte (IPG Paris) B. Dost, T. Van Eck (ORFEUS). The SPICE project Expected seismic simulation data

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The SPICE project Expected seismic simulation data Results of ORFEUS/SPICE Meeting May 7, 2004

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  1. Seismic wave Propagation and Imaging in Complex media: a European networkSuggestions for synthetic data storage H., Igel, J. Wassermann, M. Stupazzini (Munich) J.-P. Vilotte (IPG Paris) B. Dost, T. Van Eck (ORFEUS) • The SPICE project • Expected seismic simulation data • Results of ORFEUS/SPICE Meeting May 7, 2004 • Examples

  2. One specific SPICE task: • Develop archive with synthetic simulation data, www-interface for data access, visualization, extraction etc. Seismic wave Propagation In Complex media: a European network • Marie Curie Research Training network in the 6th Framework Programme (Coordination: Munich seismology) • 14 institutions (INGV Rome, IPG, ENS Paris, Oxford, Utrecht, Munich, Bratislava, Prague, Oslo, Dublin, Naples, Hamburg, Trieste, Zurich) • 14 postdocs and 14 PhDs, 4-year project (start 2004) • Training workshops, development of training material • Four task groups in the fields of (1) Global seismology, (2) volcano seismology and reservoir seismics, (3) earthquake physics and (4) digital library

  3. Expected simulation data:Volcano seismology Example: Merapi volcano, Indonesia From: Ripperger, Igel, Wassermann, 2004

  4. Expected simulation data:Dynamic rupture Example: Rupture at material interfaces From: Brietzke and Ben-Zion, 2004

  5. Expected simulation data:Earthquake scenarios Roermond – earthquake M5.9, 1992 Cologne basin Germany

  6. Expected simulation data:Global seismology

  7. ORFEUS-SPICE Meeting May 7, 2004 – Results 1/2 • SEED/miniSEED seems to be the most appropriate synthetic data format for compatibility with the observational IT infrastructure • We defined three synthetic data types: • Type 1: Synthetic data (seismograms) that have been calculated for specific past earthquakes and are available for existing seismometer locations. These synthetic data should be stored with the corresponding UTC timing for the pre-determined origin time. • Type 2: Synthetic data (seismograms) for virtual earthquakes calculated for virtual networks. This could correspond to potential earthquake scenarios in a particular region and the virtual network could consist of the 2-D surface grid points (e.g. 2-D array) where synthetic seismograms have been calculated. • Type 3: Synthetic seismogram data (i.e. complete wave fields) that are available for a 3D volume (e.g. sedimentary basin, whole Earth).

  8. ORFEUS-SPICE Meeting May 7, 2004 – Results 2/2 • Additional header information for Synthetic data types (Metadata) must include at least: • a pointer to information on the model structure • the numerical method employed • simulation information (e.g. valid frequency rangeof simulation, physical approximations, etc.) • earthquake source information • identification (software author, date of datageneration, etc.)

  9. Examples: Data Type 1Observations (X) and Synthetics (⃞) If you read event data, a flag (⃞) indicates that synthetics are available

  10. Examples: Data Type 1Observations (X) and Synthetics (⃞)

  11. Examples: Data Type 2virtual earthquake, virtual array

  12. Necessary developments • International working group and schedule for implementation • Multi-national agreement on synthetic data format • Provision for multi-component (>3C) data (e.g. strains, rotations, atmospheric parameters) • Coordinated software development for data access, visualization etc. • Development of a test data base accessible to the community with feed-back options

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