The Investigation of the Combined Use of Microbarometric and Seismic Data to Detect and Identify Infrasonic Signals
Semi-Annual rept. no. 1, 1 Apr-30 Sep 1981
TELEDYNE GEOTECH GARLAND TX
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There is a need to acquire an infrasonics monitoring capability to supplement existing atmospheric nuclear test surveillance systems. A research program to investigate the combined use of a three-component seismograph and a microbarograph to supply the desired monitoring capability is currently underway. A temporary observatory consisting of a five-element microbarograph array and a three-component, long-period seismograph system has been established near McKinney, Texas, to acquire the experimental data necessary to perform the investigation. Preliminary analysis of the data indicates that the infrasonic signal-to-noise ratio will be greater at the output of a vertical seismograph than at the output of a microbarograph in a frequency range extending roughly from 0.005 Hz to 0.05 Hz during intervals of atmospheric turbulence.
- Atmospheric Physics
- Seismic Detection and Detectors