The Norwegian Seismic Array (NORSAR)

Abstract

This report describes the operation, maintenance and research activities at the Norwegian Seismic Array (NORSAR) for the period 1 October 1981 to 31 March 1982. The uptime of the NORSAR online detection processor system has averaged 91.9%, which represents an improvement of 3% compared to the previous period. There have been no major breakdowns on the communications lines, but some lines have had periods with bad performance, especially the O2C line. The new DP system to be implemented on IBM 4331/MODCOMP is now, except for some EOC functions, ready. The communication problem between IBM 4331 and Modcomp has been solved, and test runs have been done with no errors. Some improvements in programs and some more testing still needs to be done before the new DP is ready to replace the current system. The research activity is briefly described in Section VI.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1982
Accession Number
ADA130052

Entities

People

  • Joergen Torstveit

Organizations

  • Royal Norwegian Council for Scientific and Industrial Research

Tags

Communities of Interest

  • Energy and Power Technologies
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Data Analysis
  • Data Processing
  • Detection
  • Detectors
  • Downtime
  • Eastern Europe
  • Frequency
  • Frequency Bands
  • Geometry
  • Measurement
  • Operating Systems
  • Phase Velocity
  • Plastic Explosives
  • Seismic Arrays
  • Three Dimensional
  • Time Intervals
  • Travel Time

Readers

  • Business Analytics
  • Logistics and Supply Chain Management.
  • Seismology