Lajitas Quiet Site Noise Study

Abstract

Ambient earth noise in the 1-20 Hz band was studied at a site remote from cultural noise sources in southwest Texas. A small structure, vertical component array was deployed which was specially designed to cope with the low noise conditions at the site. In the 1-10 Hz band, the power spectra at this site were about 10 db lower than previously reported spectra at other quiet sites. The noise appears to be stationary in time and space and is characterized by two peaks at 2 and 5 Hz, of which the sources are not known. This site appears to be capable of providing source spectral information out to at least 10 Hz, provided that the appropriate instrumentation is available

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1981
Accession Number
ADA112945

Entities

People

  • Todd Li

Organizations

  • Teledyne Technologies

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Amplifiers
  • Contracts
  • Digital Recording Systems
  • Earthquakes
  • Explosions
  • Frequency
  • Frequency Bands
  • Frequency Response
  • Low Noise
  • Monitoring
  • Noise
  • Nuclear Explosions
  • Peak Power
  • Power Spectra
  • Recording Systems
  • Security
  • Seismic Arrays

Readers

  • Seismology
  • Systems Analysis and Design

Technology Areas

  • Space