Seismic Methods of Infrasonic Signal Detection

Infrasonics monitoring using a three-component borehole seismograph and surface microbarograph array show that within a frequency band extending between about 0.005 Hz to about 0.05-0.1 Hz, depending on local wind conditions, the infrasonic depth will be no worse than, and can be considerably better...

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Bibliographic Details
Main Authors: Mauk, Frederick J, Sorrells, Gordon G, Grant, Lori, Taylor, Kenneth B
Format: Report
Language:English
Subjects:
Acoustics
DETECTION
Infrasonics
Meteorology
Microbarograms
MONITORS
NETWORKS
SEISMOGRAPHS
Seismology
Subhertian frequencies
Surface arrays
WIND
YIELD
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Summary:Infrasonics monitoring using a three-component borehole seismograph and surface microbarograph array show that within a frequency band extending between about 0.005 Hz to about 0.05-0.1 Hz, depending on local wind conditions, the infrasonic depth will be no worse than, and can be considerably better than, that observed on a microbarogram. Results lend credence to the hypothesis that, within this frequency band, infrasonic signals generated by sources in the low to moderate kiloton yield range can be seismically observed and can be positively identified without the aid of microbarometric data. Original contains color plates: All DTIC and NTIS reproductions will be in black and white.