Progress Report NORSAR Phase 3

The report covers the period 1 April - 30 June 1973 which is characterized by improving, estimating and simulating the array detection capability. The operational performance of the field equipment has been satisfactory also in this reporting period, and preventive maintenance has been emphasized. M...

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Bibliographic Details
Main Author: Husebye, E S
Other Authors: ROYAL NORWEGIAN COUNCIL FOR SCIENTIFIC AND INDUSTRIAL RESEARCH KJELLER
Format: Text
Language:English
Published: 1973
Subjects:
Seismology
Seismic Detection and Detectors
*NORWAY
*UNDERGROUND EXPLOSIONS
DATA PROCESSING
EARTHQUAKES
NUCLEAR EXPLOSIONS
OPERATION
RAYLEIGH WAVES
SEISMIC ARRAYS
SEISMIC DETECTION
NORSAR(Norweigan Seismic Array)
Norwegian seismic array
Seismic noise
Norway
Kamchatka
Online Access:http://www.dtic.mil/docs/citations/AD0769848
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0769848
Description
Summary:The report covers the period 1 April - 30 June 1973 which is characterized by improving, estimating and simulating the array detection capability. The operational performance of the field equipment has been satisfactory also in this reporting period, and preventive maintenance has been emphasized. Much programming effort has been invested in automating the array monitoring analysis. The 978 seismic events reported in June are mainly due to two earthquake swarms from Japan and Kamchatka. Evaluation studies of NORSAR detection performance gave the best results for events in Central Asia and adjacent regions when the 90% cumulative detectability values are in the range 3.6-3.8 NORSAR m sub b units. See also report dated 15 May 1973, AD766543.

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