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DOE Program on Seismic Characterization for Regions of Interest to CTBT Monitoring,

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The November 1993 transfer of responsibility to the Department of Energy DOE for part of the Defense Departments research in support of a Comprehensive Test Ban Treaty CTBT has led to a significant reorientation of the DOE seismic research effort, with significant new efforts on Geophysical Characterization of the Middle East-North Africa ME-NA and Southern Asia SA regions, respectively guided by Lawrence Livermore National Laboratory LLNL and Los Alamos National Laboratory LANL. These programs will provide detailed regional calibrations that can be used to improve seismic phase identification, association, event location and event identification. Parameters and other information generated by these efforts will be incorporated into the knowledge bases of the Prototype National Data Center PNDC operated by the Air Force Technical Applications Center AFTAC, and the Prototype International Data Center PIDC being developed by the Advanced Research Projects Agency ARPA. Knowledge required for improved automated data processing by the PNDC and PIDC includes detailed, region-specific parameter sets related to traveltime, attenuation and frequency content of the various seismic phases that record at regional distances, plus information on seismicity, location and blasting practices of operating mines, structure of the lithosphere, topography and other data. For stations of the primary CTBT monitoring network, this information will be path-specific, with calibration parameters determined for the receiver sites, the source-receiver paths to potential source areas around the station, and the source areas. Insofar as possible these data will be formatted for direct incorporation into the knowledge base system of the data centers.

Subject Categories:

  • Government and Political Science
  • Geology, Geochemistry and Mineralogy
  • Seismology
  • Seismic Detection and Detectors
  • Nuclear Weapons
  • Computer Systems

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