Accession Number:

ADA126249

Title:

The Norwegian Seismic Array (NORSAR)

Descriptive Note:

Semiannual technical summary rept. 1 Oct 1981-31 Mar 1982

Corporate Author:

ROYAL NORWEGIAN COUNCIL FOR SCIENTIFIC AND INDUSTRIAL RESEARCH KJELLER

Personal Author(s):

Report Date:

1982-07-01

Pagination or Media Count:

81.0

Abstract:

The uptime of the NORSAR online detection processor system has averaged 91.9, which represents an improvement of 3 compared to the previous period. Almost half of the downtime was due to problems in connection with the termination of the NOrSAR ARPANET circuit. The SPS has been working well and has caused less than 1 downtime. A total of 1681 events were reported in this period, giving a daily average of 9.2 events. The number of reported events per month varies from 210 in February to 363 in December. There have been no major breakdowns on the communications lines, but some lines have had periods with bad performance, especially the 02C line. The new DP system to be implemented on IBM 4331MODCOMP 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 with a summary of seven technical reportspapers prepared.

Subject Categories:

  • Seismology
  • Non-Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE