Growing importance of metadata for synthetics: Calculating and Sharing Synthetic Seismic Data

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Growing importance of metadata for synthetics
Calculating and Sharing Synthetic Seismic Data

• Dogan SeberUniversity of California, San
  DiegoSan Diego Supercomputer Center

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Metadata Two definitions

• Used to refer to attributes in data sets
• Used as data about data archival information
  for a data set following a certain standard (e.g,
  Dublin Core, FGDC)

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Challenges faced in a community-based synthetic
seismogram calculations and exchange

• Inaccessibility of software
• Complexity of software
• Lack of computational resources
• Lack of reliable high resolution earth models
• Lack of data exchange standards and metadata

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What IT could offer

• The Grid
• Distributed computing environment (e.g.,
  TeraGrid)
• Seamless access to distributed data resources
  (e.g., GEON)
• Service-based architecture design (e.g., Web
  services)
• Metadata (in XML format?)
• Attribute level
• Archival/Librarian level

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An Example from GEON

• Grid-enabled synthetic seismogram calculation
  system for research and education
• In collaboration with LLNL (Bill Glassley and
  Shawn Larsen)
• Service-based access to resources and data
• Sharable control files for reproducible
  calculations
• Long term archival of results

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3D Seismic Wave Propagation
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Modeling earthquake recordings in 2D/3D
environment to study the interior of the Earth
e3d
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