The Norwegian Seismic Array (NORSAR)
Abstract
This Semiannual Technical Summary describes the operation, maintenance and research activities at the Norwegian Seismic Array (NORSAR) for the period 1 Apr - 30 Sep 1986. The uptime of the NORSAR online detection processor system has averaged 99.3 per cent during the reporting period. The array communications system has generally shown a reliable performance. A total of 2218 seismic events were reported in the NORSAR monthly seismic bulletins in this period. It has been found to be worthwhile to implement full 20 Hz processing NORSAR data, which will involve installing 8 Hz analog filters, new detection processor coding and new event processor coding. Field maintenance activity has included regular preventive maintenance at all subarrays and occasional corrective actions as required. No special problems have been noted in the performance of the field installations. In addition, field maintenance personnel have participated in experiments involving the High Frequency Seismic Element (together with Sandia representative), as well as noise measurements and reconnaissance for selecting a site for a possible new small array.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1986
- Accession Number
- ADA178251
Entities
People
- L. B. Loughran
Organizations
- Royal Norwegian Council for Scientific and Industrial Research