Special Data Collection Systems (Project T/4703
Semiannual rept. Oct 1978-Mar 1979
TELEDYNE GEOTECH GARLAND TX
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The work performed under Project T4703, Special Data Collection Systems, during the period from October 1978 through March 1979 is described. The present program is an extension of the program which began in 1973 under Contract F08606-74-C-0013. At the start of this period, one SDCS unit remained in operation at a site near Rio Blanco, Colorado. Also, three systems were being set up at Oak Springs Butte, Nevada Rulison, Colorado and Battle Mountain, Nevada these systems began operations by late October. These four systems were configured to record three-component short-period data on both digital primary and analog secondary tape recording systems the Battle Mountain site also recorded three-component long-period data. The primary purpose of these operations was to gather data at or near the sites of prior underground explosions. These data were analyzed at the Seismic Data Analysis Center in Alexandria, Virginia, to determine the characteristics of incoming teleseismic signals and to thereby gain insight into the effects of local geology on the explosion-generated signals and other problems related to the detection and identification of underground nuclear explosions. Operations at these four site continued with only routine problems until late March when all units were shut down. Equipment was to be returned to Garland, Texas, for refurbishing and storage in preparation for later but unspecified deployments.